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PROJECT

AI-Powered Waste Segregation with Arduino UNO Q

By Rinme Tom

Build an automatic waste segregation system using Arduino UNO Q, Edge Impulse & a servo motor. Sorts Paper, Plastic & Cardboard, full circuit & code inside.

PROJECT

ESP32-CAM WhatsApp Image Alert System

By Rinme Tom

Learn how to build an ESP32-CAM WhatsApp system that captures and sends images in seconds using CircuitDigest Cloud API. No GSM needed

PROJECT

Build a Handheld Arduino Retro Game Console

By Rinme Tom

Build a pocket-sized Arduino game console with 10 arcade games, Snake, Tetris, Pacman & more. Full wiring diagram, Arduino code & assembly guide included.

PROJECT

Build a Pocket Optocoupler Tester for Fast Diagnostics

By Rinme Tom

Build a simple DIY optocoupler tester circuit with two LEDs and a 3.7V battery. Test 4-pin and 6-pin optocouplers instantly, no instruments needed.

PROJECT
70

ESP32 WhatsApp Alerts Without a SIM Card

By Rinme Tom

Learn how to build an ESP32 WhatsApp notification system using CircuitDigest Cloud API. Send real-time sensor alerts to your phone, no SIM card, no WhatsApp Business API needed. Step-by-step tutorial with code.

PROJECT
64

Build a USB Game Controller with Arduino Uno R4

By Rinme Tom

Learn how to build an Arduino game controller with our complete DIY guide. Includes circuit diagram, Arduino code, wiring instructions, and USB setup. Free GitHub code download.