using sleep mode and IRremote - Programming Questions - Arduino Forum original info from here
Hello
First time posting and a bit of a noob just getting into electronics and this is my first project so bear with me please.
I am using an Arduino NANO v3, with ir receiver on pcb, L298N motor driver fed by 18650 battery with step up voltage to cover both the dc motor and a feed going to the nano, 3v dc geared motor - generic remote.
I am trying to use the code posted but to just drive a dc motor from an ir receiver & remote, came across this and thought it would suit if I meddled with it a bit, I can get the signal to show within the serial monitor but it does not turn the motor etc, but it seems that the sleep function works correctly, it also wakes ok from the remote key presses (Not sure if I meddled too much with the code) The IR codes have been changed to the ones received from my remote so it should react to "<" = CW rotation, ">" = CCW Rotation & "OK" = STOP. as the project runs on battery power I would like it to sleep as to save batteries, once I have the code working correctly I will be removing the power led / resistor and also the 5v regulator etc to save more battery drain.
Please would one of you kind souls take a look and see if you can see where I am going wrong? any help or advice would be greatly received, many thanks in advance.
#include <avr/interrupt.h>
#include <avr/power.h>
#include <avr/sleep.h>
#include <IRremote.h>
const int RECV_PIN = 2;
const int EN12 = 3;
const int P1 = 5;
const int P2 = 6;
IRrecv irrecv(RECV_PIN);
decode_results results;
int state [3];
#define interruptPin 2
#define EN12 3
void clearflags(void)
{
state[0] = 0;
state[1] = 0;
state[2] = 0;
}
void motorcw(void) {
digitalWrite(P1, HIGH); //activate motor
digitalWrite(P2, LOW); //activate motor
for (int x = 1; x <= 2; x++) //slow flash diagnostic indicator
{ digitalWrite(13, HIGH);
delay(250);
digitalWrite(13, LOW);
delay(250);
}
}
void motorccw(void) {
digitalWrite(P1, LOW); //activate motor
digitalWrite(P2, HIGH); //activate motor
for (int x = 1; x <= 4; x++) //fast flash diagnostic indicator
{ digitalWrite(13, HIGH);
delay(100);
digitalWrite(13, LOW);
delay(100);
}
}
void motorstop(void) {
digitalWrite(P1, HIGH);
digitalWrite(P2, HIGH);
delay(1000);//to be consistent with cw/ccw timeout total
}
void sleepNow(void) {
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
// Set sleep enable (SE) bit:
sleep_enable();
// Do not interrupt before we go to sleep, or the
// ISR will detach interrupts and we won't wake.
noInterrupts ();
// Set pin 2 as interrupt and attach handler:
attachInterrupt(0, pinInterrupt, LOW);
// Upon waking up, sketch continues from this point.
sleep_disable();
interrupts();
sleep_mode();
}
void pinInterrupt(void) {
detachInterrupt(0);
}
void checkirforkey (void)
{
if (irrecv.decode(&results))
{
if (results.value == 0xFF5AA5)//Keypad button ">"
{
state[0] = 1;state[1] = 0;state[2] = 0;
Serial.println(results.value, HEX);
}
if (results.value == 0xFF10EF) //Keypad button "<"
{
state[0] = 0;state[1] = 1;state[2] = 0;
Serial.println(results.value, HEX);
}
if (results.value == 0xFF38C7) //Keypad button "OK"
{
state[0] = 0;state[1] = 0;state[2] = 1;
Serial.println(results.value, HEX);
}
if (results.value == 0x00)
{
return;
}
irrecv.resume();
}
}
void setup()
{
pinMode(13, OUTPUT);
digitalWrite(13, LOW);
Serial.begin(9600);// setup Serial Monitor to display information
pinMode(P1, OUTPUT);// define pin as OUTPUT for P1
pinMode(P2, OUTPUT);// define pin as OUTPUT for P2
pinMode(EN12, OUTPUT);// define pin as OUTPUT for 1,2EN
pinMode(interruptPin, INPUT_PULLUP);
irrecv.enableIRIn();
}
void loop()
{
clearflags();
state[0] = 1;
for (int awake = 0; awake < 10; awake++)
{
checkirforkey();
if (state[0] == 1) {
motorcw();
}
if (state[1] == 1) {
motorccw();
}
if (state[2] == 1) {
motorstop();
}
}
clearflags();
motorstop();
delay(1000);
sleepNow();
}
