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/* YourDuino SoftwareSerialExample1
- Connect to another Arduino running "YD_SoftwareSerialExampleRS485_1Remote"
- Connect this unit Pins 10, 11, Gnd
- Pin 3 used for RS485 direction control
- To other unit Pins 11,10, Gnd (Cross over)
- Open Serial Monitor, type in top window.
- Should see same characters echoed back from remote Arduino
Questions: terry@yourduino.com
*/
/*-----( Import needed libraries )-----*/
#include <SoftwareSerial.h>
/*-----( Declare Constants and Pin Numbers )-----*/
#define SSerialRX 10 //Serial Receive pin
#define SSerialTX 11 //Serial Transmit pin
#define SSerialTxControl 3 //RS485 Direction control
#define RS485Transmit HIGH
#define RS485Receive LOW
#define Pin13LED 13
/*-----( Declare objects )-----*/
SoftwareSerial RS485Serial(SSerialRX, SSerialTX); // RX, TX
/*-----( Declare Variables )-----*/
int i;
uint8_t byteReceived[8];
uint8_t byteSend[8];
//uint8_t byteReceivedold;
uint8_t byteReceived1=5;
void setup() /****** SETUP: RUNS ONCE ******/
{ i=0;
// Start the built-in serial port, probably to Serial Monitor
Serial.begin(9600);
//Serial.println("YourDuino.com SoftwareSerial remote loop example");
//Serial.println("Use Serial Monitor, type in upper window, ENTER");
pinMode(Pin13LED, OUTPUT);
pinMode(SSerialTxControl, OUTPUT);
digitalWrite(SSerialTxControl, RS485Receive); // Init Transceiver
// Start the software serial port, to another device
RS485Serial.begin(9600); // set the data rate
}//--(end setup )---
void loop() /****** LOOP: RUNS CONSTANTLY ******/
{
digitalWrite(Pin13LED, HIGH); // Show activity
while(Serial.available()>0)
{
byteReceived[i++]= Serial.read();
//byteReceived=Serial.readBytesUntil('1',byteReceivedold,7);
if(i==8)
{
digitalWrite(SSerialTxControl, RS485Transmit); // Enable RS485 Transmit
RS485Serial.write(byteReceived[0]); // Send byte to Remote Arduino
RS485Serial.write(byteReceived[1]);
RS485Serial.write(byteReceived[2]);
RS485Serial.write(byteReceived[3]);
RS485Serial.write(byteReceived[4]);
RS485Serial.write(byteReceived[5]);
RS485Serial.write(byteReceived[6]);
RS485Serial.write(byteReceived[7]);
i=0;
}
digitalWrite(Pin13LED, LOW); // Show activity
//delay(10);
digitalWrite(SSerialTxControl, RS485Receive); // Disable RS485 Transmit
}
if (RS485Serial.available()) //Look for data from other Arduino
{
digitalWrite(Pin13LED, HIGH); // Show activity
byteReceived1 = RS485Serial.read(); // Read received byte
String str = String(byteReceived1,HEX); // newly added for julia-arduino interface
if (str.length()==1)
Serial.print("0");
Serial.print(str); // changed from Serial.write to Serial.print for julia-arduino interface
//delay(10);
digitalWrite(Pin13LED, LOW); // Show activity
}
}//--(end main loop )---
/*-----( Declare User-written Functions )-----*/
//NONE
//*********( THE END )***********
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