3 Projects
Security Projects
Explore beginner-friendly projects using Security. Run them in the simulator, tweak the code, and learn step by step.
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IoTSim EditorOct 8, 2026
Build a Light Meter and Alarm with a Raspberry Pi Pico
Build an optical light meter with the Raspberry Pi Pico. Measure real-time ambient illumination using an LDR analog sensor on the RP2040 ADC and trigger audio-visual warnings when sudden darkness occurs.
Raspberry Pi PicoSensors +3

I
IoTSim EditorOct 6, 2026
Build a Keypad Door Lock with an Arduino Mega
Construct an electronic PIN security access system using an Arduino Mega. Features a 4x4 matrix keypad, masked PIN entry on an I2C LCD1602 display, dual-color LED status indicators, and buzzer audio feedback.
Arduino MegaKeypad +3

I
IoTSim EditorOct 3, 2026
Build a Motion Security Chime with an Arduino Nano
Build a compact perimeter intruder alarm and entrance chime with the Arduino Nano V3. Interface an HC-SR501 PIR motion sensor, an SPDT arming slide switch, and a dual-tone piezo sounder with serial status logging.
Arduino NanoSensors +3
