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ESP32/ESP8266 RS485 gateway - example needed

Konrad Winiarski last edited by
Hi there!
Did anyone tried (successfuly) to use ESP32 as gateway for RS485 nodes?
So far I tried to (testing on ESP8266):
1. ...use example for Serial Gateway: https://www.mysensors.org/build/rs485 but no success. AltSoftwareSerial is not working with ESP32, it won't compile,
2. ...search for solution to replace AltSoftwareSerial to EspSoftwareSerial - but nothing found,
3. ...change to HWSerial (#define MY_RS485_HWSERIAL Serial1 // also checked with Serial) but there is no data "comming out" from TX pin (except ESP "junk" and the start),
Some debug info:
- The node (Arduino) is the code from example: https://www.mysensors.org/build/rs485:
```
381282 TSM:FAIL:RE-INIT
381284 TSM:INIT
381285 TSM:INIT:TSP OK
381287 TSF:SID:OK,ID=10
381290 TSM:FPAR
381308 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
383316 !TSM:FPAR:NO REPLY
383319 TSM:FPAR
383337 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
385345 !TSM:FPAR:NO REPLY
385347 TSM:FPAR
385366 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
387374 !TSM:FPAR:NO REPLY
387376 TSM:FPAR
387394 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
389402 !TSM:FPAR:FAIL
389404 TSM:FAIL:CNT=7
389406 TSM:FAIL:DIS
389408 TSF:TDI:TSL
```
- the data is transmitted out to RS485 (checked with another TTL-USB converter), hex:
```
01 FF 0A 58 07 02 0A 0A FF 02 03 07 FF 03 86 04
```
- the data is received from RS485 (same content) as above - DE/RE pins are controlled from ESP (at least Low State is set)
- RO is connected to RX pin at ESP32
- no response is comming out from TX pin (except junk at start)
The code:
Thanks in advance for hints!
Konrad
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Hi there, Thanks for the replies! It seemed that the culprit was my stupidity. I forgot that the AccelStepper library's stepper.moveTo() function's argument was the absolute rather than the relative position of the stepper motor. As such my code would end up trying to push the stepper motor to extreme values (because I thought I needed to input a negative to move to the left etc) and this caused weird things to happen, most likely this crashing as well. In any case I'm glad the issue has been resolved. @electrik the programme takes up 72% of storage space and 64% of dynamic memory, so I will definitely cut out the Serial logs once I am done debugging. @mfalkvidd yikes you're right it seems I had forgotten to include the function to run the steppers. 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Stopping all motors at pos: "); Serial.println(currentShutterLevel); #endif break; case V_PERCENTAGE: int pos = message.getInt(); if(pos > 100) pos = 100; if(pos < 0) pos = 0; if(!requested){ currentShutterLevel = pos; desiredShutterLevel = pos; setCurrentPositionofAll(map(pos,0,100,0,totalDist*stepsPerMM)); #ifdef MY_DEBUG Serial.print("Initialized! Current Shutter Level Set to: "); Serial.println(currentShutterLevel); #endif requested = true; } else{ desiredShutterLevel = pos; } currentState = (desiredShutterLevel > currentShutterLevel)?UP:DOWN; #ifdef MY_DEBUG Serial.print("Shutter State is PERC = "); Serial.println(desiredShutterLevel); Serial.print("currentShutterLevel = "); Serial.println(currentShutterLevel); Serial.print("desiredShutterLevel = "); Serial.println(desiredShutterLevel); #endif break; } } #ifdef MY_DEBUG Serial.print("Exiting this message with currentState = "); Serial.println(currentState); #endif } void enableAllSteppers(void){ stepperOne.enableOutputs(); stepperTwo.enableOutputs(); stepperThree.enableOutputs(); stepperFour.enableOutputs(); } void moveAllSteppers(int steps){ stepperOne.moveTo(steps); stepperTwo.moveTo(steps); stepperThree.moveTo(steps); stepperFour.moveTo(steps); } void runAllSteppers(void){ stepperOne.run(); stepperTwo.run(); stepperThree.run(); stepperFour.run(); } void disableAllSteppers(void){ stepperOne.disableOutputs(); stepperTwo.disableOutputs(); stepperThree.disableOutputs(); stepperFour.disableOutputs(); } void setCurrentPositionofAll(int pos){ stepperOne.setCurrentPosition(pos); stepperTwo.setCurrentPosition(pos); stepperThree.setCurrentPosition(pos); stepperFour.setCurrentPosition(pos); } Thanks so much for your patience and suggestions!
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Hi @frapell, does the network id (MY_RFM69_NETWORKID) used on the node and the gateway match? Also other communication parameters like MY_RFM69_MODEM_CONFIGURATION, for example. If, for example, your node has the following parameters... #define MY_RFM69_NETWORKID 123 #define MY_RFM69_MODEM_CONFIGURATION RFM69_FSK_BR55_5_FD50 ... you should pass the same parameters to the configure statement: --extra-cxxflags="-DMY_RFM69_NETWORKID=\(123\) -DMY_RFM69_MODEM_CONFIGURATION=RFM69_FSK_BR55_5_FD50" Also check if encryption settings match, if encryption is enabled.

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