Security Guides
Step-by-step security projects with wiring diagrams, component lists, and ready-to-deploy code.
5 guides
How to Build an ESP32-CAM Setup Portal Security Camera
Build an ESP32-CAM security camera with a setup access point, local Wi-Fi configuration page, live camera mode, and power-cycle recovery.
How to Build an ESP32 Video Doorbell
Build an ESP32-CAM video doorbell with a local Wi-Fi camera feed, physical doorbell button, passive buzzer chime, status LED, and browser live-view page.
How to Build a Laser Tripwire Alarm Demo with Arduino
Build a classroom-safe Arduino beam-break alarm demo using a low-power laser, LDR photoresistor, 10k resistor, and piezo buzzer.
How to Build an ESP32 Security Camera
Build a small ESP32-CAM security camera with a USB programmer adapter, browser upload, and a local live-view page.
How to Build an RFID Treasure Chest with ESP32
Design an ESP32 RFID treasure chest with MFRC522 reader, servo lock, buzzer, and OLED. Valid tags unlock the chest with a success tune.
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