M5 RS485 Modbus slave sample code does not compile
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I have an Atom Switch that I want to use RS485 modbus with has not modbus sample code. So I trying to use sample code from the ATOM DTU devices.
When I try to compile the sample code it gives the following error
error: no matching function for call to 'RS485Class::RS485Class(HardwareSerial&, int, int, int, int)' RS485Class RS485(Serial2, ATOM_DTU_RS485_RX, ATOM_DTU_RS485_TX, -1, -1);
Which makes sense as I don't understand where the RS485Class is defined or how it is in the below code sample. Has anyone got this working?
#include <M5Atom.h> #include <ArduinoModbus.h> #include <ArduinoRS485.h> #include "ATOM_DTU_NB.h" const int numCoils = 10; const int numDiscreteInputs = 10; const int numHoldingRegisters = 10; const int numInputRegisters = 10; RS485Class RS485(Serial2, ATOM_DTU_RS485_RX, ATOM_DTU_RS485_TX, -1, -1);
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Have you downloaded and installed all the libraries required in arduino?
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@ajb2k3 yup, all the libraries in the include section are downloaded and the compiler does not throw any missing file errors
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I'm having the same problem testing a similar example in https://github.com/m5stack/ATOM_DTU_LoRaWAN/blob/master/examples/Modbus/ModBus-RTU/Slave/Slave.ino
Does anyone have a working example to share?