<
From version < 87.8 >
edited by Xiaoling
on 2022/07/13 10:01
To version < 87.10 >
edited by Xiaoling
on 2022/07/13 10:03
>
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184 184  [[image:image-20220602102824-5.png||height="306" width="600"]]
185 185  
186 186  
187 +
187 187  ==== 2.  Press the RST switch once ====
188 188  
190 +
189 189  [[image:image-20220602104701-12.png||height="285" width="600"]]
190 190  
191 191  
194 +
192 192  ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
193 193  
194 194  
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230 230  [[image:image-20220602104923-13.png]]
231 231  
232 232  
236 +
233 233  (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
234 234  (% style="color:blue" %)**5. Check update process**
235 235  
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266 266  * AT Command via UART-TTL interface
267 267  * Firmware upgradable via UART interface
268 268  
273 +
274 +
269 269  == 3.3  Specification ==
270 270  
271 271  * CPU: 32-bit 48 MHz
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284 284  * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
285 285  * LoRa Rx current: <9 mA
286 286  
293 +
294 +
287 287  == 3.4  Pin Mapping & LED ==
288 288  
289 289  
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