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thermoPrinter
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thermoPrinter/README.md

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Thermo Printer Interface / Remote Control

Overview

This is about a device that can be called by WLAN / TCP/IP and prints on a cheap thermo printer using paper rolls.

Hardware used:

  • ESP-CPU: -- Wemos ESP32 LoLin (any ESP32 should work), we are using UART1 (GPIO26=Tx) -- Wemos ESP8266 (any should work), we are using UART1 Tx only (GPIO2=Tx)
  • GOOJPRT QR204 Micro Embedded Printer with RS232/TTL and USB-Interface -- TX, RX, GND connected to ESP32 -- POWER connected to seperate power supply (+5V/GND)

How to install this app

  • Install and start mos tool
  • Switch to the Project page, find and import this app, build and flash it: