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/* YourDuino SoftwareSerialExample1Remote
- Used with YD_SoftwareSerialExampleRS485_1 on another Arduino
- Remote: Receive data, loop it back...
- Connect this unit Pins 10, 11, Gnd
- To other unit Pins 11,10, Gnd (Cross over)
- Pin 3 used for RS485 direction control
- Pin 13 LED blinks when data is received
Questions: terry@yourduino.com
*/
/*-----( Import needed libraries )-----*/
#include <SoftwareSerial.h>
/*-----( Declare Constants and Pin Numbers )-----*/
#define SSerialRX 2 //RO Serial Receive pin
#define SSerialTX 13 //DI Serial Transmit pin
#define SSerialTxControl 3 //DE RE RS485 Direction control
#define RS485Transmit HIGH
#define RS485Receive LOW
#define Pin13LED 13
/*-----( Declare objects )-----*/
SoftwareSerial RS485Serial(SSerialRX, SSerialTX); // RX, TX
/*-----( Declare Variables )-----*/
int byteReceived;
int byteSend;
void setup() /****** SETUP: RUNS ONCE ******/
{
// Start the built-in serial port, probably to Serial Monitor
Serial.begin(9600);
Serial.println("SerialRemote"); // Can be ignored
pinMode(Pin13LED, OUTPUT);
pinMode(SSerialTxControl, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
digitalWrite(SSerialTxControl, RS485Receive); // Init Transceiver
// Start the software serial port, to another device
RS485Serial.begin(4800); // set the data rate
}//--(end setup )---
void togglePin(int pin) {
if (digitalRead(pin) == HIGH) {
digitalWrite(pin, LOW);
} else {
digitalWrite(pin, HIGH);
}
}
void loop() /****** LOOP: RUNS CONSTANTLY ******/
{
//Copy input data to output
if (RS485Serial.available())
{
byteSend = RS485Serial.read(); // Read the byte
digitalWrite(Pin13LED, HIGH); // Show activity
delay(10);
digitalWrite(Pin13LED, LOW);
togglePin(byteSend - 97 - 8 + 4 );
Serial.println(byteSend);
//digitalWrite(SSerialTxControl, RS485Transmit); // Enable RS485 Transmit
//RS485Serial.write(byteSend); // Send the byte back
//delay(10);
//digitalWrite(SSerialTxControl, RS485Receive); // Disable RS485 Transmit
// delay(100);
}// End If RS485SerialAvailable
}//--(end main loop )---
/*-----( Declare User-written Functions )-----*/
//NONE
//*********( THE END )***********
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