// AltSoftSerial Receive Test
//
// Transmit data with Serial1 and try to receive
// it with AltSoftSerial. You must connect a wire
// from Serial1 TX to AltSoftSerial RX.
#include <AltSoftSerial.h>
AltSoftSerial altser;
const int mybaud = 9600;
// Board Serial1 TX AltSoftSerial RX
// ----- ---------- ----------------
// Teensy 3.x 1 20
// Teensy 2.0 8 (D3) 10 (C7)
// Teensy++ 2.0 3 (D3) 4 (D4)
// Arduino Leonardo 1 13
// Arduino Mega 18 48
// Serial1 on AVR @ 16 MHz minimum baud is 245
// Serial1 on Teensy 3.2 @ 96 MHz minimum baud is 733
// This example code is in the public domain.
byte sentbyte;
unsigned long prevmillis;
byte testbyte=0xF0;
void setup()
{
delay(200);
Serial.begin(9600);
while (!Serial) ; // wait for Arduino Serial Monitor
Serial1.begin(mybaud); // connect a wire from TX1
altser.begin(mybaud); // to AltSoftSerial RX
Serial.println("AltSoftSerial Receive Test");
prevmillis = millis();
}
void loop()
{
// transmit a test byte on Serial 1
if (millis() - prevmillis > 250) {
sentbyte = testbyte++;
Serial1.write(sentbyte);
prevmillis = millis();
}
// attempt to receive it by AltSoftSerial
if (altser.available() > 0) {
byte b = altser.read();
Serial.println(b);
if (b != sentbyte) {
Serial.println("***** ERROR *****");
}
}
}