<
From version < 87.10 >
edited by Xiaoling
on 2022/07/13 10:03
To version < 87.8 >
edited by Xiaoling
on 2022/07/13 10:01
>
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184 184  [[image:image-20220602102824-5.png||height="306" width="600"]]
185 185  
186 186  
187 -
188 188  ==== 2.  Press the RST switch once ====
189 189  
190 -
191 191  [[image:image-20220602104701-12.png||height="285" width="600"]]
192 192  
193 193  
194 -
195 195  ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
196 196  
197 197  
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233 233  [[image:image-20220602104923-13.png]]
234 234  
235 235  
236 -
237 237  (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
238 238  (% style="color:blue" %)**5. Check update process**
239 239  
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270 270  * AT Command via UART-TTL interface
271 271  * Firmware upgradable via UART interface
272 272  
273 -
274 -
275 275  == 3.3  Specification ==
276 276  
277 277  * CPU: 32-bit 48 MHz
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290 290  * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
291 291  * LoRa Rx current: <9 mA
292 292  
293 -
294 -
295 295  == 3.4  Pin Mapping & LED ==
296 296  
297 297  
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