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Author

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1		-XWiki.Edwin
	1	+XWiki.Lu

Content

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1		-{{box cssClass="floatinginfobox" title="**Contents**"}}
	1	+0
	2	+
	3	+**Table of Contents:**
	4	+
2	2	{{toc/}}
3		-{{/box}}
4	4
5		-= LA66 LoRaWAN Module =
6	6
7		-== What is LA66 LoRaWAN Module ==
8	8
	9	+= 1.  LA66 LoRaWAN Module =
	10	+
	11	+
	12	+== 1.1  What is LA66 LoRaWAN Module ==
	13	+
	14	+
	15	+(((
	16	+(((
	17	+[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
	18	+)))
	19	+
	20	+(((
	21	+
	22	+)))
	23	+
	24	+(((
9	9	(% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
	26	+)))
	27	+)))
10	10
11		-(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
	29	+(((
	30	+(((
	31	+(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
	32	+)))
	33	+)))
12	12
	35	+(((
	36	+(((
13	13	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
	38	+)))
14	14
	40	+(((
15	15	Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
	42	+)))
	43	+)))
16	16
	45	+(((
	46	+(((
17	17	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
	48	+)))
	49	+)))
18	18
19	19
20		-== Features ==
21	21
	53	+== 1.2  Features ==
	54	+
22	22	* Support LoRaWAN v1.0.4 protocol
23	23	* Support peer-to-peer protocol
24	24	* TCXO crystal to ensure RF performance on low temperature
...	...	@@ -29,10 +29,8 @@
29	29	* Firmware upgradable via UART interface
30	30	* Ultra-long RF range
31	31
	65	+== 1.3  Specification ==
32	32
33		-
34		-== Specification ==
35		-
36	36	* CPU: 32-bit 48 MHz
37	37	* Flash: 256KB
38	38	* RAM: 64KB
...	...	@@ -51,221 +51,530 @@
51	51	* LoRa Rx current: <9 mA
52	52	* I/O Voltage: 3.3v
53	53
54		-== AT Command ==
	85	+== 1.4  AT Command ==
55	55
	87	+
56	56	AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
57	57
58	58
59		-== Dimension ==
60	60
61		-[[image:image-20220517072526-1.png]]
	92	+== 1.5  Dimension ==
62	62
	94	+[[image:image-20220718094750-3.png]]
63	63
64		-== Pin Mapping ==
65	65
66		-[[image:image-20220523101537-1.png]]
67	67
68		-== Land Pattern ==
	98	+== 1.6  Pin Mapping ==
69	69
	100	+[[image:image-20220720111850-1.png]]
	101	+
	102	+
	103	+
	104	+== 1.7  Land Pattern ==
	105	+
70	70	[[image:image-20220517072821-2.png]]
71	71
72	72
73		-== Part Number ==
74	74
75		-Part Number: **LA66-XXX**
	110	+= 2.  LA66 LoRaWAN Shield =
76	76
77		-**XX**: The default frequency band
78	78
79		-* **AS923**: LoRaWAN AS923 band
80		-* **AU915**: LoRaWAN AU915 band
81		-* **EU433**: LoRaWAN EU433 band
82		-* **EU868**: LoRaWAN EU868 band
83		-* **KR920**: LoRaWAN KR920 band
84		-* **US915**: LoRaWAN US915 band
85		-* **IN865**: LoRaWAN IN865 band
86		-* **CN470**: LoRaWAN CN470 band
87		-* **PP**: Peer to Peer LoRa Protocol
	113	+== 2.1  Overview ==
88	88
89		-= LA66 LoRaWAN Shield =
90	90
91		-LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
	116	+(((
	117	+[[image:image-20220715000826-2.png||height="145" width="220"]]
	118	+)))
92	92
93		-== Pin Mapping & LED ==
	120	+(((
	121	+
	122	+)))
94	94
95		-== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
	124	+(((
	125	+(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
	126	+)))
96	96
97		-== Example: Join TTN network and send an uplink message, get downlink message. ==
	128	+(((
	129	+(((
	130	+(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely.  This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
	131	+)))
	132	+)))
98	98
99		-== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
	134	+(((
	135	+(((
	136	+Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
	137	+)))
	138	+)))
100	100
101		-== Upgrade Firmware of LA66 LoRaWAN Shield ==
	140	+(((
	141	+(((
	142	+Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
	143	+)))
	144	+)))
102	102
103		-=== what needs to be used ===
	146	+(((
	147	+(((
	148	+LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
	149	+)))
	150	+)))
104	104
105		-1.LA66 LoRaWAN Shield that needs to be upgraded
106	106
107		-2.Arduino
108	108
109		-3.USB TO TTL
	154	+== 2.2  Features ==
110	110
111		-[[image:image-20220602100052-2.png]]
	156	+* Arduino Shield base on LA66 LoRaWAN module
	157	+* Support LoRaWAN v1.0.4 protocol
	158	+* Support peer-to-peer protocol
	159	+* TCXO crystal to ensure RF performance on low temperature
	160	+* SMA connector
	161	+* Available in different frequency LoRaWAN frequency bands.
	162	+* World-wide unique OTAA keys.
	163	+* AT Command via UART-TTL interface
	164	+* Firmware upgradable via UART interface
	165	+* Ultra-long RF range
112	112
113		-=== Wiring Schematic ===
	167	+== 2.3  Specification ==
114	114
115		-[[image:image-20220602101311-3.png]]
	169	+* CPU: 32-bit 48 MHz
	170	+* Flash: 256KB
	171	+* RAM: 64KB
	172	+* Input Power Range: 1.8v ~~ 3.7v
	173	+* Power Consumption: < 4uA.
	174	+* Frequency Range: 150 MHz ~~ 960 MHz
	175	+* Maximum Power +22 dBm constant RF output
	176	+* High sensitivity: -148 dBm
	177	+* Temperature:
	178	+** Storage: -55 ~~ +125℃
	179	+** Operating: -40 ~~ +85℃
	180	+* Humidity:
	181	+** Storage: 5 ~~ 95% (Non-Condensing)
	182	+** Operating: 10 ~~ 95% (Non-Condensing)
	183	+* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	184	+* LoRa Rx current: <9 mA
	185	+* I/O Voltage: 3.3v
116	116
117		-LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
	187	+== 2.4  Pin Mapping & LED ==
118	118
119		-GND  >>>>>>>>>>>>GND
120	120
121		-TXD  >>>>>>>>>>>>TXD
122	122
123		-RXD  >>>>>>>>>>>>RXD
	191	+== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
124	124
125		-JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
126	126
127		-Connect to the PC after connecting the wires
128	128
129		-[[image:image-20220602102240-4.png]]
	195	+== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
130	130
131		-=== Upgrade steps ===
132	132
133		-==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
134	134
135		-[[image:image-20220602102824-5.png]]
	199	+== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
136	136
137		-==== Press the RST switch on the LA66 LoRaWAN Shield once ====
138	138
139		-[[image:image-20220602104701-12.png]]
140	140
141		-==== Open the upgrade application software ====
	203	+== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
142	142
143		-Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]
144	144
	206	+=== 2.8.1  Items needed for update ===
	207	+
	208	+1. LA66 LoRaWAN Shield
	209	+1. Arduino
	210	+1. USB TO TTL Adapter
	211	+
	212	+[[image:image-20220602100052-2.png||height="385" width="600"]]
	213	+
	214	+
	215	+=== 2.8.2  Connection ===
	216	+
	217	+
	218	+[[image:image-20220602101311-3.png||height="276" width="600"]]
	219	+
	220	+
	221	+(((
	222	+(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
	223	+)))
	224	+
	225	+(((
	226	+(% style="background-color:yellow" %)**GND  <-> GND
	227	+TXD  <->  TXD
	228	+RXD  <->  RXD**
	229	+)))
	230	+
	231	+
	232	+Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
	233	+
	234	+Connect USB TTL Adapter to PC after connecting the wires
	235	+
	236	+
	237	+[[image:image-20220602102240-4.png||height="304" width="600"]]
	238	+
	239	+
	240	+=== 2.8.3  Upgrade steps ===
	241	+
	242	+
	243	+==== 1.  Switch SW1 to put in ISP position ====
	244	+
	245	+
	246	+[[image:image-20220602102824-5.png||height="306" width="600"]]
	247	+
	248	+
	249	+
	250	+==== 2.  Press the RST switch once ====
	251	+
	252	+
	253	+[[image:image-20220602104701-12.png||height="285" width="600"]]
	254	+
	255	+
	256	+
	257	+==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
	258	+
	259	+
	260	+(((
	261	+(% style="color:blue" %)**1. Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]**
	262	+)))
	263	+
	264	+
145	145	[[image:image-20220602103227-6.png]]
146	146
	267	+
147	147	[[image:image-20220602103357-7.png]]
148	148
149		-===== Select the COM port corresponding to USB TTL =====
150	150
	271	+
	272	+(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
	273	+(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
	274	+
	275	+
151	151	[[image:image-20220602103844-8.png]]
152	152
153		-===== Select the bin file to burn =====
154	154
	279	+
	280	+(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
	281	+(% style="color:blue" %)**3. Select the bin file to burn**
	282	+
	283	+
155	155	[[image:image-20220602104144-9.png]]
156	156
	286	+
157	157	[[image:image-20220602104251-10.png]]
158	158
	289	+
159	159	[[image:image-20220602104402-11.png]]
160	160
161		-===== Click to start the download =====
162	162
	293	+
	294	+(% class="wikigeneratedid" id="HClicktostartthedownload" %)
	295	+(% style="color:blue" %)**4. Click to start the download**
	296	+
163	163	[[image:image-20220602104923-13.png]]
164	164
165		-===== The following figure appears to prove that the burning is in progress =====
166	166
	300	+
	301	+(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
	302	+(% style="color:blue" %)**5. Check update process**
	303	+
	304	+
167	167	[[image:image-20220602104948-14.png]]
168	168
169		-===== The following picture appears to prove that the burning is successful =====
170	170
	308	+
	309	+(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
	310	+(% style="color:blue" %)**The following picture shows that the burning is successful**
	311	+
171	171	[[image:image-20220602105251-15.png]]
172	172
173		-= LA66 USB LoRaWAN Adapter =
174	174
175		-LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
176	176
177		-Before use, please make sure that the computer has installed the CP2102 driver
	316	+= 3.  LA66 USB LoRaWAN Adapter =
178	178
179		-== Pin Mapping & LED ==
180	180
181		-== Example Send & Get Messages via LoRaWAN in PC ==
	319	+== 3.1  Overview ==
182	182
183		-Connect the LA66 LoRa Shield to the PC
184	184
185		-[[image:image-20220602171217-1.png||height="615" width="915"]]
	322	+[[image:image-20220715001142-3.png||height="145" width="220"]]
186	186
	324	+
	325	+(((
	326	+(% style="color:blue" %)**LA66 USB LoRaWAN Adapter**(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
	327	+)))
	328	+
	329	+(((
	330	+(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
	331	+)))
	332	+
	333	+(((
	334	+Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
	335	+)))
	336	+
	337	+(((
	338	+Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
	339	+)))
	340	+
	341	+(((
	342	+LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
	343	+)))
	344	+
	345	+
	346	+
	347	+== 3.2  Features ==
	348	+
	349	+* LoRaWAN USB adapter base on LA66 LoRaWAN module
	350	+* Ultra-long RF range
	351	+* Support LoRaWAN v1.0.4 protocol
	352	+* Support peer-to-peer protocol
	353	+* TCXO crystal to ensure RF performance on low temperature
	354	+* Spring RF antenna
	355	+* Available in different frequency LoRaWAN frequency bands.
	356	+* World-wide unique OTAA keys.
	357	+* AT Command via UART-TTL interface
	358	+* Firmware upgradable via UART interface
	359	+* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
	360	+
	361	+== 3.3  Specification ==
	362	+
	363	+* CPU: 32-bit 48 MHz
	364	+* Flash: 256KB
	365	+* RAM: 64KB
	366	+* Input Power Range: 5v
	367	+* Frequency Range: 150 MHz ~~ 960 MHz
	368	+* Maximum Power +22 dBm constant RF output
	369	+* High sensitivity: -148 dBm
	370	+* Temperature:
	371	+** Storage: -55 ~~ +125℃
	372	+** Operating: -40 ~~ +85℃
	373	+* Humidity:
	374	+** Storage: 5 ~~ 95% (Non-Condensing)
	375	+** Operating: 10 ~~ 95% (Non-Condensing)
	376	+* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	377	+* LoRa Rx current: <9 mA
	378	+
	379	+== 3.4  Pin Mapping & LED ==
	380	+
	381	+
	382	+
	383	+== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
	384	+
	385	+
	386	+(((
	387	+Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
	388	+)))
	389	+
	390	+
	391	+(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
	392	+
	393	+
	394	+[[image:image-20220723100027-1.png]]
	395	+
	396	+
187	187	Open the serial port tool
188	188
189	189	[[image:image-20220602161617-8.png]]
190	190
191		-[[image:image-20220602161718-9.png||height="529" width="927"]]
	401	+[[image:image-20220602161718-9.png||height="457" width="800"]]
192	192
193		-Press the reset switch RST on the LA66 LoRa Shield.
194	194
195		-The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
196	196
197		-[[image:image-20220602161935-10.png]]
	405	+(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
198	198
199		-send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	407	+The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
200	200
	409	+
	410	+[[image:image-20220602161935-10.png||height="498" width="800"]]
	411	+
	412	+
	413	+
	414	+(% style="color:blue" %)**3. See Uplink Command**
	415	+
	416	+Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
	417	+
201	201	example: AT+SENDB=01,02,8,05820802581ea0a5
202	202
203		-[[image:image-20220602162157-11.png]]
	420	+[[image:image-20220602162157-11.png||height="497" width="800"]]
204	204
205		-Check to see if TTN received the message
206	206
207		-[[image:image-20220602162331-12.png||height="547" width="1044"]]
208	208
209		-== Example Send & Get Messages via LoRaWAN in RPi ==
	424	+(% style="color:blue" %)**4. Check to see if TTN received the message**
210	210
211		-Connect the LA66 LoRa Shield to the RPI
	426	+[[image:image-20220602162331-12.png||height="420" width="800"]]
212	212
213		-[[image:image-20220602171233-2.png||height="592" width="881"]]
214	214
215		-Log in to the RPI's terminal and connect to the serial port
216	216
217		-[[image:image-20220602153146-3.png]]
	430	+== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
218	218
219		-Press the reset switch RST on the LA66 LoRa Shield.
220		-The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
221	221
222		-[[image:image-20220602154928-5.png]]
	433	+**Use python as an example：**[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
223	223
224		-send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	435	+(**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
225	225
	437	+(% style="color:red" %)**Preconditions:**
	438	+
	439	+(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
	440	+
	441	+(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
	442	+
	443	+
	444	+
	445	+(% style="color:blue" %)**Steps for usage:**
	446	+
	447	+(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	448	+
	449	+(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
	450	+
	451	+[[image:image-20220602115852-3.png||height="450" width="1187"]]
	452	+
	453	+
	454	+
	455	+== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
	456	+
	457	+
	458	+Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
	459	+
	460	+
	461	+(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
	462	+
	463	+[[image:image-20220723100439-2.png]]
	464	+
	465	+
	466	+
	467	+(% style="color:blue" %)**2. Install Minicom in RPi.**
	468	+
	469	+(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
	470	+
	471	+ (% style="background-color:yellow" %)**apt update**
	472	+
	473	+ (% style="background-color:yellow" %)**apt install minicom**
	474	+
	475	+
	476	+Use minicom to connect to the RPI's terminal
	477	+
	478	+[[image:image-20220602153146-3.png||height="439" width="500"]]
	479	+
	480	+
	481	+
	482	+(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
	483	+
	484	+The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	485	+
	486	+
	487	+[[image:image-20220602154928-5.png||height="436" width="500"]]
	488	+
	489	+
	490	+
	491	+(% style="color:blue" %)**4. Send Uplink message**
	492	+
	493	+Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
	494	+
226	226	example: AT+SENDB=01,02,8,05820802581ea0a5
227	227
228		-[[image:image-20220602160339-6.png]]
229	229
	498	+[[image:image-20220602160339-6.png||height="517" width="600"]]
	499	+
	500	+
	501	+
230	230	Check to see if TTN received the message
231	231
232		-[[image:image-20220602160627-7.png||height="468" width="1013"]]
	504	+[[image:image-20220602160627-7.png||height="369" width="800"]]
233	233
234		-=== Install Minicom ===
235	235
236		-Enter the following command in the RPI terminal
237	237
238		-apt update
	508	+== 3.8  Example: Use of LA66 USB LoRaWAN Module and DRAGINO-LA66-APP. ==
239	239
240		-[[image:image-20220602143155-1.png]]
	510	+=== 3.8.1 DRAGINO-LA66-APP ===
241	241
242		-apt install minicom
	512	+[[image:image-20220723102027-3.png]]
243	243
244		-[[image:image-20220602143744-2.png]]
	514	+==== Overview： ====
245	245
246		-=== Send PC's CPU/RAM usage to TTN via script. ===
	516	+DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Module. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Module.
247	247
248		-==== Take python as an example： ====
	518	+View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
249	249
250		-===== Preconditions: =====
	520	+==== Conditions of Use： ====
251	251
252		-1.LA66 USB LoRaWAN Adapter works fine
	522	+Requires a type-c to USB adapter
253	253
254		-2.LA66 USB LoRaWAN Adapter  is registered with TTN
	524	+[[image:image-20220723104754-4.png]]
255	255
256		-===== Steps for usage =====
	526	+==== Use of APP: ====
257	257
258		-1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	528	+Function and page introduction
259	259
260		-2.Run the script and see the TTN
	530	+[[image:image-20220723113448-7.png||height="1481" width="670"]]
261	261
262		-[[image:image-20220602115852-3.png]]
	532	+1.Display LA66 USB LoRaWAN Module connection status
263	263
	534	+2.Check and reconnect
264	264
	536	+3.Turn send timestamps on or off
265	265
266		-== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
	538	+4.Display LoRaWan connection status
267	267
	540	+5.Check LoRaWan connection status
268	268
269		-== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
	542	+6.The RSSI value of the node when the ACK is received
270	270
271		-
	544	+7.Node's Signal Strength Icon
	545	+
	546	+8.Set the packet sending interval of the node in seconds
	547	+
	548	+9.AT command input box
	549	+
	550	+10.Send AT command button
	551	+
	552	+11.Node log box
	553	+
	554	+12.clear log button
	555	+
	556	+13.exit button
	557	+
	558	+LA66 USB LoRaWAN Module not connected
	559	+
	560	+[[image:image-20220723110520-5.png||height="903" width="677"]]
	561	+
	562	+Connect LA66 USB LoRaWAN Module
	563	+
	564	+[[image:image-20220723110626-6.png||height="906" width="680"]]
	565	+
	566	+=== 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Module and integrate it into Node-RED ===
	567	+
	568	+1.Register LA66 USB LoRaWAN Module to TTNV3
	569	+
	570	+[[image:image-20220723134549-8.png]]
	571	+
	572	+2.Open Node-RED,And import the JSON file to generate the flow
	573	+
	574	+Sample JSON file please go to this link to download：放置JSON文件的链接
	575	+
	576	+For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
	577	+
	578	+The following is the positioning effect map
	579	+
	580	+[[image:image-20220723144339-1.png]]
	581	+
	582	+== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
	583	+
	584	+The LA66 USB LoRaWAN Module is the same as the LA66 LoRaWAN Shield update method
	585	+
	586	+Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
	587	+
	588	+[[image:image-20220723150132-2.png]]
	589	+
	590	+
	591	+= 4.  Order Info =
	592	+
	593	+
	594	+**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
	595	+
	596	+
	597	+(% style="color:blue" %)**XXX**(%%): The default frequency band
	598	+
	599	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	600	+* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
	601	+* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
	602	+* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
	603	+* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
	604	+* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
	605	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	606	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
	607	+* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
	608	+
	609	+= 5.  Reference =
	610	+
	611	+* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]

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