The Pitaka PinButton case adds three customizable NFC buttons and MagSafe compatibility to your Galaxy S25 Ultra. Check it ...

[John Boxall] shows how to add four buttons using one ADC pin. The concept is nothing new. The buttons make up an R2R resistive ladder. When one of them is pressed, it completes the circuit for ...

To do so, follow the instructions listed below: If you're unsure of what to go with or need a little bit of inspiration, you ...