Posts tagged: sios

When I first started making AVR modules, there was no Raspberry Pi or ESP8266. Arduino was introduced in 2005, the same year I started with the AVR microcontroller. But I didn’t know of it until many …

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.

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.

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.

Portal alarm box unit, my main project on technical college.

Serial (RS-232) interface module; providing 6 analog and 2 digital inputs, and 9 digital outputs. Uses an AVR ATmega8 microcontroller.

Serial (RS-232) interface module; providing 15 digital inputs. Uses an AVR ATmega8 microcontroller.

RS-232 interface module, with voltage measurement. Used to communicate with the emergency power off unit in the Rack box project. Installed inside Rack box status panel. Uses an AVR ATmega8 …

Light intensity and temperature sensors; with white, green, yellow, red and blue signal LEDs and a buzzer. RS-232 communication. Uses an AVR ATmega8 microcontroller.

RS-232 interface module, with 9 inputs and 9 outputs. Uses an AVR ATmega8 microcontroller.

RS-232 input module, with 11 inputs. Rebuild of previous RS-485 module. Uses an AVR ATtiny2313 microcontroller.