Another great little project is published by David Johnson-Davies and it’s about a circuit able to keep track of your alcohol intake.
There seems to be a lot of discussion in the news currently about how much alcohol it’s safe to drink on a regular basis [1][2]. If you want help in monitoring your alcohol consumption this gadget might be useful. You enter the number of units you drink each day, and it keeps track of where you are relative to your target intake.
[…]I built this circuit a while ago when I wanted a way to keep an eye on my alcohol intake. Of course you could achieve the same result with a calendar and notebook, but this is more fun and motivating. The aim is to keep to a sensible average level of consumption, with the ability to enjoy several drinks when the occasion arises.
Alcohol Unit Counter using ATtiny84 – [Link]