Circuito digital puro a 5 V con un único pulsador para avance por toque corto, confirmación por toque largo de 2 s, visualización de 4 opciones por LED y transmisión DTMF mediante HT9200A.

Rebuilt two-layer PIC16F628A DTMF relay audio switch with 12 V input, MT8870 decoding, PIC16F628A control, relay driver, and audio switching path.

Welcome to your new project. Imagine what you can build here.

Learn how to use AI Auto Layout on this ESP32 Espresso Smart Scale! In one click you’ll see AI Auto Layout perform magic. Pay close attention to how we recommend creating rulesets, zones, and fanouts. By copying the setup in this example on your own project, you’ll have a fully routed board in no time!