Hi all,
Fairly new to the platform and my first post. Started out my journey with the Mega 2560 but realized it is overkill for some projects. Bought my first UNO and trying to make the below code run on it. Using an IR Remote Transmitter to PWM an LED array and do some other functions. Everything works great on the Mega, but I'm getting no signal out on Pin 11 when loaded on the UNO. Pin 11 on the UNO is functional as I tested it with a much simpler sketch to adjust the PWM value (verified on scope). Any ideas why this code will not run on the UNO ?
//sketch Rev. 03-08-2022 T.Decker
#include "IRremote.h" // Library for IR Receiver
const int outputPin = 11; // 0 - 255 PWM output on Pin 11
const int RECV_PIN = 10; // Signal Pin of IR receiver on Arduino Digital Pin 10
unsigned long key_value = 0 ;
int pwmValue;
int delayPeriod = 10; // delay in mS between PWM update during LED ramp up or down functions
/-----( Declare objects )-----/
IRrecv irrecv(RECV_PIN); // create instance of 'irrecv'
decode_results results; // create instance of 'decode_results'
/-----( Function )-----/
//void translateIR() // takes action based on IR code received
void setup()
{
pinMode(outputPin, OUTPUT);
// TCCR1B = TCCR1B & B11111000 | B00000100; // Changes PWM output frequency of pin 11 to 122.55 Hz (Mega2560 only)
// TCCR1B = TCCR1B & B11111000 | B00000011; // Default timer setting for pin 10 and 9 (UNO only)
// TCCR2B = TCCR2B & B11111000 | B00000110; // Pin D3 and D11 to change PWM frequency to 122.55 Hz (Uno Only)
// TCCR0B = TCCR0B & B11111000 | B00000100; // for PWM frequency of 244.14 Hz on D5 and D6 (UNO only)
irrecv.enableIRIn(); // Enables the IR receiver
irrecv.blink13(true); // Blinks Arduino LED (on pin 13)
}
void loop()
{
if (irrecv.decode(&results))
{
if (results.value == 0XFFFFFFFF)
results.value = key_value;
switch(results.value)
{
case 0xFFA25D: //Keypad button "Power" turns LED off"
pwmValue = 0 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF52AD: //Keypad button "9" Full brightness
pwmValue = 255 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF4AB5: //Keypad button "8"
pwmValue = 227 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF42BD: //Keypad button "7"
pwmValue = 198 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF5AA5: //Keypad button "6"
pwmValue = 170 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF38C7: //Keypad button "5"
pwmValue = 143 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF10EF: //Keypad button "4"
pwmValue = 80 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF7A85: //Keypad button "3"
pwmValue = 40 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF18E7: //Keypad button "2"
pwmValue = 20 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF30CF: //Keypad button "1"
pwmValue = 10 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF6897: //Keypad button "0" Dimmest setting
pwmValue = 5 ;
analogWrite(outputPin, pwmValue);
break;
case 0xFF906F: //Keypad button "up arrow" generates slow ramp up from 0 to 255 pwm
for (int n = 0; n < 256; n ++ )
{
pwmValue = n ;
delay (delayPeriod);
analogWrite(outputPin, pwmValue);
delay (delayPeriod);
}
delay (50);
analogWrite(outputPin, 0); // toggle off to indicate end of Ramp
delay (50);
analogWrite (outputPin, pwmValue); // toggle on back to full brightness
break;
case 0xFFE01F: //Keypad button "down arrow" generates slow ramp down from 255 to 0 pwm
for (int n = 255; n > -1; n -- )
{
pwmValue = n ;
delay (delayPeriod);
analogWrite(outputPin, pwmValue);
delay (delayPeriod);
}
delay (50);
break;
case 0xFFC23D: //Keypad button "Fast Forward" generates 35 fast flashes at 5Hz
for (int n = 0; n < 35 ; n ++ )
{
pwmValue = 255 ;
analogWrite(outputPin, pwmValue);
delay (100);
pwmValue = 0 ;
analogWrite(outputPin, pwmValue);
delay (100);
}
break;
}
key_value = results.value;
irrecv.resume();
}
}
