Makers, hobbyists and electronic enthusiasts searching for a project to keep them busy this weekend may be interested in a new DIY custom mechanical keypad complete with TFT LCD display ...

In this version, you'll be using a keypad instead of a ... to the setup and change the code to display the waste level on the LCD instead of just the Arduino IDE's serial monitor.

Instead, [Ivan] decided to drive it directly from an Arduino Uno ... RAM and flash. The code is available on Github. If you need inspiration for your own controllerless LCD driver.