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.

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.

Build an Arduino robotic arm with servo motors, 3D printed parts, circuit diagram, and complete code. Step-by-step DIY tutorial for pick and place robotic arm operations.

Complete ESP32 text to speech using AI guide. Learn ESP32 TTS library setup, circuit wiring, code examples for voice-enabled IoT projects with MAX98357A amplifier.

Build a Joule Thief circuit to power LEDs from dead batteries. Complete circuit diagram with toroid, working principle, components list & step-by-step assembly guide.

Master ESP32 CAM currency recognition with our Arduino guide. Step-by-step: Edge Impulse training, circuit setup, code deployment for Indian note detection.