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Version 261.16 by Xiaoling on 2023/07/17 18:14
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1 (% style="text-align:center" %)
2 [[image:image-20230717152014-10.png||height="575" width="339"]]
3
4
5
6 **Table of Contents:**
7
8 {{toc/}}
9
10
11
12
13
14 = 1. Introdução =
15
16 == 1.1 O que é LHT65N LoRaWAN Temperatura & Umidade Sensor ==
17
18
19 (((
20 O sensor de temperatura e umidade Dragino LHT65N é um sensor LoRaWAN de longo alcance. Inclui um sensor de temperatura e umidade embutido e tem um conector de sensor externo para conectar a um sensor de temperatura externo.
21
22
23 O LHT65N permite que os usuários enviem dados e alcancem distâncias extremamente longas. Fornece comunicação de espectro de propagação de ultra-longo alcance e alta imunidade à interferência, minimizando o consumo atual. Ele visa aplicações profissionais de rede de sensores sem fio, como sistemas de irrigação, medição inteligente, cidades inteligentes, automação de edifícios e assim por diante.
24
25
26 LHT65N tem uma bateria embutida de 2400mAh não recarregável que pode ser usada por até 10 anos*.
27
28
29 LHT65N é totalmente compatível com o protocolo LoRaWAN v1.0.3 Classe A, ele pode trabalhar com um gateway LoRaWAN padrão.
30
31
32 O LHT65N suporta a funcionalidade Datalog. Ele registrará os dados quando não houver cobertura de rede e os usuários podem recuperar o valor do sensor mais tarde para garantir que não haja perda para cada leitura do sensor.
33
34
35 ~* A vida real da bateria depende de quantas vezes enviar dados, consulte o capítulo do analisador da bateria.
36 )))
37
38
39 == 1.2 Características ==
40
41
42 * Protocolo LoRaWAN v1.0.3 Classe A
43 * Bandas de frequência: CN470/EU433/KR920/US915/EU868/AS923/AU915
44 * Comandos AT para alterar os parâmetros
45 * Parâmetros de configuração remota via LoRaWAN Downlink
46 * Firmware atualizável através da porta do programa
47 * Built-in 2400mAh bateria para até 10 anos de uso.
48 * Built-in sensor de temperatura e umidade
49 * Sensores externos opcionais
50 * LED de três cores para indicar o estado de funcionamento
51 * Recurso de registo de dados (máximo de 3328 registos)
52
53
54 == 1.3 Especificação ==
55
56
57 (% style="color:#037691" %)**Sensor de temperatura incorporado:**
58
59 * Resolução: 0,01 °C
60 * Tolerância de precisão: Tipo ± 0,3 °C
61 * Deriva a longo prazo: < 0,02 °C/ano
62 * Faixa de operação: -40 ~~ 85 °C
63
64 (% style="color:#037691" %)**Sensor de humidade incorporado:**
65
66 * Resolução: 0,04%UR
67 * Tolerância da precisão: Tipo ±3%RH
68 * Deriva a longo prazo: < 0,02 °C/ano
69 * Faixa de operação: 0 ~~ 96%RH
70
71 (% style="color:#037691" %)**Sensor de temperatura externo:**
72
73 * Resolução: 0,0625 °C
74 * ±0,5°C precisão de -10°C a +85°C
75 * ±2°C precisão de -55°C a +125°C
76 * Faixa de operação: -55 °C ~~ 125 °C
77
78
79 = 2. Conecte LHT65N ao servidor IoT =
80
81 == 2.1 Como funciona o LHT65N? ==
82
83
84 (((
85 O LHT65N é configurado como o modo LoRaWAN OTAA Classe A por padrão. Cada LHT65N é enviado com um conjunto único mundial de chaves OTAA. Para usar o LHT65N em uma rede LoRaWAN, primeiro, precisamos colocar as chaves OTAA no LoRaWAN Network Server e, em seguida, ativar o LHT65N.
86
87
88 Se o LHT65N estiver sob a cobertura desta rede LoRaWAN. LHT65N pode entrar na rede LoRaWAN automaticamente. Depois de ingressar com sucesso, o LHT65N começará a medir a temperatura e umidade do ambiente e começará a transmitir dados do sensor para o servidor LoRaWAN. O período padrão para cada uplink é de 20 minutos.
89 )))
90
91
92 == 2. 2 Como ativar o LHT65N? ==
93
94
95 (((
96 O LHT65N tem dois modos de trabalho:
97 )))
98
99 * (((
100 (% style="color:blue" %)**Modo de Suspensão Profunda:**(%%) LHT65N não tem nenhuma ativação LoRaWAN. Este modo é usado para armazenamento e transporte para economizar a vida útil da bateria.
101 )))
102 * (((
103 (% style="color:blue" %)**Modo de Trabalho:**(%%) Neste modo, o LHT65N funciona como o modo Sensor LoRaWAN para entrar na rede LoRaWAN e enviar os dados do sensor para o servidor. Entre cada amostragem/tx/rx periodicamente, LHT65N estará no modo STOP (modo IDLE), no modo STOP, LHT65N tem o mesmo consumo de energia que o modo Deep Sleep.
104 )))
105
106 (((
107 O LHT65N é definido no modo de sono profundo por padrão; O botão ACT na frente é para alternar para diferentes modos:
108 )))
109
110
111 [[image:image-20230717144740-2.png||height="391" width="267"]]
112
113 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
114 |=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Comportamento no ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Função**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Acção**
115 |(% style="background-color:#f2f2f2; width:167px" %)Pressionando ACT entre 1s < tempo < 3s|(% style="background-color:#f2f2f2; width:117px" %)Teste o estado da ligação ascendente|(% style="background-color:#f2f2f2; width:225px" %)Se o LHT65N já estiver unido à rede rhe LoRaWAN, o LHT65N enviará um pacote de uplink, se o LHT65N tiver sensor externo conectado, o led azul piscará uma vez. Se o LHT65N não tiver sensor externo, o led vermelho piscará uma vez.
116 |(% style="background-color:#f2f2f2; width:167px" %)Pressionando ACT por mais de 3s|(% style="background-color:#f2f2f2; width:117px" %)Dispositivo Activo|(% style="background-color:#f2f2f2; width:225px" %)O led verde piscará rapidamente 5 vezes, o LHT65N entrará no modo de trabalho e começará a juntar-se à rede LoRaWAN.
117 O led verde ligará solidamente por 5 segundos após a junção na rede.
118 |(% style="background-color:#f2f2f2; width:167px" %)Pressione rapidamente ACT 5 vezes.|(% style="background-color:#f2f2f2; width:117px" %)Desactivar o Dispositivo|(% style="background-color:#f2f2f2; width:225px" %)(((
119 O led vermelho ficará sólido durante 5 segundos. Significa que LHT65N está em modo de sono profundo.
120 )))
121
122 == 2.3 Exemplo para ingressar na rede LoRaWAN ==
123
124
125 (% class="wikigeneratedid" %)
126 Esta seção mostra um exemplo de como entrar no servidor IoT TTN V3 LoRaWAN. O uso com outros servidores IoT LoRaWAN é de um procedimento semelhante.
127
128
129 (% class="wikigeneratedid" %)
130 [[image:image-20220522232442-1.png||_mstalt="427830" height="387" width="648"]]
131
132 Suponha que o LPS8N já esteja configurado para se conectar à rede [[TTN V3>>https://eu1.cloud.thethings.network]], então ele fornece cobertura de rede para LHT65N. Em seguida, precisamos adicionar o dispositivo LHT65N em TTN V3:
133
134 (((
135
136 )))
137
138 === 2.3.1 Etapa 1: Crie dispositivo n ttn ===
139
140
141 (((
142 Crie um dispositivo no TTN V3 com as teclas OTAA do LHT65N.
143
144 Cada LHT65N é enviado com um adesivo com seu dispositivo eui, chave de aplicativo e aplicativo eui como abaixo:
145 )))
146
147 [[image:image-20230426083319-1.png||height="258" width="556"]]
148
149 O usuário pode inserir essas chaves no portal do servidor Lorawan. Abaixo está a captura de tela do TTN V3:
150
151 Adicione o aplicativo EUI no aplicativo.
152
153
154 [[image:image-20220522232916-3.png||_mstalt="430495"]]
155
156
157 [[image:image-20220522232932-4.png||_mstalt="430157"]]
158
159
160 [[image:image-20220522232954-5.png||_mstalt="431847"]]
161
162
163
164 (% style="color:red" %)**Nota: LHT65N Use a mesma carga útil que LHT65.**
165
166
167 [[image:image-20220522233026-6.png||_mstalt="429403"]]
168
169
170 INSIDE APP EUI, APP KEY e DEV EUI:
171
172
173 [[image:image-20220522233118-7.png||_mstalt="430430"]]
174
175
176 === 2.3.2 Passo 2: Ative o LHT65N pressionando o botão ACT por mais de 5 segundos. ===
177
178
179 (((
180 Use o botão ACT para ativar o LHT65N e ele se conectará automaticamente à rede TTN V3. Após o sucesso da junção, ele começará a carregar os dados do sensor para o TTN V3 e o usuário poderá ver no painel.
181 )))
182
183 [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
184
185
186 == 2.4 Carga útil de uplink (Fport~=2) ==
187
188
189 (((
190 A carga de uplink inclui totalmente 11 bytes. Os pacotes de uplink usam FPORT=2 e a cada 20 minutos enviam um uplink por padrão.
191 )))
192
193 (((
194 Após cada uplink, o LED AZUL piscará uma vez.
195 )))
196
197 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:390px" %)
198 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)Tamanho( bytes)|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)(((
199 **2**
200 )))|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)(((
201 **2**
202 )))|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)(((
203 **2**
204 )))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
205 **1**
206 )))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
207 **4**
208 )))
209 |(% style="width:97px" %)Valor|(% style="width:39px" %)(((
210 [[MTD>>||anchor="H2.4.2BAT-BatteryInfo"]]
211 )))|(% style="width:100px" %)(((
212 (((
213 [[Temperatura incorporada>>||anchor="H2.4.3Built-inTemperature"]]
214 )))
215 )))|(% style="width:77px" %)(((
216 (((
217 [[Umidade incorporada>>||anchor="H2.4.4Built-inHumidity"]]
218 )))
219 )))|(% style="width:47px" %)(((
220 [[Ext>>||anchor="H2.4.5Ext23"]] #
221 )))|(% style="width:51px" %)(((
222 [[Valor Ext>>||anchor="H2.4.6Extvalue"]]
223 )))
224
225 * Os primeiros 6 bytes: tem significados fixos para cada LHT65N.
226
227 * O 7º byte (EXT #): define o modelo do sensor externo.
228
229 * O 8º ~~ 11º byte: o valor para o valor do sensor externo. A definição é baseada no tipo de sensor externo. (Se EXT=0, não haverá esses quatro bytes.)
230
231
232 === 2.4.1 Decodificador em TTN V3 ===
233
234
235 Quando o payload do uplink chega TTNv3, ele mostra o formato HEX e não é fácil de ler. Podemos adicionar LHT65N decodificador em TTNv3 para leitura amigável.
236
237 Abaixo está a posição para colocar o decodificador e o decodificador LHT65N pode ser baixado aqui : [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
238
239
240 [[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
241
242
243 === 2.4.2 Informações da bateria BAT ===
244
245
246 Esses dois bytes de BAT incluem o estado da bateria e a tensão atual.
247
248 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:477px" %)
249 |=(% style="width: 69px; background-color:#D9E2F3;color:#0070C0" %)(((
250 **Bit(bit)**
251 )))|=(% style="width: 253px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)[13:0]
252 |(% style="width:66px" %)Valor|(% style="width:250px" %)Estado MTD
253 00 b): Ultra baixo ( MTD <= 2,50v)
254 01 b): Baixo (2,50v <=MTD <= 2,55v)
255 10 b): OK (2,55v <= MTD <=2,65v)
256 11 b): Bom (MTD >= 2,65v)|(% style="width:152px" %)Na realidade, tensão MTD
257
258 **(b) significa binário**
259
260
261 [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
262
263 Verifique a tensão da bateria para LHT65N.
264
265 * Status BAT=(0Xcba4>>14)&0xFF=11 (BIN), muito bom
266 * Tensão da bateria = 0xCBA4 & 0x3FFF = 0x0BA4 = 2980mV
267
268
269
270 === 2.4.3 Temperatura interna ===
271
272
273 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
274
275 * Temperatura: 0x0ABB/100=27,47ÿ
276
277 [[image:image-20220522235639-3.png||_mstalt="432120"]]
278
279 * Temperatura: (0xF5C6-65536)/100=-26,18ÿ
280
281
282 (% style="display:none" %)
283
284 === 2.4.4 Umidade interna ===
285
286
287 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
288
289 * Umidade: 0x025C/10=60,4%
290
291
292 (% style="display:none" %)
293
294 === 2.4.5 Ext # ===
295
296
297 Bytes para Sensor Externo:
298
299 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:425px" %)
300 |=(% style="width: 102px; background-color:#D9E2F3;color:#0070C0" %)**EXT # Valor**|=(% style="width: 323px;background-color:#D9E2F3;color:#0070C0" %)Tipo de sensor externo
301 |(% style="width:102px" %)0x01|(% style="width:319px" %)Sensor E3, Sensor de Temperatura
302 |(% style="width:102px" %)0x09|(% style="width:319px" %)Sensor E3, Sensor de Temperatura, Mod de Registro de Dados
303
304 === 2.4.6 Valor externo ===
305
306 ==== 2.4.6.1 Ext~=1, Sensor de Temperatura E3 ====
307
308
309 [[image:image-20220522235639-5.png||_mstalt="432848"]]
310
311
312 * DS18B20 temp=0x0ADD/100=27,81ÿ
313
314 Os últimos 2 bytes de dados não têm sentido.
315
316
317
318 [[image:image-20220522235639-6.png||_mstalt="433212"]]
319
320 * Temperatura externa= (0xF54F-65536)/100=-27.37℃
321
322 F54F: (F54F & 8000 == 1) , temp = (F54F - 65536)/100 = 27,37℃
323
324 (0105 & 8000: Julgue se o bit mais alto é 1, quando o bit mais alto é 1, é negativo)
325
326 Os últimos 2 bytes de dados não têm sentido
327
328 Se o sensor externo for 0x01 e não houver temperatura externa conectada. A temperatura será ajustada para 7FFF que é 327.67℃
329
330
331 ==== 2.4.6.2 Ext~=9, sensor E3 com Unix Timestamp ====
332
333
334 (((
335 O modo Timestamp é projetado para LHT65N com sonda E3, ele enviará a carga útil de uplink com timestamp Unix. Com a limitação de 11 bytes (distância máxima da banda AU915/US915/AS923), o modo de carimbo de hora será falta de campo de tensão BAT, em vez disso, ele mostra o status da bateria. A carga útil é a seguinte:
336 )))
337
338 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
339 |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)Tamanho( bytes)|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
340 **2**
341 )))|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)(((
342 **2**
343 )))|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)(((
344 **2**
345 )))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
346 **1**
347 )))|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
348 **4**
349 )))
350 |(% style="width:110px" %)Valor|(% style="width:71px" %)Temperatura externa|(% style="width:99px" %)(((
351 [[Temperatura incorporada>>||anchor="H2.4.3Built-inTemperature"]]
352 )))|(% style="width:132px" %)(((
353 Estado MTD & [[Umidade incorporada>>||anchor="H2.4.4Built-inHumidity"]]
354 )))|(% style="width:54px" %)Estado & Ext|(% style="width:64px" %)(((
355 [[Carimbo Horário do Unix>>||anchor="H2.6.2UnixTimeStamp"]]
356 )))
357
358 * **Status da bateria e umidade interna**
359
360 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)
361 |=(% style="width: 69px;background-color:#D9E2F3;color:#0070C0" %)Bit(bit)|=(% style="width: 269px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)[15:14]|=(% style="width: 121px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)[11:0]
362 |(% style="width:67px" %)Valor|(% style="width:269px" %)Estado MTD
363 00 b): Ultra baixo ( MTD <= 2,50v)
364 01 b): Baixo (2,50v <=MTD <= 2,55v)
365 10 b): OK (2,55v <= MTD <=2,65v)
366 11 b): Bom (MTD >= 2,65v)|(% style="width:121px" %)(((
367 [[Umidade incorporada>>||anchor="H2.4.4Built-inHumidity"]]
368 )))
369
370 * ** Status e byte externo**
371
372 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
373 |(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Bits**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**7**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**5**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**[3:0]**
374 |(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)Sinalizador Nenhum-ACK|(% style="width:146px" %)Mensagem de Enquete FLAG|(% style="width:109px" %)Sincronizar hora OK|(% style="width:143px" %)Solicitação de Horário Unix |(% style="width:106px" %)Ext: 0b(1001)
375
376
377 * **Bandeira da mensagem da enquete:  **1: Esta mensagem é uma resposta da mensagem da enquete, 0: significa que esta é uma ligação uplink normal.
378 * **Tempo de sincronização OK:  **1: Definir tempo ok, 0: N/A. Após o envio da solicitação SYNC, LHT65N definirá este bit como 0 até obter o carimbo de hora do servidor de aplicativos.
379 * **Unix Time Request:  **1: Request server downlink Unix time, 0: N/A. Neste modo, o LHT65N definirá este bit para 1 a cada 10 dias para solicitar um tempo SYNC. (AT+SYNCMOD para definir isto)
380
381
382
383
384 ==== 2.4.6.3 Ext~=6, Sensor ADC (use com cabo E2) ====
385
386
387 Neste modo, o usuário pode conectar sensor ADC externo para verificar o valor ADC. O 3V3_OUT pode ser usado para alimentar o sensor ADC externo; o usuário pode controlar o poder no tempo para isso.
388
389 (% style="color:blue" %)**sensor configurando:**
390
391 **AT+EXT=6, **timeout Tempo para ligar este sensor, de 0 ~~ 65535ms
392
393 **Por exemplo:**
394
395 AT+EXT=6.1000 alimentará este sensor por 1000ms antes de amostrar o valor ADC.
396
397
398 Ou use o comando downlink A2 para definir o mesmo.
399 A faixa de medição do nó é de apenas cerca de 0.1V a 1.1V A resolução da tensão é de cerca de 0.24mv.
400 Quando a tensão de saída medida do sensor não está dentro da faixa de 0,1V e 1,1V, o terminal de tensão de saída do sensor deve ser dividido O exemplo na figura a seguir é reduzir a tensão de saída do sensor por três vezes Se for necessário reduzir mais vezes, calcule de acordo com a fórmula na figura e conecte a resistência correspondente em série.
401
402 [[image:image-20220628150112-1.png||_mstalt="427414" height="241" width="285"]]
403
404
405 Quando o pino ADC_IN1 é conectado ao GND ou suspenso, o valor de ADC é 0
406
407 [[image:image-20220628150714-4.png||_mstalt="431054"]]
408
409
410 Quando a tensão coletada por ADC_IN1 for menor do que a faixa mínima, a faixa mínima será usada como saída; Da mesma forma, quando a tensão coletada é maior do que a faixa máxima, a faixa máxima será usada como saída.
411
412
413 1) A faixa mínima é de cerca de 0.1V. Cada chip tem calibração interna, assim que este valor está perto de 0.1V
414
415 [[image:image-20220628151005-5.png||_mstalt="429546"]]
416
417
418 2) A faixa máxima é de cerca de 1.1V. Cada chip tem calibração interna, assim que este valor está perto de 1.1v
419
420 [[image:image-20220628151056-6.png||_mstalt="431873"]]
421
422
423 3) Dentro do alcance
424
425 [[image:image-20220628151143-7.png||_mstalt="431210"]]
426
427
428
429 ==== 2.4.6.4 Ext~=2 TMP117 Sensor (desde Firmware v1.3)(% style="display:none" %) (%%) ====
430
431 [[image:image-20230717151328-8.png]]
432
433 (% style="display:none" %) (%%)
434
435
436
437 (% style="color:blue" %)**Ext=2, Sensor de temperatura (TMP117):**
438
439 [[image:image-20220906102307-7.png||_mstalt="430443"]]
440
441
442 (% style="color:blue" %)**Modo de Interrupção e Modo de Contagem:**(% style="color:blue; display:none" %)** **
443
444 O cabo externo NE2 pode ser usado para MOD4 e MOD8
445
446
447
448 ==== 2.4.6.5 Ext~=11 SHT31 Sensor (desde Firmware v1.4.1) ====
449
450
451
452 [[image:image-20230717151245-7.png]]
453
454 (% style="color:blue" %)**Ext=11, sensor de temperatura e umidade (SHT31):**
455
456 [[image:SHT31.png]]
457
458
459
460 ==== 2.4.6.6 Ext~=4 Interrupt Mode (Desde Firmware v1.3) ====
461
462
463 (% style="color:red" %)**Nota: Neste modo, a saída de 3.3v estará sempre ligada. LHT65N enviará um uplink quando houver um gatilho.**
464
465
466 (% style="color:blue" %)**O modo de interrupção pode ser usado para conectar-se a sensores externos de interrupção, tais como:**
467
468 (% style="color:#037691" %)**Caso 1: sensor de porta.** (%%)3.3v Out para tal sensor é apenas detectar Abrir / Fechar.
469
470 No estado aberto, o consumo de energia é o mesmo que se não houver nenhuma sonda
471
472 No estado Close, o consumo de energia será 3uA maior do que o normal.
473
474 [[image:image-20220906100852-1.png||_mstalt="429156" height="205" width="377"]]
475
476
477 Ext=4, Sensor de Interrupção:
478
479 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
480 |(% style="width:101px" %)(((
481 **AT+EXT=4,1**
482 )))|(% style="width:421px" %)Pacote de uplink enviado na interrupção ascendente e caindo
483 |(% style="width:101px" %)(((
484 **AT+EXT=4,2**
485 )))|(% style="width:421px" %)Enviou um pacote de ligação ascendente apenas na interrupção em queda
486 |(% style="width:101px" %)(((
487 **AT+EXT=4,3**
488 )))|(% style="width:421px" %)Enviou o pacote de uplink apenas na interrupção crescente
489
490 Acionador pela borda de queda:
491
492 [[image:image-20220906101145-2.png||_mstalt="428324"]]
493
494
495 Trigger by raise edge:
496
497 [[image:image-20220906101145-3.png||_mstalt="428688"]]
498
499
500
501 ==== 2.4.6.7 Ext~=8 Modo de contagem (desde Firmware v1.3) ====
502
503
504 (% style="color:red" %)**Nota: Neste modo, a saída de 3,3 V estará sempre ligada. O LHT65N contará para cada interrupção e uplink periodicamente.**
505
506
507 (% style="color:blue" %)**Caso 1: **Sensor de fluxo de baixo consumo de energia, esse sensor de fluxo tem saída de pulso e o consumo de energia no nível uA e pode ser alimentado por LHT65N.
508
509 [[image:image-20220906101320-4.png||_mstalt="427336" height="366" width="698"]]
510
511
512 (% style="color:blue" %)**Caso 2: **Sensor de Fluxo Normal: Este sensor de fluxo tem maior consumo de energia e não é adequado para ser alimentado por LHT65N. É alimentado por energia externa e saída <3,3 v pulso
513
514 [[image:image-20220906101320-5.png||_mstalt="427700" height="353" width="696"]]
515
516
517 Ext=8, Counting Sensor ( 4 bytes)：
518
519 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:407px" %)
520 |(% style="width:131px" %)(((
521 **AT+EXT=8,0**
522 )))|(% style="width:271px" %)Contagem na interrupção de queda
523 |(% style="width:131px" %)(((
524 **AT+EXT=8,1**
525 )))|(% style="width:271px" %)Contagem na interrupção ascendente
526 |(% style="width:131px" %)(((
527 **AT+SETCNT=60**
528 )))|(% style="width:271px" %)Enviou a contagem atual para 60
529
530 [[image:image-20220906101320-6.png||_mstalt="428064"]]
531
532
533 (% style="color:blue" %)**Comando de ligação descendente A2:**
534
535 A2 02: O mesmo que AT+EXT=2 (AT+EXT= segundo byte)
536
537 A2 06 01 F4: O mesmo que AT+EXT=6.500 (AT+EXT= segundo byte, terceiro e quarto bytes)
538
539 A2 04 02: O mesmo que AT+EXT=4,2 (AT+EXT= segundo byte, terceiro byte)
540
541 A2 08 01 00: O mesmo que AT+EXT=8,0 (AT+EXT= segundo byte, quarto byte)
542
543 A2 08 02 00 00 00 3C: O mesmo que AT+ SETCNT=60 (AT+ SETCNT = 4º byte e 5º byte e 6º byte e 7º byte)
544
545
546 ==== 2.4.6.8 Ext~=10, sensor E2 (TMP117) com Unix Timestamp (desde firmware V1.3.2) ====
547
548
549 (((
550 O modo Timestamp é projetado para LHT65N com sonda E2, ele enviará a carga útil de uplink com timestamp Unix. Com a limitação de 11 bytes (distância máxima da banda AU915/US915/AS923), o modo de carimbo de hora será falta de campo de tensão BAT, em vez disso, ele mostra o status da bateria. A carga útil é a seguinte:
551 )))
552
553 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
554 |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)Tamanho(bytes)|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
555 **2**
556 )))|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)(((
557 **2**
558 )))|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)(((
559 **2**
560 )))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
561 **1**
562 )))|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
563 **4**
564 )))
565 |(% style="width:110px" %)Valor|(% style="width:71px" %)Temperatura externa|(% style="width:99px" %)(((
566 [[Temperatura incorporada>>||anchor="H2.4.3Built-inTemperature"]]
567 )))|(% style="width:132px" %)(((
568 Estado MTD & [[Umidade incorporada>>||anchor="H2.4.4Built-inHumidity"]]
569 )))|(% style="width:54px" %)Estado & Ext|(% style="width:64px" %)(((
570 [[Carimbo Horário do Unix>>||anchor="H2.6.2UnixTimeStamp"]]
571 )))
572
573 * **Estado da bateria e humidade incorporada**
574
575 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)
576 |=(% style="width: 69px;background-color:#D9E2F3;color:#0070C0" %)Bit(bit)|=(% style="width: 258px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 134px;background-color:#D9E2F3;color:#0070C0" %)[11:0]
577 |(% style="width:67px" %)Valor|(% style="width:256px" %)Estado MTD
578 00 b): Ultra baixo ( MTD <= 2,50v)
579 01 b): Baixo (2,50v <=MTD <= 2,55v)
580 10 b): OK (2,55v <= MTD <=2,65v)
581 11 b): Bom (MTD >= 2,65v)|(% style="width:132px" %)(((
582 [[Umidade incorporada>>||anchor="H2.4.4Built-inHumidity"]]
583 )))
584
585 * **Status e byte externo**
586
587 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
588 |(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Bits**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**7**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**5**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**[3:0]**
589 |(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)Bandeira Sem ACK|(% style="width:146px" %)FLAG de Mensagem de Sondagem|(% style="width:109px" %)Tempo de sincronização OK|(% style="width:143px" %)Pedido de Tempo Unix|(% style="width:106px" %)Ext: 0b(1001)
590
591 * (% style="color:blue" %)**Sinalizador de mensagem de votação:**(%%)  1: esta mensagem é uma resposta de mensagem de votação, 0: significa que este é um uplink normal.
592 * (% style="color:blue" %)**Tempo de sincronização OK:** (%%) 1: Definir o tempo ok, 0: N/A. Após o envio da solicitação SYNC, LHT65N definirá este bit como 0 até obter o carimbo de hora do servidor de aplicativos.
593 * (% style="color:blue" %)**Pedido de Tempo Unix:**(%%)  1: Request server downlink Unix time, 0: N/A. Neste modo, o LHT65N definirá este bit para 1 a cada 10 dias para solicitar um tempo SYNC. (AT+SYNCMOD para definir isto)
594
595
596 == 2.5 Mostrar dados sobre o Datacake ==
597
598
599 (((
600 A plataforma Datacake IoT fornece uma interface amigável para mostrar os dados do sensor, uma vez que temos dados do sensor no TTN V3, podemos usar o Datacake para conectar ao TTN V3 e ver os dados no Datacake. Abaixo estão os passos:
601 )))
602
603
604 (((
605 (% style="color:blue" %)**Passo 1:**(%%) Certifique-se de que seu dispositivo está programado e conectado corretamente à rede LoRaWAN.
606 )))
607
608 (((
609 (% style="color:blue" %)**Passo 2: **(%%)Configure seu aplicativo para encaminhar dados para o Datacake você precisará adicionar integração. Vá para TTN V3 Console ~-~-> Aplicações ~-~-> Integrações ~-~-> Adicionar Integrações.
610 )))
611
612
613 (((
614 Adicionar a Bolo de Dados:
615 )))
616
617
618 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
619
620
621
622 Select default key as Access Key:
623
624
625 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
626
627
628 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
629
630
631 [[image:image-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
632
633
634 [[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
635
636
637 == 2.6 Datalog Feature ==
638
639
640 (((
641 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
642 )))
643
644
645 === 2.6.1 Ways to get datalog via LoRaWAN ===
646
647
648 There are two methods:
649
650 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
651
652
653 (% style="color:blue" %)**Method 2: **(%%)Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
654
655
656 (% style="color:red" %)**Note for method 2:**
657
658 * a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
659 * b) LHT65N will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N gets a ACK, LHT65N will consider there is a network connection and resend all NONE-ACK Message.
660
661 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
662
663
664 [[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
665
666
667 === 2.6.2 Unix TimeStamp ===
668
669
670 LHT65N uses Unix TimeStamp format based on
671
672
673 [[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
674
675
676
677 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
678
679 Below is the converter example
680
681 [[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
682
683
684 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
685
686
687 === 2.6.3 Set Device Time ===
688
689
690 (((
691 (% style="color:blue" %)**There are two ways to set device's time:**
692 )))
693
694 (((
695 **1.  Through LoRaWAN MAC Command (Default settings)**
696 )))
697
698 (((
699 User need to set SYNCMOD=1 to enable sync time via MAC command.
700 )))
701
702 (((
703 Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
704 )))
705
706 (((
707 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
708 )))
709
710
711 (((
712 **2. Manually Set Time**
713 )))
714
715 (((
716 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
717 )))
718
719
720 === 2.6.4 Poll sensor value ===
721
722
723 User can poll sensor value based on timestamps from the server. Below is the downlink command.
724
725 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:428px" %)
726 |(% style="background-color:#d9e2f3; color:#0070c0; width:58px" %)**1byte**|(% style="background-color:#d9e2f3; color:#0070c0; width:128px" %)**4bytes**|(% style="background-color:#d9e2f3; color:#0070c0; width:123px" %)**4bytes**|(% style="background-color:#d9e2f3; color:#0070c0; width:116px" %)**1byte**
727 |(% style="width:58px" %)31|(% style="width:128px" %)Timestamp start|(% style="width:123px" %)Timestamp end|(% style="width:116px" %)Uplink Interval
728
729 Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
730
731 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
732
733 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00's data
734
735 Uplink Internal =5s, means LHT65N will send one packet every 5s. range 5~~255s.
736
737
738 === 2.6.5 Datalog Uplink payload ===
739
740
741 The Datalog poll reply uplink will use below payload format.
742
743 **Retrieval data payload:**
744
745 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
746 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
747 **Size(bytes)**
748 )))|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**4**
749 |(% style="width:97px" %)**Value**|(% style="width:123px" %)[[External sensor data>>||anchor="H2.4.6Extvalue"]]|(% style="width:108px" %)[[Built In Temperature>>||anchor="H2.4.3Built-inTemperature"]]|(% style="width:133px" %)[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]|(% style="width:159px" %)Poll message flag & Ext|(% style="width:80px" %)[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
750
751 **Poll message flag & Ext:**
752
753 [[image:image-20221006192726-1.png||_mstalt="430508" height="112" width="754"]]
754
755 (% style="color:blue" %)**No ACK Message**(%%):  1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
756
757 (% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
758
759 * Poll Message Flag is set to 1.
760
761 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
762
763 For example, in US915 band, the max payload for different DR is:
764
765 (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
766
767 (% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
768
769 (% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data
770
771 (% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.
772
773 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
774
775
776 **Example:**
777
778 If LHT65N has below data inside Flash:
779
780 [[image:image-20230426171833-4.png]]
781
782
783 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
784
785 Where : Start time: 60065F97 = time 21/1/19 04:27:03
786
787 Stop time: 60066DA7= time 21/1/19 05:27:03
788
789
790 **LHT65N will uplink this payload.**
791
792 [[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
793
794
795 __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
796
797 Where the first 11 bytes is for the first entry:
798
799 7FFF089801464160065F97
800
801 Ext sensor data=0x7FFF/100=327.67
802
803 Temp=0x088E/100=22.00
804
805 Hum=0x014B/10=32.6
806
807 poll message flag & Ext=0x41,means reply data,Ext=1
808
809 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
810
811
812 == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
813
814
815 (((
816 when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.
817 )))
818
819 (((
820 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
821
822
823 === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
824
825
826 **Internal GXHT30 temperature alarm(Acquisition time: fixed at one minute)**
827
828 (((
829 (% class="box infomessage" %)
830 (((
831 **AT+WMOD=3**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
832
833 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
834
835 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
836
837 (% _mstmutation="1" %)**AT+ARTEMP=? **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
838
839 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
840
841 **AT+LEDALARM=1** :       Enable LED visual Alarm.
842 )))
843 )))
844
845 (% style="color:#4f81bd" %)**Downlink Command:**
846
847 AT+WMOD=1:  A501  , AT+WMOD=0 :  A600
848
849 AT+CITEMP=1 : A60001
850
851 AT+ARTEMP=1,60  :  A70001003C
852
853 AT+ARTEMP=-16,60 :  A7FFF0003C
854
855 AT+LEDALARM=1  :  3601
856
857
858 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
859
860 Total bytes: 8 bytes
861
862 **Example: **AA0100010001003C
863
864 WMOD=01
865
866 CITEMP=0001
867
868 TEMPlow=0001
869
870 TEMPhigh=003C
871
872
873 **DS18B20 and TMP117 Threshold Alarm**
874
875 **~ AT+WMOD=1,60,-10,20**
876
877 (% style="color:#4f81bd" %)**Downlink Command:**
878
879 **Example: **A5013CFC180014
880
881 MOD=01
882
883 CITEMP=3C(S)
884
885 TEMPlow=FC18
886
887 TEMPhigh=0014
888
889
890 **Fluctuation alarm for DS18B20 and TMP117(Acquisition time: minimum 1s)**
891
892 **AT+WMOD=2,60,5** 
893
894 (% style="color:#4f81bd" %)**Downlink Command:**
895
896 **Example: **A5023C05
897
898 MOD=02
899
900 CITEMP=3C(S)
901
902 temperature fluctuation=05
903
904
905 **Sampling multiple times and uplink together**
906
907 **AT+WMOD=3,1,60,20,-16,32,1**   
908
909 Explain:
910
911 * (% style="color:#037691" %)**parameter1: **(%%)Set Working Mode to **Mode 3**
912 * (% style="color:#037691" %)**parameter2:**(%%) Set the temperature sampling mode to** 1**(1:DS18B20;2:TMP117;3:** **Internal GXHT30).
913 * (% style="color:#037691" %)**parameter3: **(%%)Sampling Interval is **60**s.
914 * (% style="color:#037691" %)**parameter4: **(%%)When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
915 * (% style="color:#037691" %)**parameter5 & parameter6: **(%%)Temperature alarm range is **-16** to **32**°C,
916 * (% style="color:#037691" %)**parameter7:**(%%) 1 to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
917
918 (% style="color:#4f81bd" %)**Downlink Command:**
919
920 **Example: **A50301003C14FFF0002001
921
922 MOD=03
923
924 TEMP=DS18B20
925
926 CITEMP=003C(S)
927
928 Total number of acquisitions=14
929
930 TEMPlow=FFF0
931
932 TEMPhigh=0020
933
934 ARTEMP=01
935
936
937 **Uplink payload( Fport=3)**
938
939 **Example: CBEA**01**0992**//0A41//**09C4**
940
941 BatV=CBEA
942
943 TEMP=DS18B20
944
945 Temp1=0992  ~/~/ 24.50℃
946
947 Temp2=0A41  ~/~/ 26.25℃
948
949 Temp3=09C4  ~/~/ 25.00℃
950
951 (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
952
953 (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
954 )))
955
956
957 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
958
959
960 (% class="box infomessage" %)
961 (((
962 (((
963 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
964 )))
965
966 (((
967 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
968 )))
969
970 (((
971 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
972 )))
973
974 (((
975 (% _mstmutation="1" %)**AT+ARTEMP=? **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
976 )))
977
978 (((
979 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
980 )))
981 )))
982
983 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
984
985 Total bytes: 8 bytes
986
987 **Example:**AA0100010001003C
988
989 WMOD=01
990
991 CITEMP=0001
992
993 TEMPlow=0001
994
995 TEMPhigh=003C
996
997
998 == 2.8 LED Indicator ==
999
1000
1001 The LHT65 has a triple color LED which for easy showing different stage .
1002
1003 While user press ACT button, the LED will work as per LED status with ACT button.
1004
1005 In a normal working state:
1006
1007 * For each uplink, the BLUE LED or RED LED will blink once.
1008 BLUE LED when external sensor is connected.
1009 * RED LED when external sensor is not connected
1010 * For each success downlink, the PURPLE LED will blink once
1011
1012
1013 == 2.9 installation ==
1014
1015
1016 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
1017
1018
1019 = 3. Sensors and Accessories =
1020
1021 == 3.1 E2 Extension Cable ==
1022
1023
1024 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
1025
1026
1027 **1m long breakout cable for LHT65N. Features:**
1028
1029 * (((
1030 Use for AT Command, works for both LHT52/LHT65N
1031 )))
1032 * (((
1033 Update firmware for LHT65N, works for both LHT52/LHT65N
1034 )))
1035 * (((
1036 Supports ADC mode to monitor external ADC
1037 )))
1038 * (((
1039 Supports Interrupt mode
1040 )))
1041 * (((
1042 Exposed All pins from the LHT65N Type-C connector.
1043
1044
1045
1046 )))
1047
1048 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
1049
1050
1051 == 3.2 E3 Temperature Probe ==
1052
1053
1054 [[image:image-20220515080154-4.png||_mstalt="434681" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" height="201" width="195"]]
1055
1056
1057 Temperature sensor with 2 meters cable long
1058
1059 * Resolution: 0.0625 °C
1060 * ±0.5°C accuracy from -10°C to +85°C
1061 * ±2°C accuracy from -55°C to +125°C
1062 * Operating Range: -40 ~~ 125 °C
1063 * Working voltage 2.35v ~~ 5v
1064
1065 == 3.3 E31F Temperature Probe ==
1066
1067
1068 [[image:65N-E31F-1.jpg||height="169" width="170"]] [[image:image-20230717151424-9.png||height="221" width="204"]](% style="display:none" %)
1069
1070
1071 Temperature sensor with 1 meters cable long
1072
1073
1074 **Built-in Temperature Sensor:**
1075
1076 * Resolution: 0.01 °C
1077 * Accuracy Tolerance : Typ ±0.3 °C
1078 * Long Term Drift: < 0.02 °C/yr
1079 * Operating Range: -40 ~~ 80 °C
1080
1081 **Built-in Humidity Sensor:**
1082
1083 * Resolution: 0.04 % RH
1084 * Accuracy Tolerance : Typ ±3 % RH
1085 * Long Term Drift: < 0.02 °C/yr
1086 * Operating Range: 0 ~~ 96 % RH
1087
1088 **External Temperature Sensor :**
1089
1090 * Resolution: 0.01 °C
1091 * Accuracy Tolerance : Typical ±0.3 °C
1092 * Long Term Drift: < 0.02 °C/yr
1093 * Operating Range: -40 ~~ 125 °C
1094
1095 **External Humidity Sensor :**
1096
1097 * Resolution: 0.04 % RH
1098 * Accuracy Tolerance : Typ ±3 % RH
1099 * Long Term Drift: < 0.02 °C/yr
1100 * Operating Range: 0 ~~ 96 % RH
1101
1102
1103 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1104
1105
1106 (((
1107 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1108 )))
1109
1110 * (((
1111 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1112 )))
1113
1114 * (((
1115 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1116 )))
1117
1118 (((
1119 There are two kinds of commands to configure LHT65N, they are:
1120 )))
1121
1122 * (((
1123 (% style="color:#4f81bd" %)**General Commands**.
1124 )))
1125
1126 (((
1127 These commands are to configure:
1128 )))
1129
1130 1. (((
1131 General system settings like: uplink interval.
1132 )))
1133 1. (((
1134 LoRaWAN protocol & radio-related commands.
1135 )))
1136
1137 (((
1138 They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki: [[End Device Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1139 )))
1140
1141 * (((
1142 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1143 )))
1144
1145 (((
1146 These commands are only valid for LHT65N, as below:
1147 )))
1148
1149
1150 == 4.1 Set Transmit Interval Time ==
1151
1152
1153 Feature: Change LoRaWAN End Node Transmit Interval.
1154
1155
1156 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1157
1158 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:501px" %)
1159 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:166px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:180px" %)**Response**
1160 |(% style="width:155px" %)AT+TDC=?|(% style="width:162px" %)Show current transmit Interval|(% style="width:177px" %)30000 OK the interval is 30000ms = 30s
1161 |(% style="width:155px" %)AT+TDC=60000|(% style="width:162px" %)Set Transmit Interval|(% style="width:177px" %)OK Set transmit interval to 60000ms = 60 seconds
1162
1163 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1164
1165 Format: Command Code (0x01) followed by 3 bytes time value.
1166
1167 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1168
1169 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1170
1171 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1172
1173
1174 == 4.2 Set External Sensor Mode ==
1175
1176
1177 Feature: Change External Sensor Mode.
1178
1179 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1180
1181 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:468px" %)
1182 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:153px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:160px" %)**Response**
1183 |(% style="width:155px" %)AT+EXT=?|(% style="width:151px" %)Get current external sensor mode|(% style="width:158px" %)1 OK External Sensor mode =1
1184 |(% style="width:155px" %)AT+EXT=1|(% colspan="2" rowspan="1" style="width:309px" %)Set external sensor mode to 1
1185 |(% style="width:155px" %)AT+EXT=9|(% colspan="2" rowspan="1" style="width:309px" %)Set to external DS18B20 with timestamp
1186
1187 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1188
1189 Total bytes: 2 ~~ 5 bytes
1190
1191 **Example:**
1192
1193 * 0xA201: Set external sensor type to E1
1194
1195 * 0xA209: Same as AT+EXT=9
1196
1197 * 0xA20702003c: Same as AT+SETCNT=60
1198
1199
1200 == 4.3 Enable/Disable uplink Temperature probe ID ==
1201
1202
1203 (((
1204 Feature: If PID is enabled, device will send the temperature probe ID on:
1205 )))
1206
1207 * (((
1208 First Packet after OTAA Join
1209 )))
1210 * (((
1211 Every 24 hours since the first packet.
1212 )))
1213
1214 (((
1215 PID is default set to disable (0)
1216
1217
1218 )))
1219
1220 (% style="color:#4f81bd" %)**AT Command:**
1221
1222 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:381px" %)
1223 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:138px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:88px" %)**Response**
1224 |(% style="width:155px" %)AT+PID=1|(% style="width:136px" %)Enable PID uplink|(% style="width:86px" %)OK
1225
1226 (% style="color:#4f81bd" %)**Downlink Command:**
1227
1228 * **0xA800**  **~-~->** AT+PID=0
1229 * **0xA801**     **~-~->** AT+PID=1
1230
1231
1232 == 4.4 Set Password ==
1233
1234
1235 Feature: Set device password, max 9 digits
1236
1237 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1238
1239 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:372px" %)
1240 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:128px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:89px" %)**Response**
1241 |(% style="width:155px" %)AT+PWORD=?|(% style="width:124px" %)Show password|(% style="width:86px" %)(((
1242 123456
1243
1244 OK
1245 )))
1246 |(% style="width:155px" %)AT+PWORD=999999|(% style="width:124px" %)Set password|(% style="width:86px" %)OK
1247
1248 (% style="color:#4f81bd" %)**Downlink Command:**
1249
1250 No downlink command for this feature.
1251
1252
1253 == 4.5 Quit AT Command ==
1254
1255
1256 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1257
1258 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1259
1260 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:433px" %)
1261 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:191px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:86px" %)**Response**
1262 |(% style="width:155px" %)AT+DISAT|(% style="width:191px" %)Quit AT Commands mode|(% style="width:86px" %)OK
1263
1264 (% style="color:#4f81bd" %)**Downlink Command:**
1265
1266 No downlink command for this feature.
1267
1268
1269 == 4.6 Set to sleep mode ==
1270
1271
1272 Feature: Set device to sleep mode
1273
1274 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1275 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1276
1277 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1278
1279 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:513px" %)
1280 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:218px" %)**Response**
1281 |(% style="width:155px" %)AT+SLEEP|(% style="width:139px" %)Set to sleep mode|(% style="width:213px" %)(((
1282 Clear all stored sensor data…
1283
1284 OK
1285 )))
1286
1287 (% style="color:#4f81bd" %)**Downlink Command:**
1288
1289 * There is no downlink command to set to Sleep mode.
1290
1291
1292 == 4.7 Set system time ==
1293
1294
1295 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1296
1297 (% style="color:#4f81bd" %)**AT Command:**
1298
1299 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:506px" %)
1300 |(% style="background-color:#d9e2f3; color:#0070c0; width:188px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:318px" %)**Function**
1301 |(% style="width:154px" %)AT+TIMESTAMP=1611104352|(% style="width:285px" %)(((
1302 OK
1303
1304 Set System time to 2021-01-20 00:59:12
1305 )))
1306
1307 (% style="color:#4f81bd" %)**Downlink Command:**
1308
1309 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1310
1311
1312 == 4.8 Set Time Sync Mode ==
1313
1314
1315 (((
1316 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1317 )))
1318
1319 (((
1320 SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0.
1321 )))
1322
1323 (% style="color:#4f81bd" %)**AT Command:**
1324
1325 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:475px" %)
1326 |(% style="background-color:#d9e2f3; color:#0070c0; width:156px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:315px" %)**Function**
1327 |(% style="width:156px" %)AT+SYNCMOD=1|(% style="width:315px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
1328
1329 (% style="color:#4f81bd" %)**Downlink Command:**
1330
1331 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1332 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1333
1334
1335 == 4.9 Set Time Sync Interval ==
1336
1337
1338 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1339
1340 (% style="color:#4f81bd" %)**AT Command:**
1341
1342 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:472px" %)
1343 |(% style="background-color:#d9e2f3; color:#0070c0; width:158px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:314px" %)**Function**
1344 |(% style="width:156px" %)AT+SYNCTDC=0x0A |(% style="width:311px" %)Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
1345
1346 (% style="color:#4f81bd" %)**Downlink Command:**
1347
1348 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1349
1350
1351 == 4.10 Print data entries base on page. ==
1352
1353
1354 Feature: Print the sector data from start page to stop page (max is 416 pages).
1355
1356 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1357
1358 [[image:image-20230426164330-2.png]]
1359
1360 (% style="color:#4f81bd" %)**Downlink Command:**
1361
1362 No downlink commands for feature
1363
1364
1365 == 4.11 Print last few data entries. ==
1366
1367
1368 Feature: Print the last few data entries
1369
1370 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1371
1372 [[image:image-20230426164932-3.png]]
1373
1374 (% style="color:#4f81bd" %)**Downlink Command:**
1375
1376 No downlink commands for feature
1377
1378
1379 == 4.12 Clear Flash Record ==
1380
1381
1382 Feature: Clear flash storage for data log feature.
1383
1384 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1385
1386 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:503px" %)
1387 |(% style="background-color:#d9e2f3; color:#0070c0; width:157px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:137px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:209px" %)**Response**
1388 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1389 Clear all stored sensor data…
1390
1391 OK
1392 )))
1393
1394 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1395
1396 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1397
1398
1399 == 4.13 Auto Send None-ACK messages ==
1400
1401
1402 Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
1403
1404 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1405
1406 The default factory setting is 0
1407
1408 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:367px" %)
1409 |=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 87px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1410 |(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK
1411
1412 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1413
1414 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1415
1416
1417 == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm(Since firmware 1.3.0) ==
1418
1419
1420 Feature: Set internal and external temperature sensor alarms.
1421
1422 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
1423 |=(% style="width: 250px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 200px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1424 |(% style="width:268px" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|(% style="width:255px" %)Set internal and external temperature sensor alarms|(% style="width:181px" %)OK
1425
1426 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1427
1428 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1429
1430 0): Cancel
1431
1432 1): Threshold alarm
1433
1434 2): Fluctuation alarm
1435
1436
1437 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1438
1439 (% style="color:red" %)**Note: When the collection time is less than 60 seconds and always exceeds the set alarm threshold, the sending interval will not be the collection time, but will be sent every 60 seconds.**
1440
1441
1442 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1443
1444 1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1445
1446 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1447
1448
1449 2):  If Alarm Mode is set to 2: Parameter 3 is valid, which represents the difference between the currently collected temperature and the last uploaded temperature.
1450
1451 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1452
1453 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1454
1455
1456 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1457
1458 0xA5 00 ~-~- AT+WMOD=0.
1459
1460 0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
1461
1462 0XA5 01 0A F9 C0 29 04 ~-~-AT+WMOD=1,10,-16,105(Need to convert -16 to -1600 for calculation，-1600(DEC)=FFFFFFFFFFFFF9C0(HEX)  FFFFFFFFFFFFF9C0(HEX) +10000(HEX)=F9C0(HEX))
1463
1464 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1465
1466 0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
1467
1468
1469 = 5. Battery & How to replace =
1470
1471 == 5.1 Battery Type ==
1472
1473
1474 (((
1475 LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
1476 )))
1477
1478 (((
1479 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1480
1481
1482 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
1483 )))
1484
1485 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1486
1487
1488 == 5.2 Replace Battery ==
1489
1490
1491 LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
1492
1493 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
1494
1495
1496 == 5.3 Battery Life Analyze ==
1497
1498
1499 (((
1500 Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
1501 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
1502 )))
1503
1504
1505 (((
1506 A full detail test report for LHT65N on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
1507 )))
1508
1509
1510 = 6. FAQ =
1511
1512 == 6.1 How to use AT Command? ==
1513
1514
1515 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1516
1517 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1518
1519
1520 **Connection:**
1521
1522 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1523 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1524 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1525
1526 (((
1527 (% _mstmutation="1" style="color:red" %)**(Note: This pin only corresponds to the lead-out board sold by dragino company. For the lead-out board purchased by yourself, please refer to the pin description in Chapter 6.6)**
1528
1529 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**) (%%)to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1530 )))
1531
1532
1533 Input password and ATZ to activate LHT65N,As shown below:
1534
1535 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1536
1537
1538 AT Command List is as below:
1539
1540 AT+<CMD>? :  Help on <CMD>
1541
1542 AT+<CMD> :  Run <CMD>
1543
1544 AT+<CMD>=<value> :  Set the value
1545
1546 AT+<CMD>=? :  Get the value
1547
1548 AT+DEBUG:  Set more info output
1549
1550 ATZ:  Trig a reset of the MCU
1551
1552 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1553
1554 AT+DEUI:  Get or Set the Device EUI
1555
1556 AT+DADDR:  Get or Set the Device Address
1557
1558 AT+APPKEY:  Get or Set the Application Key
1559
1560 AT+NWKSKEY:  Get or Set the Network Session Key
1561
1562 AT+APPSKEY:  Get or Set the Application Session Key
1563
1564 AT+APPEUI:  Get or Set the Application EUI
1565
1566 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1567
1568 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1569
1570 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1571
1572 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1573
1574 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1575
1576 AT+RX2FQ:  Get or Set the Rx2 window frequency
1577
1578 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1579
1580 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1581
1582 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1583
1584 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1585
1586 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1587
1588 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1589
1590 AT+NWKID:  Get or Set the Network ID
1591
1592 AT+FCU:  Get or Set the Frame Counter Uplink
1593
1594 AT+FCD:  Get or Set the Frame Counter Downlink
1595
1596 AT+CLASS:  Get or Set the Device Class
1597
1598 AT+JOIN:  Join network
1599
1600 AT+NJS:  Get the join status
1601
1602 AT+SENDB:  Send hexadecimal data along with the application port
1603
1604 AT+SEND:  Send text data along with the application port
1605
1606 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1607
1608 AT+RECV:  Print last received data in raw format
1609
1610 AT+VER:  Get current image version and Frequency Band
1611
1612 AT+CFM:  Get or Set the confirmation mode (0-1)
1613
1614 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1615
1616 AT+SNR:  Get the SNR of the last received packet
1617
1618 AT+RSSI:  Get the RSSI of the last received packet
1619
1620 AT+TDC:  Get or set the application data transmission interval in ms
1621
1622 AT+PORT:  Get or set the application port
1623
1624 AT+DISAT:  Disable AT commands
1625
1626 AT+PWORD: Set password, max 9 digits
1627
1628 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1629
1630 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1631
1632 AT+PDTA:  Print the sector data from start page to stop page
1633
1634 AT+PLDTA:  Print the last few sets of data
1635
1636 AT+CLRDTA:  Clear the storage, record position back to 1st
1637
1638 AT+SLEEP:  Set sleep mode
1639
1640 AT+EXT:  Get or Set external sensor model
1641
1642 AT+BAT:  Get the current battery voltage in mV
1643
1644 AT+CFG:  Print all configurations
1645
1646 AT+WMOD:  Get or Set Work Mode
1647
1648 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1649
1650 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1651
1652 AT+SETCNT:  Set the count at present
1653
1654 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1655
1656 AT+RPL:  Get or set response level
1657
1658 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1659
1660 AT+LEAPSEC:  Get or Set Leap Second
1661
1662 AT+SYNCMOD:  Get or Set time synchronization method
1663
1664 AT+SYNCTDC:  Get or set time synchronization interval in day
1665
1666 AT+PID:  Get or set the PID
1667
1668
1669 == 6.2 Where to use AT commands and Downlink commands ==
1670
1671
1672 **AT commands: **
1673
1674 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
1675
1676
1677 **Downlink commands:**
1678
1679
1680 (% style="color:blue" %)**TTN:**
1681
1682 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1683
1684
1685
1686 (% style="color:blue" %)**Helium: **
1687
1688 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1689
1690
1691
1692 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1693
1694
1695 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1696
1697
1698 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1699
1700
1701
1702 (% style="color:blue" %)**Aws:**
1703
1704 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1705
1706
1707 == 6.3 How to change the uplink interval? ==
1708
1709
1710 Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
1711
1712
1713 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1714
1715
1716 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1717
1718 [[image:1655802313617-381.png||_mstalt="293917"]]
1719
1720
1721 (((
1722 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1723 )))
1724
1725
1726 Input password and ATZ to activate LHT65N, As shown below:
1727
1728 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1729
1730
1731 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1732
1733
1734 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1735
1736
1737 (% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1738
1739 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1740
1741
1742
1743 (% _mstmutation="1" style="color:blue" %)**Step2**(%%): wiring method.(% style="display:none" %)
1744
1745 First connect the four lines;(% style="display:none" %)
1746
1747 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]],(% style="display:none" %)
1748
1749
1750 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1751
1752 [[image:image-20220621170938-2.png||_mstalt="431704"]]
1753
1754
1755
1756 (% style="color:blue" %)**Step3: **(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1757
1758 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1759
1760
1761 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1762
1763
1764 When this interface appears, it indicates that the download has been completed.
1765
1766 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1767
1768
1769 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1770
1771
1772 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1773
1774
1775 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1776
1777
1778 **UART Port of LHT65N:**
1779
1780 * (% class="mark" %)**PB0: RXD**
1781 * (% class="mark" %)**PB1: TXD**
1782 * (% class="mark" %)**GND**
1783
1784 [[image:image-20220623112117-4.png||_mstalt="428350" height="459" width="343"]]
1785
1786
1787 (((
1788 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1789 )))
1790
1791
1792 Input password and ATZ to activate LHT65N,As shown below:
1793
1794 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1795
1796
1797 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1798
1799
1800 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1801
1802
1803 (% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1804
1805 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1806
1807
1808
1809 (% _mstmutation="1" style="color:blue" %)**Step2**(%%): wiring method.(% style="display:none" %)
1810
1811 First connect the four lines;
1812
1813 [[image:image-20220623113959-5.png||_mstalt="433485" height="528" width="397"]]
1814
1815 Connect A8 and GND with Dupont wire for a while and then separate, enter reset mode
1816
1817
1818
1819 (% style="color:blue" %)**Step3: **(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1820
1821 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1822
1823
1824 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1825
1826
1827 When this interface appears, it indicates that the download has been completed.
1828
1829 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1830
1831
1832 Finally,Disconnect 3.3v, Connect A8 and GND with Dupont wire for a while and then separate, exit reset mode
1833
1834
1835 == 6.8 Why can't I see the datalog information ==
1836
1837
1838 ~1. The time is not aligned, and the correct query command is not used.
1839
1840 2. Decoder error, did not parse the datalog data, the data was filtered.
1841
1842
1843 = 7. Order Info =
1844
1845
1846 Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1847
1848 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1849
1850 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1851 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1852 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1853 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1854 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1855 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
1856 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1857 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1858
1859 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1860
1861 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1862
1863
1864 = 8. Packing Info =
1865
1866
1867 **Package Includes**:
1868
1869 * LHT65N Temperature & Humidity Sensor x 1
1870 * Optional external sensor
1871
1872 **Dimension and weight**:
1873
1874 * Device Size:  10 x 10 x 3.5 mm
1875 * Device Weight: 120.5g
1876
1877
1878 = 9. Reference material =
1879
1880
1881 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1882
1883
1884 = 10. FCC Warning =
1885
1886
1887 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1888
1889 (1) This device may not cause harmful interference;
1890
1891 (2) this device must accept any interference received, including interference that may cause undesired operation.