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Wiki source code of DMT01

Version 6.2 by Edwin Chen on 2025/07/27 13:31
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1
2
3 [[image:1753592237986-145.png||height="354" width="118"]] [[image:1753592287802-550.png||height="237" width="341"]]
4
5
6 **Table of Contents:**
7
8 {{toc/}}
9
10 (% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)
11 (((
12 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
13 )))
14
15
16
17 = 1.  Introduction =
18
19 == 1.1 ​ What is DMT01 Wireless Meat Thermometer ==
20
21
22 The DMT01 is a (% style="color:blue" %)professional-grade wireless meat thermometer(%%) engineered for accurate, real-time temperature monitoring in commercial cooking environments. Ideal for restaurants, central kitchens, catering services, and food processing facilities, the DMT01 ensures consistent results across various cooking methods—including grilling, smoking, roasting, deep-frying, sous vide, baking, and more. Its precise monitoring helps improve cooking efficiency, ensure food safety, and meet HACCP compliance standards.
23
24 The system consists of two components:
25 - (% style="color:blue" %)Food-grade BLE High-Temperature Probe(%%) – A durable, high-heat resistant probe that measures internal food temperature during cooking.
26 - (% style="color:blue" %)Charging Base with BLE & LoRaWAN Forwarder(%%) – This base not only charges the probe but also acts as a communication bridge. It receives temperature data from the BLE probe and transmits it via the LoRaWAN long-range wireless protocol to your IoT platform or monitoring system.
27
28 With its dual wireless support (BLE for close-range accuracy and LoRaWAN for long-range data transmission), the DMT01 is ideal for both home cooking enthusiasts and commercial kitchen environments seeking smart, connected temperature monitoring.
29
30 == ​1.2  Features ==
31
32 * Wireless Meat Thermometer – Designed for accurate and reliable cooking temperature monitoring
33 * Food-Grade Probe – Safe for food contact and dishwasher-compatible for easy cleaning
34 * BLE 5.1 Broadcasting – Supports real-time local data transmission via Bluetooth Low Energy
35 * LoRaWAN Connectivity – Enables long-range, low-power data transmission to IoT platforms
36 * Smart Uplink Triggering – Supports periodic data reporting and real-time alerts on temperature thresholds
37
38 (% style="display:none" %)
39
40 == 1.3 Specification ==
41
42
43 (% style="color:blue" %)**Common DC Characteristics:**
44
45 * Supply Voltage: 90 ~~230v
46 * Operating Temperature: -40 ~~ 85°C
47
48 (% style="color:blue" %)**Food Probe Spec:**
49
50 * Food temperature range: -20 ~~120 °C, Accuracy: ±0.5°C
51 * Ambient temperature range: 0 ~~300°C, Accuracy: ±3°C
52
53 Battery Duration: 2 days per full charge
54
55
56
57 (% style="color:blue" %)**Battery:**
58
59 * Probe Battery Duration: 2 days per full charge
60
61 (% style="color:blue" %)**Power Consumption**
62
63 * **ldle: **
64 * **Transmit:**
65
66 == 1.4 ​ Applications ==
67
68
69 * Commercial Kitchen
70 Restaurant
71 Catering
72 Food Processing
73 Central Kitchen
74 Cloud Kitchen
75 HACCP Monitoring
76 Food Safety
77 Meat Factory
78 Industrial Cooking
79
80 == 1.5 Sleep mode and working mode ==
81
82
83 (% style="color:blue" %)**Deep Sleep Mode:**(%%)** **Sensor doesn't have any NB-IoT activate. This mode is used for storage and shipping to save battery life.
84
85 (% style="color:blue" %)**Working Mode:**(%%) In this mode, Sensor will work as NB-IoT Sensor to Join NB-IoT network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
86
87
88 == 1.6 Button & LEDs ==
89
90
91 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675071855856-879.png?rev=1.1||alt="1675071855856-879.png"]]
92
93 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
94 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
95 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Send an uplink|(% style="background-color:#f2f2f2; width:225px" %)(((
96 If sensor has already attached to NB-IoT network, sensor will send an uplink packet, (% style="color:blue" %)**blue led**(%%) will blink once.
97 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
98 )))
99 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
100 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to attach NB-IoT network.
101 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
102 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device attach NB-IoT network or not
103 )))
104 |(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(((
105 (% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
106 )))
107
108 == 1.7 BLE connection ==
109
110
111 POM01-NB support BLE remote configure and firmware update.
112
113 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
114
115 * Press button to send an uplink
116 * Press button to active device.
117 * Device Power on or reset.
118
119 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
120
121
122 == 1.8 Pin Definitions , Switch & SIM Direction ==
123
124
125 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-NBS31B-NB_BN-IoT_Outdoor_Temperature_Humidity_Sensor_User_Manual/WebHome/image-20230819104805-5.png?rev=1.1||alt="image-20230819104805-5.png"]]
126
127 === 1.8.1 Jumper JP2 ===
128
129 Power on Device when put this jumper.
130
131 Power off device when take out this jumper
132
133
134 === 1.8.2 BOOT MODE / SW1 ===
135
136 **1)** (% style="color:blue" %)**ISP:**(%%) upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
137
138 **2)** (% style="color:blue" %)**Flash:**(%%) work mode, device starts to work and send out console output for further debug
139
140
141 === 1.8.3 Reset Button ===
142
143 Press to reboot the device.
144
145
146 === 1.8.4 SIM Card Direction ===
147
148 See this link. [[How to insert SIM Card>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].
149
150
151 == 1.9 Mechanical ==
152
153
154 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/PS-LB%20--%20LoRaWAN%20Pressure%20Sensor/WebHome/image-20240109160800-6.png?rev=1.1||alt="image-20240109160800-6.png"]]
155
156
157 == 1.10  Hardware connection ==
158
159
160 === 1.10.1 Pins of AC detect module ===
161
162 [[image:image-20250320154706-2.png||height="180" width="499"]]
163
164 [[image:image-20250320154542-1.png||height="183" width="496"]]
165
166
167 === 1.10.2 Connection between AC detect module and POM01-NB motherboard ===
168
169 * VBAT <~-~--> VDD
170 * DATA1 <~-~--> PA8 (Tentative as interrupt pin 1)
171 * DATA2 <~-~--> PB15 (Tentative as interrupt pin 2)
172 * GND <~-~--> GND
173
174 [[image:image-20250320173553-3.png||height="409" width="602"]]
175
176 === 1.10.3 Connection between AC detect module and AC power supply(90 ~~230v) ===
177
178 * AC_N <~-~--> AC power supply N
179 * AC_L <~-~--> AC power supply L
180
181 [[image:image-20250320175924-5.png||height="231" width="770"]]
182
183
184 = 2.  Use POM01-NB to communicate with IoT Server =
185
186 == 2.1  Send data to IoT server via NB-IoT network ==
187
188 (((
189 (((
190
191 )))
192
193 The POM01-NB is equipped with a NB-IoT module, the pre-loaded firmware in POM01-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by POM01-NB.
194
195 Below shows the network structure:
196 )))
197
198
199
200 (% class="box infomessage" %)
201 (((
202 To be updated...
203 )))
204
205
206 There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1T**(%%) version of POM01-NB.
207
208 (% style="color:blue" %)**GE Version:**(%%) This version doesn't include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set POM01-NB send data to IoT server.
209
210 * Install NB-IoT SIM card and configure APN. See instruction of [[Attach Network>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].
211
212 * Set up sensor to point to IoT Server. See instruction of [[Configure to Connect Different Servers>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.Configuretoconnecttodifferentservers]]. 
213
214 Below shows result of different server as a glance.
215
216 (% border="1" cellspacing="3" style="width:515px" %)
217 |(% style="background-color:#4f81bd; color:white; width:100px" %)**Servers**|(% style="background-color:#4f81bd; color:white; width:300px" %)**Dash Board**|(% style="background-color:#4f81bd; color:white; width:115px" %)**Comments**
218 |(% style="width:127px" %)[[Node-Red>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.5A0Node-RedA028viaA0MQTT29]]|(% style="width:385px" %)[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-NBS31B-NB_BN-IoT_Outdoor_Temperature_Humidity_Sensor_User_Manual/WebHome/image-20230819113244-8.png?width=367&height=183&rev=1.1||alt="image-20230819113244-8.png"]](((
219
220 )))|(% style="width:170px" %)
221 |(% style="width:127px" %)[[DataCake>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]]|(% style="width:385px" %)[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-NBS31B-NB_BN-IoT_Outdoor_Temperature_Humidity_Sensor_User_Manual/WebHome/image-20230819113244-9.png?width=367&height=119&rev=1.1||alt="image-20230819113244-9.png"]](((
222
223 )))|(% style="width:170px" %)
224 |(% style="width:127px" %)[[Tago.IO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.7A0Tago.ioA028viaA0MQTT29]]|(% style="width:385px" %) |(% style="width:170px" %)
225 |(% style="width:127px" %)[[General UDP>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.1GeneralA0UDPA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)
226 |(% style="width:127px" %)[[General MQTT>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.2GeneralA0MQTTA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)
227 |(% style="width:127px" %)[[ThingSpeak>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.3A0ThingSpeakA028viaA0MQTT29]]|(% style="width:385px" %)[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-NBS31B-NB_BN-IoT_Outdoor_Temperature_Humidity_Sensor_User_Manual/WebHome/image-20230819113244-10.png?width=367&height=104&rev=1.1||alt="image-20230819113244-10.png"]](((
228
229 )))|(% style="width:170px" %)
230 |(% style="width:127px" %)[[ThingsBoard>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.6A0ThingsBoard.CloudA028viaA0MQTT29]]|(% style="width:385px" %)[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-NBS31B-NB_BN-IoT_Outdoor_Temperature_Humidity_Sensor_User_Manual/WebHome/image-20230819113244-11.png?width=367&height=141&rev=1.1||alt="image-20230819113244-11.png"]](((
231
232 )))|(% style="width:170px" %)
233
234 (% style="color:blue" %)**1T Version**(%%): This version has 1NCE SIM card pre-installed and configure to send value to ThingsEye. User Just need to select the sensor type in ThingsEyeand Activate POM01-NB and user will be able to see data in ThingsEye. See here for [[ThingsEye Config Instruction>>url:https://wiki.thingseye.io/xwiki/bin/view/Main/]].
235
236
237 == 2.2 ​Payload Types ==
238
239
240 To meet different server requirement, POM01-NB supports different payload type.
241
242 **Includes:**
243
244 * [[General JSON format payload>>||anchor="H2.2.1GeneralJsonFormat28Type3D529"]]. (Type=5)
245
246 * [[HEX format Payload>>||anchor="H2.2.2HEXformatPayload28Type3D029"]]. (Type=0)
247
248 * [[ThingSpeak Format>>||anchor="H2.2.4ThingSpeakPayload28Type3D129"]]. (Type=1)
249
250 * [[ThingsBoard Format>>||anchor="H2.2.3ThingsBoardPayload28Type3D329"]]. (Type=3)
251
252 User can specify the payload type when choose the connection protocol. Example:
253
254
255 (% style="color:#037691" %)**AT+PRO=1,0**  (%%) ~/~/ Use COAP Connection & hex Payload
256
257 (% style="color:#037691" %)**AT+PRO=1,5**   (%%) ~/~/ Use COAP Connection & Json Payload
258
259 (% style="color:#037691" %)**AT+PRO=2,0**  (%%) ~/~/ Use UDP Connection & hex Payload
260
261 (% style="color:#037691" %)**AT+PRO=2,5**   (%%) ~/~/ Use UDP Connection & Json Payload
262
263 (% style="color:#037691" %)**AT+PRO=3,0**  (%%) ~/~/ Use MQTT Connection & hex Payload
264
265 (% style="color:#037691" %)**AT+PRO=3,5 ** (%%) ~/~/ Use MQTT Connection & Json Payload
266
267 (% style="color:#037691" %)**AT+PRO=4,0**  (%%) ~/~/ Use TCP Connection & hex Payload
268
269 (% style="color:#037691" %)**AT+PRO=4,5 ** (%%) ~/~/ Use TCP Connection & Json Payload
270
271
272 === 2.2.1 General Json Format(Type~=5) ===
273
274 (% class="box infomessage" %)
275 (((
276 To be updated...
277 )))
278
279
280 === 2.2.2 HEX format Payload(Type~=0) ===
281
282 (% class="box infomessage" %)
283 (((
284 To be updated...
285 )))
286
287
288
289
290 = 3. Configure POM01-NB =
291
292 == 3.1 Configure Methods ==
293
294
295 POM01-NB supports below configure method:
296
297 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
298
299 * AT Command via UART Connection : See [[UART Connection>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
300
301 == ​​​3.2  Serial Access Password ==
302
303
304 After the Bluetooth or UART connection is successful, use the Serial Access Password to enter the AT command window.
305
306 The label on the box of the node will print the initial password: AT+PIN=**xxxxxx**, and directly use the six-digit password to access the AT instruction window.
307
308 (((
309 (((
310 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-NB%2C-NS_RS485%2CUART_to_NB-IoT_Converter_User_Manual/WebHome/image-20250226165815-1.png?rev=1.1||alt="image-20250226165815-1.png"]]
311 )))
312
313 (((
314 (% title="Click and drag to resize" %)​(%%)If you need to change the password, use **AT+PWORD=**xxxxxx (6 characters), -CB nodes only support lowercase letters.
315
316 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-CBS31B-CB--NB-IoTLTE-M_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20240826183254-2.png?rev=1.1||alt="image-20240826183254-2.png"]]
317
318 (% style="color:red" %)**Note: After entering the command, you need to add a line break, and you can also set automatic line breaks in the Bluetooth tool or UART connection tool.**
319
320 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-CBS31B-CB--NB-IoTLTE-M_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20240826183302-3.png?rev=1.1||alt="image-20240826183302-3.png"]]
321
322
323 == 3.3 AT Commands Set ==
324
325
326 (% class="box infomessage" %)
327 (((
328 To be updated...
329 )))
330 )))
331 )))
332
333
334 = 4. Battery & Power Consumption =
335
336
337 LPOM01-NB use ER26500 + SPC1520 battery pack and POM01-NB use 3000mAh Recharable Battery with Solar Panel. See below link for detail information about the battery info and how to replace.
338
339 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
340
341
342 = 5. Firmware update =
343
344
345 User can change device firmware to:
346
347 * Update with new features.
348
349 * Fix bugs.
350
351 Firmware and changelog can be downloaded from : **Firmware download link **(% class="mark" %)(To be updated...)
352
353 Methods to Update Firmware:
354
355 * (Recommended way) OTA firmware update via BLE: [[**Instruction**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE_Firmware_Update_NB_Sensors_BC660K-GL/]].
356
357 * Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART_Access_for_NB_ST_BC660K-GL/#H4.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]**.
358
359 (((
360
361 )))
362
363 = 6.  FAQ =
364
365 == 6.1 How can I access the BC660K-GL AT Commands? ==
366
367
368 User can access to BC660K-GL directly and send AT Commands.
369
370 [[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]
371
372
373 = 7.  Order Info =
374
375
376 Part Number: (% style="color:blue" %)**POM01-NB-XX**
377
378 (% style="color:red" %)**XX:**
379
380 * (% style="color:#037691" %)**GE: **(%%)General version ( Exclude SIM card)
381
382 * (% style="color:#037691" %)**1T:**(%%) with 1NCE * 10 years 500MB SIM card and Pre-configure to ThingsEye server
383
384 = 8. ​ Packing Info =
385
386
387 (% style="color:#037691" %)**Package Includes:**
388
389 * POM01-NB NB-IoT Power Outage Monitoring Sensor x 1
390
391 (% style="color:#037691" %)**Dimension and weight:**
392
393 * Device Size: cm
394 * Device Weight: g
395 * Package Size / pcs : cm
396 * Weight / pcs : g
397
398 = 9.  ​Support =
399
400
401 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
402 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].