Home
About
The Author
Contact Us
Write for Us!
Advertise With Us!
Legal
Privacy Policy
Terms of Use
DMCA
CCPA – California Consumer Privacy Act
Home
Projects
Arduino Projects
ESP32 Projects
Raspberry Pi Projects
ESP8266 Projects
PIC Projects
STM32 Projects
BeagleBone Projects
Tutorials
Arduino Tutorial
ESP32 Tutorial
Raspberry Pi Tutorial
ESP8266 Tutorial
PIC Tutorial
STM32 Tutorial
nRF52 Tutorial
BeagleBone Tutorial
8051 Tutorial
Features
General
Guest Post
Reference
Tools
PIC Assembly Instruction Set | Midrange Devices
Featured
How to Use LM35 Temperature Sensor with Arduino and ESP32: Complete Guide with Example Projects
Arduino Digital Tug of War
Arduino Parking Sensor Project
Arduino Flappy Bird Dot Matrix Project
Dot Matrix Droplets Project
Clap Switch for RGB LEDs using Arduino
Flame Sensor Project: Comprehensive Guide
Arduino Compass with HMC5883L Magnetometer
Wireless Controller for Bluetooth RC Car
Obstacle-Avoiding Arduino Robot
Home
/
Projects
/
STM32 Projects
STM32 Projects
Not Found
Apologies, but the page you requested could not be found. Perhaps searching will help.
Contents
×
1. Overview of the Module
2. Understanding the 6-Pin Header & Jumper Settings
6-Pin Header (left → right)
Jumper Selection
3. Power Requirements
4. Wiring the Module to Arduino
Arduino UNO / Nano WIRING
5. Arduino Code (Tested & Working)
6. Confirming Baud Rate
7. Reset Pin (RST) Details
8. Testing QR & Barcode Scanning
✔️ Use 5V power
✔️ Ideal scan distance
✔️ Best QR size
✔️ Avoid shiny screens and reflections
9. Using USB Modes (Optional)
A. USB-UART Mode
B. USB-HID Mode
10. Troubleshooting
❌ Scanner reads no QR codes
❌ Only 1D barcodes read
❌ Arduino receives gibberish
✔ Baud rate mismatch ✔ Long wires → noise
❌ Scanner freezes
11. Bonus: Auto-Recover Watchdog
12. Testing Other Modes and Configurations
Finished!
→
Index