Code door lock
A four-digit code entered on three keys, a servo latch, correct/wrong LEDs and a safety measure that locks itself after three wrong attempts.
Medium50 minutesarrays and comparisonServo libraryedge detectionfunctions
Parts
- ☐ Arduino Uno
- ☐ SG90 servo
- ☐ 3 × push button
- ☐ Green and red LED, 2 × 220 Ω
- ☐ Passive buzzer
- ☐ Breadboard and jumper wires
This project is paid content
The wiring diagram, annotated code, simulator and extension ideas unlock after purchase.
This project · 59 ₺All projects · FİYAT SOR
Buy
Sign up for free or log in first to buy.
Join for free and try the free sample project first.