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src: http://digispark.s3.amazonaws.com/DigisparkProDiagram2.png
Blink Example
Power consumption: 0.108-0.120W
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// the setup routine runs once when you press reset: void setup() { // initialize the digital pin as an output. pinMode(1, OUTPUT); //on board LED } // the loop routine runs over and over again forever: void loop() { digitalWrite(1, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(1, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second } |
Low Power Blink Example
Power Consumption: 0.038-0.051W
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#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); // } 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() { pinMode(1, OUTPUT); digitalWrite(1, HIGH); sleep_enable(); sleep_cpu(); //Set the LED pins to LOW. This turns it off pinMode(1, OUTPUT); digitalWrite(1, LOW); sleep_enable(); sleep_cpu(); } ISR (WDT_vect) { WDTCR |= _BV(WDIE); } |
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