Opens in a new tab

QR scanner with ESP32

News2018-09-06
Author: Petr Šrámek

Popular WiFi and Bluetooth IC called ESP32 you can use in a lot of projects. For example like this.

ESP32 development board with camera interface and through this connector you connect the camera.

With these components, you can make QR scanner. Of course, the QR scanner is not only one possibility. This tutorial explains how to recognize some shape.

If you are able to recognize black line, you can use some feature from this project to NXP Cup and make autonomous car.

The author of this project used ESP32-CAM (Ai-Thinker) develpment board which contains camera interface.

The dev board is available on this store taobao or aliexpress for 6.60 USD + 4.17 USD shipping.

The tutorial also describes using of ESP-WROVER V1 instead of ESP32-CAM board..

The project were tested two camera modules. OV7725 and OV2640.

Webpage of project: https://github.com/donny681/ESP32_CAMERA_QR


Share the article:
Show your
Maker soul!
Buy a T-Shirt
Coffee for Chiptron
Give a boost to the next article

Related Articles

ESP32 Chip Comparison: Which to Choose for Your Project

Articles2026-05-25

ESP32, S2, S3, C3, C6, H2, C5, P4 and the upcoming S31 – which chip to choose for your project? Comparative peripherals table, use-case decision tree, software platforms overview, and tips on where to buy dev boards in Czechia.

Internet radio receiver with ESP32. Complete guide including 3D printing. Home Assistant support included.

News2025-09-23

The YoRadio project is an open-source internet radio built on the ESP32 Wi-Fi and Bluetooth chip with the ESP32-audioI2S library. It features complete documentation, a wide range of supported displays, and can be controlled via MQTT (suitable for Home Assistant).

Flipper Zero, Keysy, Proxmark? Forget about them, now there’s Chameleon Ultra. An RFID emulator that can do a lot.

News2025-08-15

The Chameleon Ultra is a compact RFID emulator that can clone LF (125 kHz) and HF (13.56 MHz) cards. It can read, write, and be used as a communication analyzer. It supports various cracking methods and is an open-source project…

We program ultra-low-cost microcontrollers CH32V00x both in Arduino IDE and without it (Linux). Guide.

Articles2025-09-08

CH32V microcontrollers – you’ve probably heard of them. They are sold at a ridiculously low price but come with a very decent set of features, plus they are available in a solder-friendly package. Among the peripherals, you’ll find not only…

Hacking the PY32: Extracting Firmware from a Cheap AliExpress LED Toy

Articles2026-06-10

We used AI to hack a toy from AliExpress. We identified the type and tried connecting to its memory to read it. Although it didn’t work, I gained a lot of useful insights.

Weather radar and aircraft radar on one round display

Articles2026-09-16

MeteoPlaneRadar 0.7.0: aircraft radar, weather radar, forecast, spot electricity price and the grid mix on a round 2.1″ display. Flashed from a browser.

Trends