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.

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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.

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Portable alarm system (school project, electronics)

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

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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.

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Serial port I/O module with 15 inputs — AVR

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

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