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Wiki source code of DMT01

Version 35.1 by Mengting Qiu on 2025/08/04 17:11
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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/}}
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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 ((% style="color:blue" %)BLE for close-range/small design(%%) and (% style="color:blue" %)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: +5v via USB Type-C
46 * Operating Temperature:
47
48 (% style="color:blue" %)**Food Probe Spec:**
49
50 * Length: 126mm
51 * Diameter: 6mm
52 * Food temperature: -30 ~~110 °C, Accuracy: ±0.5°C
53 * Ambient temperature: 0 ~~380°C, Accuracy: ±5°C
54 * Wireless: BLE 5.1
55 * Distance: ≥ 30m
56 * Battery: 4mAh
57 * Recharge time: ＜ 2 hours
58 * Battery Duration: ＞30 hours
59 * IP Rate: IP67, Dish Washer proof
60
61
62
63 (% style="color:blue" %)**Charger Spec:**
64
65 * BLE v5.1 + LoRaWAN
66 * Power Input: USB Type-C, +5v
67 * Battery: Li-ion , 3000mAh
68 * Recharge time: ＜ 2 hours
69
70
71
72
73 == 1.4 ​ Applications ==
74
75 * Commercial Kitchen
76 * Restaurant
77 * Catering
78 * Food Processing
79 * Central Kitchen
80 * Cloud Kitchen
81 * HACCP Monitoring
82 * Food Safety
83 * Meat Factory
84 * Industrial Cooking
85
86 == 1.5 Product Apperance ==
87
88 (% class="wikigeneratedid" %)
89 [[image:1753594523550-152.png||height="462" width="416"]]
90
91
92 == 1.6  Working mode ==
93
94
95 (% style="color:blue" %)**Deep Sleep Mode:**(%%)** **Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
96
97 (% style="color:blue" %)**Working Mode:**(%%) In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN 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.
98
99
100 == 1.7 LED Status ==
101
102
103 The DMT01 uses a dual-color LED to indicate system status:
104
105 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
106 |(% style="background-color:#4f81bd; color:white; width:196px" %)**LED Behavior**|(% style="background-color:#4f81bd; color:white; width:305px" %)**Description**
107 |(% style="width:196px" %)Green breathing effect|(% style="width:305px" %)Probe is inserted and charging
108 (LED turns off immediately when probe is removed)
109 |(% style="width:196px" %)Red solid (5 seconds)|(% style="width:305px" %)Mode switched successfully (after 1-3s button press)
110 |(% style="width:196px" %)Red blinking (15 seconds)|(% style="width:305px" %)Charging base low battery (<15% capacity)
111 |(% style="width:196px" %)Red/Green alternating blink (3 seconds)|(% style="width:305px" %)Device reset in progress (after 3s long press)   
112 |(% style="width:196px" %)Single green blink|(% style="width:305px" %)BLE connection established between probe and base
113
114
115
116 == 1.8 Button Function ==
117
118 [[image:1754120439617-600.jpg||height="404" width="404"]]
119
120 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:536.222px" %)
121 |=(% style="width: 147px; background-color: rgb(79, 129, 189); color: white;" %)**Behavior on ACT**|=(% style="width: 130px; background-color: rgb(79, 129, 189); color: white;" %)**Function**|=(% style="width: 254px; background-color: rgb(79, 129, 189); color: white;" %)**Action**
122 |(% style="background-color:#f2f2f2; width:147px" %) [[image:1754045287749-587.png]]>3s|(% style="background-color:#f2f2f2; width:130px" %)Active Device|(% style="background-color:#f2f2f2; width:254px" %)(((
123 Red/Green alternating blink (3 seconds), DMT01 will enter working mode and start to JOIN LoRaWAN network.
124 When the probe is placed in the repeater to charge, the green LED above the relay box will have a breathing effect. When the probe is taken out, the LED light will go out.
125 )))
126 |(% style="background-color:#f2f2f2; width:147px" %)[[image:1754045287749-587.png]] 1~~3s|(% style="background-color:#f2f2f2; width:130px" %)Switch working mode|(% style="background-color:#f2f2f2; width:254px" %)(((
127 There are three operating modes:
128 Default LoRaWAN and Bluetooth broadcast mode,
129 Separate LoRaWAN mode
130
131 Separate Bluetooth broadcast mode.
132 (% style="color:red" %)**Note:**(%%) To switch modes, remove the probe and press the button; otherwise, the mode will not switch.
133 )))
134
135
136
137 == 1.9 Power on device and Recharge Probe ==
138
139
140
141
142 = 2.  Use DMT01 =
143
144 == 2.1  How it works ==
145
146 (((
147 (((
148
149
150 DMT01 Include two parts,
151
152 1. The food grade probe : used to measure the meat temperature
153 1. The Charger which is also a LoRaWAN End node: used to connect the probe via BLE and get the temperature and send via LoRaWAN to IoT server.
154
155
156
157 Consider the BLE coverage , there is two cases:
158
159 === **Connection Mode: Probe is near by the Charge, within BLE range** ===
160
161 Probe will establish connection to the charge via BLE.  and the data flow is as below.
162 )))
163
164 [[image:1753622303925-386.png]]
165
166
167 === **Broadcast Mode: Probe is far away from the Charge, out of BLE range** ===
168
169 Probe will auto swtich to BLE broadcast mode and broadcast the data via BLE. Any BLE Scaner can pick up the signal and send to IoT server.
170
171 For example:
172
173 1) User can use BH01 BLE to LoRaWAN converter to pick up the BLE signal to IoT Server
174
175 2) User can use Mobile phone to get the broadcast signal and further process.
176
177
178 == 2.2 Activate Device ==
179
180 To use DMT01 send data to LoRaWAN network, user need to:
181
182 1. Input the OTAA Keys in LoRaWAN Network Server
183 1. Make sure there is LoraWAN network
184 1. Press the button on the DMT01 for more than 3 seconds, DMT01 will start to connect to LoRaWAN network
185
186
187
188 After the DMT01 Join LoRaWAN network, once user take out the probe, the probe will start to measure temperature and user will be to see the data on the server.
189 )))
190
191
192 == 2.2  How it works? ==
193
194 (((
195 (((
196
197 )))
198
199 The DMT01 is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DMT01. It will automatically join the network via OTAA and start to send the sensor value.
200
201 (((
202 On each uplink, DMT01 will get the temperature from the sensor and send it to the server.
203 )))
204 )))
205
206
207 == 2.3 ​Quick guide to connect to LoRaWAN server (OTAA) ==
208
209
210 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
211
212 The LPS8V2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
213
214 [[image:1754298519453-808.jpg||height="211" width="951"]]
215
216
217 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DMT01.
218
219 Each DMT01 is shipped with a sticker with the default device EUI as below:
220
221 [[image:1754298588891-599.jpeg]](% style="display:none" %)
222
223 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:(% style="display:none" %)
224
225 (% style="color:blue" %)**Create the application.**
226
227 [[image:image-20240907111048-1.png||height="183" width="1001"]]
228
229 [[image:image-20240907111305-2.png||height="572" width="1000"]]
230
231 (% style="color:blue" %)**Add devices to the created Application.**
232
233 [[image:image-20240907111659-3.png||height="185" width="977"]]
234
235 [[image:image-20240907111820-5.png||height="377" width="975"]]
236
237 (% style="color:blue" %)**Enter end device specifics manually.**
238
239 [[image:image-20240907112136-6.png||height="687" width="697"]]
240
241 (% style="color:blue" %)**Add DevEUI and AppKey.**
242
243 (% style="color:blue" %)**Customize a platform ID for the device.**
244
245 [[image:image-20240907112427-7.png]]
246
247
248 (% style="color:blue" %)**Step 2: **(%%)Add decoder
249
250 In TTN, user can add a custom payload so it shows friendly reading.
251
252 Click this link to get the decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/]]
253
254 Below is TTN screen shot:
255
256 [[image:image-20240907113746-8.png||height="567" width="1166"]]
257
258 [[image:image-20240907115849-10.png||height="615" width="1038"]]
259
260 (% style="color:blue" %)**Step 3:**(%%) Activate on DMT01
261
262 Press the button for 3 seconds to activate the DMT01.
263
264 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
265
266 [[image:1754298481895-828.png||height="525" width="1650"]]
267
268
269
270 == 2.3 LoRaWAN Payload ==
271
272
273
274 == 2.4 Bluetoothe Broadcast Payload ==
275
276
277
278
279
280 = 3. Configure DMT01  ~-~- 需要修改 =
281
282 == 3.1 Configure Methods ==
283
284 User can use LoRaWAN downlink command to configure the DMT01
285
286 (((
287 (((
288 == 3.2 Downlink Commands Set ==
289
290
291 (% class="box infomessage" %)
292 (((
293 To be updated...
294 )))
295 )))
296 )))
297
298
299 = 4. Firmware update =
300
301
302 **Firmware download link **(% class="mark" %)(To be updated...)
303
304 User can upgrade the firmware for DMT01 charger. The charger include two piece of software:
305
306 * For LoRa part: OTA firmware update via LoRa:.
307
308 * For BLE and controller part.
309
310 == 4.1 Update LoRa software ==
311
312
313 == 4.2 Update BLE software ==
314
315
316 (((
317
318 )))
319
320 = 5.  FAQ =
321
322
323
324 = 6.  Order Info =
325
326
327 Part Number: (% style="color:blue" %)**DMT01-XX**
328
329 (% style="color:red" %)**XX:**
330
331 * **EU433**: Frequency bands EU433
332 * **EU868**: Frequency bands EU868
333 * **KR920**: Frequency bands KR920
334 * **CN470**: Frequency bands CN470
335 * **AS923**: Frequency bands AS923
336 * **AU915**: Frequency bands AU915
337 * **US915**: Frequency bands US915
338 * **IN865**: Frequency bands IN865
339 * **CN779**: Frequency bands CN779
340
341 = 7. ​ Packing Info =
342
343
344 (% style="color:#037691" %)**Package Includes:**
345
346 * DMT01 -  Digital Meat Thermoneter x 1
347
348 (% style="color:#037691" %)**Dimension and weight:**
349
350 * Device Size: cm
351 * Device Weight: g
352 * Package Size / pcs : cm
353 * Weight / pcs : g
354
355 = 8.  ​Support =
356
357
358 * 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.
359 * 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]].