3 ms·
Make it live on the web. Better yet, make it live on a device. Two buttons, button presses are valid only once a day, LED confirmation, USB read-out. Make the c
by hengheng 13y ago
Make it live on the web. Better yet, make it live on a device. Two buttons, button presses are valid only once a day, LED confirmation, USB read-out. Make the case beautiful, done. Standard AAA Battery will live for years, data can be written to flash.