Stage | idel Power |
---|---|
Initial | 0.121W |
w/o 78M05 | 0.096W |
w/o diods and LED | 0.072W |
use sleep_cpu() | 0.002W |
Blinking Led
Low Power Blinking LED Example
#include <avr/wdt.h> #include <avr/sleep.h> #include <avr/interrupt.h> #define adc_disable() (ADCSRA &= ~(1<<ADEN)) // disable ADC (before power-off) #define adc_enable() (ADCSRA |= (1<<ADEN)) // re-enable ADC void setup() { // Power Saving setup for (byte i = 0; i < 6; i++) { pinMode(i, INPUT); // Set all ports as INPUT to save energy digitalWrite (i, LOW); // Might help if ther is some sensors on pins? No impact in this demo } adc_disable(); // Disable Analog-to-Digital Converter wdt_reset(); // Watchdog reset wdt_enable(WDTO_1S); // Watchdog enable Options: 15MS, 30MS, 60MS, 120MS, 250MS, 500MS, 1S, 2S, 4S, 8S WDTCR |= _BV(WDIE); // Interrupts watchdog enable sei(); // enable interrupts set_sleep_mode(SLEEP_MODE_PWR_DOWN); // Sleep Mode: max } void loop() { //Set the LED pins to HIGH. This gives power to the LED and turns it on pinMode(0, OUTPUT); pinMode(1, OUTPUT); digitalWrite(0, HIGH); digitalWrite(1, HIGH); sleep_enable(); sleep_cpu(); //Set the LED pins to LOW. This turns it off pinMode(0, OUTPUT); pinMode(1, OUTPUT); digitalWrite(0, LOW); digitalWrite(1, LOW); //Wait for a second sleep_enable(); sleep_cpu(); } ISR (WDT_vect) { WDTCR |= _BV(WDIE); // разрешаем прерывания по ватчдогу. Иначе будет реcет. }
Source: https://alexgyver.ru/pump-sleep/
Source: http://www.gammon.com.au/power