Temperature sensor with serial RS-485 interface. Two additional sensors can be connected using 3-pin headers on the circuit board. Uses an AVR ATmega8 microcontroller.
Temperature and humidity sensor (RS-232), AVR
I rebuilt an existing interface module — to be a stand-alone temperature and humidity sensor, with serial RS-232 interface. Uses an AVR ATmega8 microcontroller.
Temperature and light sensor with signalling LEDs (RS-232), AVR
I rebuilt an existing interface module — to be a stand-alone temperature and light sensor, with serial RS-232 interface and some signal LEDs. Uses an AVR ATmega8 microcontroller.
Car warning lights, with AVR controller
Strobe light controller, using the AVR ATtiny2313 microcontroller. Meant for cars; with front, side and rear warning lights.
Serial interface module, with analog and digital I/O — AVR
Serial (RS-232) interface module; providing 6 analog and 2 digital inputs, and 9 digital outputs. Uses an AVR ATmega8 microcontroller.
Serial port I/O module with 15 inputs — AVR
Serial (RS-232) interface module; providing 15 digital inputs. Uses an AVR ATmega8 microcontroller.
AVR car front lights controller
Lights controller for high beams and fog lights on my Subaru. Uses an AVR ATtiny2313 microcontroller.
Security keypad with programmable PIN — AVR
Keypad with programmable PIN code, two outputs (modes) and protection against repeated incorrect PINs. Uses an AVR ATtiny2313 microcontroller.
Dual channel warning LEDs controller, with AVR
Two channel strobe light controller, using the AVR ATtiny2313 microcontroller. Five flashing patterns that can be selected manually or cycled through. PWM outputs.
Intruder alarm system controller — AVR
A simple intruder alarm controller I build and used in my old apartment. Uses an AVR ATtiny2313 microcontroller.