ATTINY13 Atmel microcontroller installed on the circuit model helicopter is checking the voltage of the battery the battery (or battery) voltage circuit when the level set LEDs, buzzer, giving the alam. ATTINY13 PB2, PB1, and PB0 pin chassis yaplılarak... Electronics Projects, Battery Alarm Circuit for Model Helicopters ATtiny13 "avr project, microcontroller projects, simple circuit projects, " Date 2019/08/03