Details
- KaffeeSATS connects Lightning payments to real-world coffee machines, so Bitcoin becomes something visitors can scan, tap, unlock and taste.
- The project includes an Offline Bitcoin Switch edition using LNbits and a PIN flow, plus a ZapBox edition with LNbits, relay control and NFC Bolt Card support.
- Drop by during the day to see how Lightning, ESP32 hardware, relays, 3D printed parts and practical UX come together in one small machine.