Hi everyone!
First of all Im not really a DIY-type of guy, so please be gentle with me, Im new to all this
For a summer camp game I need to have some kind of mobile, tamper resistant countdown timer.
Since I couldn't find anything like that ready to buy, I decided I might have to try and build them myself (please tell me if im crazy for trying this).
Here's what I'd like to achieve:
- A small, mobile device (easily carried around in one hand), that counts down a fixed time (10 minutes) and then makes a noise (think alarm clock)
- Once the countdown is started, it shouldn't be possible to stop or reset it (except for removing the battery obviously)
- The device should have some kind of clock displaying the remaining time
- For budget reasons a single device can not cost more than 12€ (I plan on using 10 devices, 120€ budget)
Any help would be much appreciated!
First of all Im not really a DIY-type of guy, so please be gentle with me, Im new to all this
For a summer camp game I need to have some kind of mobile, tamper resistant countdown timer.
Since I couldn't find anything like that ready to buy, I decided I might have to try and build them myself (please tell me if im crazy for trying this).
Here's what I'd like to achieve:
- A small, mobile device (easily carried around in one hand), that counts down a fixed time (10 minutes) and then makes a noise (think alarm clock)
- Once the countdown is started, it shouldn't be possible to stop or reset it (except for removing the battery obviously)
- The device should have some kind of clock displaying the remaining time
- For budget reasons a single device can not cost more than 12€ (I plan on using 10 devices, 120€ budget)
Any help would be much appreciated!