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Example Projects

Interfacing with an FADUINO (Digital IO)

This project illustrates how to use a ComfileHMI to monitor and control an FADUINO's digital inputs and outputs.

Download ComfileHMI Project
Download FADUINO Source Code

#include "SimpleModbusRtu_mega2560.h"
 
uint16_t au16data[16];
uint8_t au8data[10];
 
void setup()
{
  int i;
  for(i=22; i<38; i++){ pinMode(i, INPUT); } // 22 ~ 37 Inputs
  for(i=38; i<52; i++){ pinMode(i, OUTPUT); }   // 38 ~ 51 Outputs
 
  Serial.begin(9600);
 
  usart1init(57600); // 9600, 19200, 38400, 57600 , Serial channel1
  startSimpleModbus(1, au16data, au8data); // slave address, register, coil
}
 
void loop() 
{  
  int n;
  for(n=0; n<8; n++){ bitWrite(au8data[0] ,n, digitalRead(n+22)) ;}  //Input 
  for(n=0; n<8; n++){ bitWrite(au8data[1], n, digitalRead(n+30)) ;}
 
  for(n=0; n<8; n++){ digitalWrite(38+n, bitRead(au8data[2], n)) ;}  // Output
  for(n=0; n<8; n++){ digitalWrite(46+n, bitRead(au8data[3], n)) ;}
}