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kurt/lowest power sleep with button toggle #26

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kurt/lowest power sleep with button toggle #26

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f30fb96
Added button toggle for sleep
livingkurt Jan 19, 2024
7ea0e6f
Update button setup and interrupt configuration
livingkurt Jan 19, 2024
cad25b8
Fix Pin Change Interrupt and LED configuration
livingkurt Jan 19, 2024
f30a3be
Trying this
livingkurt Jan 19, 2024
3432039
Starts in sleep and button wakes it
livingkurt Jan 19, 2024
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36 changes: 32 additions & 4 deletions main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,29 @@
#include <avr/io.h>
#include <avr/interrupt.h> // Include this for sei()

volatile bool sleepEnabled = false; // Flag to control sleep mode

int main()
{
// Interrupt Service Routine for Pin Change Interrupt
ISR(PCINT0_vect) {

while (1)
{
}

int main() {
// Button setup
DDRB &= ~(1 << PB3); // Set PB3 as input
PORTB |= (1 << PB3); // Enable pull-up resistor on PB3

// Configure PB0 as output for the LED
DDRB |= (1 << PB0); // Set PB0 as output

// Enable Pin Change Interrupt for PB3
GIMSK |= (1 << PCIE); // Enable Pin Change Interrupts
PCMSK |= (1 << PCINT3); // Enable interrupt for PB3

sei(); // Enable global interrupts

// Turn off LED
PORTB &= ~(1 << PB0);
// Disable the Watchdog Timer
MCUSR &= ~(1 << WDRF);
wdt_disable();
Expand Down Expand Up @@ -42,6 +59,17 @@ int main()

// Disable sleep mode
sleep_disable();

while (1) {

// Re-enable Pin Change Interrupt for PB3
GIMSK |= (1 << PCIE); // Enable Pin Change Interrupts
PCMSK |= (1 << PCINT3); // Enable interrupt for PB3

// Reconfigure PB0 as output for the LED
DDRB |= (1 << PB0); // Set PB0 as output
// Set PB0 (LED) to high when not sleeping
PORTB |= (1 << PB0);
}
return 0;
}
Expand Down