Learn IoT from zero with ESP32 – real hardware, real code, no simulators.
This is Phase 1 of the Full-Stack IoT Engineer Bootcamp by IoT Bhai: electronics basics → Arduino IDE setup → GPIO, PWM & ADC → millis() & interrupts → sensors (DHT22, HC-SR04, MQ-2).
Start with the IoT Developer Roadmap, then follow the lessons in order. New lessons every week.
Code & written guides:
iotbhai.io