“So…like almost every other parent in the first world, I struggle to keep my son (8) off all the screens. Since I’m lazy and don’t like to argue, I created a countdown timer to monitor how much time he gets. I have this one to count down allocated time for the week, but it’d be super easy to change it to a daily limit. This instructable will help you set up a similar clock for your kid - or yourself. It includes a large seven-segment display, an arcade button to start/pause the count, and a reset button. It uses an arduino.Seeing as how I’m a librarian and all, I should tell you that you can do this tutorial using the tools and equipment we have at the Johnson County Library MakerSpace in Overland Park, KS. Also, if I can do this, you can, too. Trust me on this one.”