Currently an Arduino prototype of a chimer which has 3 functions:
- Egg or Tea timer (3 min)
- Metta Bhavana meditation chimer with (10 min x 5)
- Pomodoro Tecnique chimer. (((20 min work then 5 min break) x 3) then 20 min work then 30 min break ) x 3 execpt on the third time after the last work period (20 min) the tea timer is called.
The components can all be found on the circuit diagram, however I used a BFY51 as a switch for the solenoid because it is what I had but it has been discontinued, a suitable alternative is a 2N3019. The solenoid I used can be found here https://shop.pimoroni.com/products/mini-solenoid?variant=2284520931338
Enjoy!