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Last modified by Xiaoling on 2025/04/23 15:57
From version 41.17
edited by Xiaoling
on 2022/06/06 11:05
Change comment: There is no comment for this version
To version 41.30
edited by Xiaoling
on 2022/06/06 11:13
Change comment: There is no comment for this version

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... ... @@ -976,7 +976,9 @@
976 976  
977 977  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
978 978  
979 +(((
979 979  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
981 +)))
980 980  
981 981  
982 982  **Example 2:**
... ... @@ -1270,7 +1270,7 @@
1270 1270  
1271 1271  == 3.6 Buttons ==
1272 1272  
1273 -(% border="1" style="background-color:#ffffcc; color:green; width:233px" %)
1275 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:233px" %)
1274 1274  |=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
1275 1275  |(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
1276 1276  
... ... @@ -1278,38 +1278,75 @@
1278 1278  
1279 1279  == 3.7 +3V3 Output ==
1280 1280  
1283 +(((
1281 1281  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1285 +)))
1282 1282  
1287 +(((
1283 1283  The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
1289 +)))
1284 1284  
1291 +(((
1285 1285  The +3V3 output time can be controlled by AT Command.
1293 +)))
1286 1286  
1295 +(((
1296 +
1297 +)))
1287 1287  
1299 +(((
1288 1288  (% style="color:#037691" %)**AT+3V3T=1000**
1301 +)))
1289 1289  
1303 +(((
1304 +
1305 +)))
1290 1290  
1307 +(((
1291 1291  Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1309 +)))
1292 1292  
1311 +(((
1293 1293  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1313 +)))
1294 1294  
1295 1295  
1296 1296  == 3.8 +5V Output ==
1297 1297  
1318 +(((
1298 1298  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1320 +)))
1299 1299  
1322 +(((
1300 1300  The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
1324 +)))
1301 1301  
1326 +(((
1302 1302  The 5V output time can be controlled by AT Command.
1328 +)))
1303 1303  
1330 +(((
1331 +
1332 +)))
1304 1304  
1334 +(((
1305 1305  (% style="color:#037691" %)**AT+5VT=1000**
1336 +)))
1306 1306  
1338 +(((
1339 +
1340 +)))
1307 1307  
1342 +(((
1308 1308  Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1344 +)))
1309 1309  
1346 +(((
1310 1310  By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1348 +)))
1311 1311  
1312 1312  
1351 +
1313 1313  == 3.9 LEDs ==
1314 1314  
1315 1315  (% border="1" style="background-color:#ffffcc; color:green; width:332px" %)
... ... @@ -1316,6 +1316,8 @@
1316 1316  |=**LEDs**|=(% style="width: 274px;" %)**Feature**
1317 1317  |**LED1**|(% style="width:274px" %)Blink when device transmit a packet.
1318 1318  
1358 +
1359 +
1319 1319  == 3.10 Switch Jumper ==
1320 1320  
1321 1321  (% border="1" style="background-color:#ffffcc; color:green; width:515px" %)
... ... @@ -1331,9 +1331,13 @@
1331 1331  3.3v position: set to compatible with 3.3v I/O.,
1332 1332  )))
1333 1333  
1375 +(((
1334 1334  **+3.3V**: is always ON
1377 +)))
1335 1335  
1379 +(((
1336 1336  **+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1381 +)))
1337 1337  
1338 1338  
1339 1339  = 4. Case Study =
... ... @@ -1345,17 +1345,23 @@
1345 1345  
1346 1346  == 5.1 Access AT Command ==
1347 1347  
1393 +(((
1348 1348  RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1395 +)))
1349 1349  
1350 1350  [[image:1654135840598-282.png]]
1351 1351  
1352 1352  
1400 +(((
1353 1353  In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1402 +)))
1354 1354  
1355 1355  [[image:1654136105500-922.png]]
1356 1356  
1357 1357  
1407 +(((
1358 1358  More detail AT Command manual can be found at [[AT Command Manual>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]]
1409 +)))
1359 1359  
1360 1360  
1361 1361  == 5.2 Common AT Command Sequence ==
... ... @@ -1380,7 +1380,9 @@
1380 1380  )))
1381 1381  
1382 1382  
1434 +(((
1383 1383  If device already joined network:
1436 +)))
1384 1384  
1385 1385  (% class="box infomessage" %)
1386 1386  (((
... ... @@ -1419,10 +1419,12 @@
1419 1419  
1420 1420  (% style="color:red" %)**Note:**
1421 1421  
1475 +(((
1422 1422  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1423 1423  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1424 1424  3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1425 1425  4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1480 +)))
1426 1426  
1427 1427  [[image:1654136435598-589.png]]
1428 1428  
... ... @@ -1431,13 +1431,23 @@
1431 1431  
1432 1432  == 6.1 How to upgrade the image? ==
1433 1433  
1489 +(((
1434 1434  The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1491 +)))
1435 1435  
1436 -* Support new features
1437 -* For bug fix
1438 -* Change LoRaWAN bands.
1493 +* (((
1494 +Support new features
1495 +)))
1496 +* (((
1497 +For bug fix
1498 +)))
1499 +* (((
1500 +Change LoRaWAN bands.
1501 +)))
1439 1439  
1503 +(((
1440 1440  Below shows the hardware connection for how to upload an image to RS485-BL:
1505 +)))
1441 1441  
1442 1442  [[image:1654136646995-976.png]]
1443 1443  
... ... @@ -1503,6 +1503,8 @@
1503 1503  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1504 1504  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1505 1505  
1571 +
1572 +
1506 1506  = 9. Packing Info =
1507 1507  
1508 1508  (((