Fridge Leftover Monitor

A simple timer device that starts blinking when your food has been in the fridge for more than a week.

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This is a project I finished awhile ago while learning how to use the HT68F001 mcu from Holtek. It has a single button to turn it on and check that its timing, and an led for some feedback. Its powered by a CR2032 and with the HT68F001 mcu pulling something like 8uA while running, should last for several years.

The idea is you have a drawer full of these and when you put your leftovers in the fridge throw one of the devices on it and click the button to start it. To make sure its running you can click the button again and it will blink twice to show its actually doing something. Once the week is up, it blinks continuously, letting you know its time to throw the nasty leftovers away.

To see it in action:

Board files are up on github, I'll add the code in a later update.

And heres the actual github files:

And actually public now :) Oops...

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fgeeraert wrote 05/03/2022 at 01:43 point

Not yet on GitHub!!

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Jeremy S. Cook wrote 05/02/2022 at 13:46 point

Neat. Looks like the GitHub link isn't working.

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