// This code was written by Victor Perez for doityourselfchristmas.com based on the code from Zparticle, Si_champion and Neil Tapp.
// To adapt the code to your case, just change this top section, with the #define lines.
// Includes the watchdog timer library
#include <avr/wdt.h>
// This sets how many channels will vixen be sending. Can be set to any number from 1 to 48 for Arduino Mega, and 1 to 18 for Arduino Uno.
#define CHANNEL_COUNT 16
// speed for the com port for talking with vixen. From 9600 to 115200. Use the same speed as set in Vixen.
#define VIXEN_COM_SPEED 57600
// Timeout waiting for serial input before going to random mode (in milliseconds).
#define TIME_OUT 1000
// If the relays turn On and Off opposite to Vixen sequence, change "#define MODE NOT_INVERTED" for "#define MODE INVERTED"
#define NOT_INVERTED 0
#define INVERTED 1
#define MODE NOT_INVERTED
// which pins control which channels
// You can change these assignment to use different pins, but be very careful to not repeat the same pin number for 2 channels.
// DO NOT use pings 0 and 1, as those are for the serial port to talk to the computer.
#define CH01 2
#define CH02 3
#define CH03 4
#define CH04 5
#define CH05 6
#define CH06 7
#define CH07 8
#define CH08 9
#define CH09 10
#define CH10 11
#define CH11 12
#define CH12 13
#define CH13 A0
#define CH14 A1
#define CH15 A2
#define CH16 A3
#define CH17 A4
#define CH18 A5
// Up to here for Arduino uno.
#define CH19 A6
#define CH20 A7
#define CH21 A8
#define CH22 A9
#define CH23 A10
#define CH24 A11
#define CH25 A12
#define CH26 A13
#define CH27 A14
#define CH28 A15
#define CH29 22
#define CH30 23
#define CH31 24
#define CH32 25
#define CH33 26
#define CH34 27
#define CH35 28
#define CH36 29
#define CH37 30
#define CH38 31
#define CH39 32
#define CH40 33
#define CH41 34
#define CH42 35
#define CH43 36
#define CH44 37
#define CH45 38
#define CH46 39
#define CH47 40
#define CH48 41
int channels[] = {CH01,CH02,CH03,CH04,CH05 ,CH06,CH07,CH08,CH09,
CH10,CH11,CH12,CH13,CH14,CH15,CH16,CH17,CH18,CH19,CH20,CH21,CH22,
CH23,CH24,CH25,CH26,CH27,CH28,CH29,CH30,CH31,CH32,CH33,CH34,CH35,
CH36,CH37,CH38,CH39,CH40,CH41,CH42,CH43,CH44,CH45,CH46,CH47,CH48};
int incomingByte[CHANNEL_COUNT];
int i = 0; // Loop counter
volatile unsigned long timer_a = 0; // new line
//setup the pins/ inputs & outputs
void setup(){
// enable the watchdog timer with a time of 1 second. If the board freezes, it will reset itself after 1 second.
wdt_enable(WDTO_1S);
// specifically for the UNO
sei();
// initalize PWM Channels / Pins
for (i=0; i < CHANNEL_COUNT; i++){
pinMode(channels[i], OUTPUT);
}
// set all the realys to off to start with
if (MODE == NOT_INVERTED) {
for (i=0; i < CHANNEL_COUNT; i++){
digitalWrite(channels[i], LOW);
}
}
else {
for (i=0; i < CHANNEL_COUNT; i++){
digitalWrite(channels[i], HIGH);
}
}
testSequence();
// set up Serial according to the speed defined above.
Serial.begin(VIXEN_COM_SPEED);
}
void loop()
{
if (Serial.available() >= (CHANNEL_COUNT+2)) {
wdt_reset(); // resets the watchdog
timer_a = millis (); // new line
int uno = Serial.read();
if (uno == 126){
int dos = Serial.read();
if (dos == 33){
for (i=0; i < CHANNEL_COUNT; i++) {
// read each byte
incomingByte[i] = Serial.read();
}
if (MODE == NOT_INVERTED) {
for (i=0; i < CHANNEL_COUNT; i++){
int value = incomingByte[i];
if (value <= 127) {
digitalWrite(channels[i], LOW);
}
else {
digitalWrite(channels[i], HIGH);
}
}
}
else {
for (i=0; i < CHANNEL_COUNT; i++){
int value = incomingByte[i];
if (value < 127) {
digitalWrite(channels[i], HIGH);
}
else {
digitalWrite(channels[i], LOW);
}
}
}
}
}
}
// Random mode code. Random mode starts if no serial input has been received in TIME_OUT millisenconds
else {
wdt_reset(); // resets the watchdog
unsigned long diff = millis() - timer_a;
if (diff >= TIME_OUT) {
timer_a = millis ();
int random_a = 0;
for (i=0; i < CHANNEL_COUNT; i++){
random_a = random(0, 2);
if (random_a == 0) {
digitalWrite(channels[i], LOW);
}
else {
digitalWrite(channels[i], HIGH);
}
}
}
}
}
void testSequence(){
if (MODE == NOT_INVERTED) {
for (i=0; i < CHANNEL_COUNT; i++){
wdt_reset(); // resets the watchdog
digitalWrite(channels[i], HIGH);
delay (500);
digitalWrite(channels[i], LOW);
}
}
else {
for (i=0; i < CHANNEL_COUNT; i++){
wdt_reset(); // resets the watchdog
digitalWrite(channels[i], LOW);
delay (500);
digitalWrite(channels[i], HIGH);
}
}
}
