Arduino UNO RFID Stepper Motor Kit 35+ Components
$24.99
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ARArduino
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Details
Build access control systems, motion-triggered cabinets, and servo-actuated mechanisms on your first week of Arduino. This 35+ piece kit includes every component, driver board, and passive you need to work with SPI, I2C, and PWM in a single build session. No scrounging for parts.
The RC522 RFID reader communicates over SPI, the LCD1602 uses an I2C backpack, and the stepper runs through a dedicated ULN2003 driver board. Three real bus protocols, one kit. The CH340-based UNO R3 programs directly in Arduino IDE or PlatformIO over USB, and every component ships with working example sketches.
Things to build with this
- RFID deadbolt prototype: scan a registered card with the RC522, trigger the ULN2003 to spin the 28BYJ-48 exactly 90 degrees, and display 'ACCESS GRANTED' or 'DENIED' on the I2C LCD in real time
- PIR-armed sensor cabinet: PIR wakes the UNO from sleep, the HC-SR04 measures door gap distance in centimeters, and the LCD timestamps the last intrusion event using millis(), all without any external connectivity
- Timed servo feeder with thermal cutoff: SG90 opens a food gate on a repeating interval set by a button, while the DHT11 monitors ambient temperature and holds the gate closed above a threshold you define in firmware
Key Features
- Arduino UNO R3 (CH340): USB programmable, 14 digital I/O, 6 analog inputs, 5V/3.3V onboard power
- RC522 RFID module: 13.56MHz SPI interface, includes 2 ISO 14443A cards and 1 key fob, compatible with MFRC522 library
- 28BYJ-48 stepper motor: 5V, 64-step, paired with ULN2003 driver board for direction and speed control
- SG90 micro servo: PWM-controlled, 180-degree range, rated for lightweight latches, arms, and gates
- LCD1602 display: 16x2 character screen with I2C backpack soldered on, 2-wire connection via SDA and SCL
- Sensor suite: HC-SR04 ultrasonic (distance), DHT11 (temperature and humidity), PIR (motion), photoresistor (light level)
- Full passives pack: breadboard, jumper wires, assorted LEDs, resistors, and tactile buttons
Frequently Asked Questions
Do I need any prior electronics experience to start?
No. The example sketches cover each component individually before combining them. If you can install Arduino IDE and upload a sketch, you can have RFID cards reading and LEDs responding within an hour.
Can the 28BYJ-48 stepper actually drive a real door lock?
It outputs around 34 mN/m of torque, which is enough for lightweight model latches and 3D-printed mechanisms. It will not move a heavy deadbolt directly. For real door hardware, add a gear reduction stage or swap in a solenoid.
Is the LCD1602 wired for I2C or parallel in this kit?
It ships with an I2C backpack already soldered on, so it uses only SDA and SCL instead of 6 to 10 parallel pins. Use the LiquidCrystal_I2C library and run an I2C scanner sketch first. The address is usually 0x27 or 0x3F.
How many RFID tags are included, and can I add more?
Two ISO 14443A cards and one key fob. All three are writable with the MFRC522 library. Any standard 13.56MHz MIFARE card or fob will also work if you need to add more authorized tags later.
Things to build with this
Real builds. Time and difficulty included.
Weekend
AI-controlled robot arm that sorts your desk
Connect it to Claude, point a camera at your desk, and let it pick up pens and put them back in the holder. Gloriously unnecessary.
Easy
Line-following robot for your hallway
Tape a black line from your office to the kitchen. The robot follows it carrying your coffee mug. Will your cat attack it? Probably.
Medium
Gesture-controlled car
Strap an accelerometer to your hand and steer the robot car by tilting. Makes you feel like a Jedi. Kids will never give it back.
Weekend
Security patrol bot
Program a route through your house. Add a camera. Stream to your phone. Your dog will be confused, but your house will be watched.
Guides for this product
Setup walkthroughs and reviews from our blog.
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