Introduction: D-duino QR Code Display

This project is very easy but useful.

Prepare 1 D-duino

Step 1: Follow Github Project

Then follow this project ESP8266 QRcode

Step 2: Check With Your Smartphone

Do not forget change SDA,SCL pin to D1, D2. D-duino can show a lot of information from WiFi.

You can add useful information to your code.

Then check with your smartphone.

See, I can read Helloworld.