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Arduino Thermal printer

Control a thermal printer with Arduino

Purpose of this tutorial:

In this tutorial we will see how to send data from Arduino card to a thermal printer: If you press the push button , the printer prints the word ‘Arduino’.

Components required

  • Arduino

  • QR701 thermal printer 5V-2A charger

  • Test plate

  • Connecting wires

Mounting

To perform the assembly, we connect:

  • the VH pin of the printer to the (+) terminal of the charger

  • the first GND pin of the printer to the GND pin of the Arduino board

  • the second GND pin of the printer to the GND pin of the Arduino card

  • the TR pin of the printer to pin 6 of the Arduino card

Program

This is the program that prints data sent from the Arduino card to the printer.




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