What you'll learn
- Understand and implement the SPI (Serial Peripheral Interface) protocol.
- Identify the difference between 3.3V and 5V logic levels in sensor modules.
- Read and interpret Hexadecimal Unique Identifiers (UIDs) from RFID tags.
- Integrate third-party libraries to handle complex radio frequency communication.
What's in the kit
- Arduino Nano / Uno
- RC522 RFID Module (incl. Tag & Card)
- Breadboard
- Jumper Wires (M/F and M/M)×10
Protocol: SPI
Related projects
Project 31
RCWL-0516 Microwave Radar
Detect motion through walls and obstacles using the power of Doppler Effect radio waves!
Project 33
Single-digit 7-Segment Display
Master the building block of digital clocks by controlling an 8-LED matrix arranged in a 'figure 8' pattern.
Project 30
DS3231 Precision RTC
Build a high-precision digital clock that keeps perfect time even when the power goes out.

