Check out instructions @lucas0choa + @GautamBose18 shared for anyone to make their own hand wash timer using @arduino. Shared on @Hacksterio here →
https://www.hackster.io/331510/wash-a-lot-bot-a-diy-hand-washing-timer-2df500
https://www.hackster.io/331510/wash-a-lot-bot-a-diy-hand-washing-timer-2df500
