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Last modified by Xiaoling on 2025/04/23 15:57
From version 40.31
edited by Xiaoling
on 2022/06/06 09:50
Change comment: There is no comment for this version
To version 40.35
edited by Xiaoling
on 2022/06/06 09:56
Change comment: There is no comment for this version

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127 127  (((
128 128  
129 129  
130 +(((
130 130  v1.4
131 131  )))
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132 132  
133 133  (((
136 +(((
134 134  ~1. Change Power IC to TPS22916
135 135  )))
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136 136  
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137 137  
138 138  (((
146 +(((
139 139  v1.3
140 140  )))
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141 141  
142 142  (((
152 +(((
143 143  ~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
144 144  )))
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145 145  
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146 146  
147 147  (((
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148 148  v1.2
149 149  )))
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150 150  
151 151  (((
168 +(((
152 152  Release version ​​​​​
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153 153  
154 154  
155 155  )))
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243 243  
244 244  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
245 245  
264 +(((
246 246  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
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247 247  
268 +(((
248 248  **~1. RS485-MODBUS mode:**
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249 249  
272 +(((
250 250  AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
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251 251  
276 +(((
252 252  **2. TTL mode:**
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253 253  
280 +(((
254 254  AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
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255 255  
284 +(((
256 256  RS485-BL default UART settings is **9600, no parity, stop bit 1**. If the sensor has a different settings, user can change the RS485-BL setting to match.
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257 257  
258 258  (% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
259 259  |(((
290 +(((
260 260  **AT Commands**
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261 261  )))|(% style="width:285px" %)(((
294 +(((
262 262  **Description**
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263 263  )))|(% style="width:347px" %)(((
298 +(((
264 264  **Example**
265 265  )))
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266 266  |(((
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267 267  AT+BAUDR
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268 268  )))|(% style="width:285px" %)(((
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269 269  Set the baud rate (for RS485 connection). Default Value is: 9600.
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270 270  )))|(% style="width:347px" %)(((
271 271  (((
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272 272  AT+BAUDR=9600
273 273  )))
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274 274  
275 275  (((
318 +(((
276 276  Options: (1200,2400,4800,14400,19200,115200)
277 277  )))
278 278  )))
322 +)))
279 279  |(((
324 +(((
280 280  AT+PARITY
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281 281  )))|(% style="width:285px" %)(((
282 282  (((
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283 283  Set UART parity (for RS485 connection)
284 284  )))
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285 285  
286 286  (((
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287 287  Default Value is: no parity.
288 288  )))
338 +)))
289 289  )))|(% style="width:347px" %)(((
290 290  (((
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291 291  AT+PARITY=0
292 292  )))
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293 293  
294 294  (((
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295 295  Option: 0: no parity, 1: odd parity, 2: even parity
296 296  )))
297 297  )))
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298 298  |(((
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299 299  AT+STOPBIT
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300 300  )))|(% style="width:285px" %)(((
301 301  (((
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302 302  Set serial stopbit (for RS485 connection)
303 303  )))
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304 304  
305 305  (((
364 +(((
306 306  Default Value is: 1bit.
307 307  )))
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308 308  )))|(% style="width:347px" %)(((
309 309  (((
370 +(((
310 310  AT+STOPBIT=0 for 1bit
311 311  )))
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312 312  
313 313  (((
376 +(((
314 314  AT+STOPBIT=1 for 1.5 bit
315 315  )))
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316 316  
317 317  (((
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318 318  AT+STOPBIT=2 for 2 bits
319 319  )))
320 320  )))
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321 321  
322 322  
323 323  === 3.3.2 Configure sensors ===
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1292 1292  
1293 1293  == 6.2 How to change the LoRa Frequency Bands/Region? ==
1294 1294  
1361 +(((
1295 1295  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
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