UniFi - Voucher Receipt Printer

Parts List

• Printer - Epson TM-T20III
  • https://www.amazon.com/dp/B07YLSTMCX
• High quality thermal paper
  • https://www.amazon.com/dp/B0CM7NWNBM?ref=fed_asin_title
• Pi - Raspberry Pi 4 (Running Raspberry Pi OS Lite)
  • https://www.adafruit.com/product/4295
• Button
  • https://www.adafruit.com/product/560
• Step Down Regulator (to power Pi from printer power supply)
  • https://www.pololu.com/product/4892

Notes

• This is written to work with a self-hosted conroller. The API calls will change if using a controller running on a UniFi Gateway.