A custom SEGA Genesis/Megadrive cartridge that turns the console into a headless alarm clock with RTC, seven-segment displays, save RAM, buttons, and a buzzer.

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Sooner or later I had to make one of these. A binary clock.

This is a very early project. It is a 24 hour clock that was built up using only standard CMOS ICs and no µC. The leading zero is surpressed. It has three buttons to set the time and a circular running light.

This is definitely one of my favorite projects and it is hanging in my living room (as of 10 years ago it is not hanging anymore as my better half did not approve of this "hideous thing").

A nother commom issue is timekeeping. This little module contains a DS3231 (or DS3232 with RAM) and the backup battery.

This is a multifunctional egg-timer. It has the following features:

This is a compact little device that simply shows the time, date and temperature.

This is the bigger brother of the Temp-p-clock. It has a 128x64 pixel display with a touchscreen. Read more

My UV exposure frame for making PCBs did not have a timer, so I built a little one and included it in the housing.

This is a little weather monitor. It has a 2.2" color display and is powered by an AVR and the ESP8266.