NodeMCU/IoT Mastery Path¶

Mastery Path

BOOTCAMP

VINOD BHANUJA

A structured, module-wise NodeMCU and IoT development training program that takes you from your first blinking LED to designing production-grade, fleet-managed IoT devices — starting with the Arduino IDE and ESP8266/ESP32 boards, with real, compilable Arduino C++ code in every module and a hands-on project at the end of each level.

No hardware required to start. Every Level 1 module walks through real Arduino-core APIs for the ESP8266/ESP32 with carefully reasoned, syntactically correct code — clearly noted where it has not been flashed to physical hardware in this environment — so you can follow along and adapt it the moment you have a board and USB cable.

How the program is organized¶

Level	Focus	Modules
Level 1 · Entry	Arduino IDE setup, GPIO, ADC, PWM, Serial debugging, WiFi station mode, DHT11 sensor	9 topics + 1 capstone
Level 2 · Intermediate	MQTT, cloud IoT platforms, deep sleep, OTA updates, interrupts, I2C/SPI	9 topics + 1 capstone
Level 3 · Advanced	REST APIs on ESP32, TLS basics, multi-sensor buffering, watchdog timers	9 topics + 1 capstone
Level 4 · Master	Production device design, fleet management, OTA at scale, power budgeting, edge vs. cloud	9 topics + 1 capstone

How to use this site¶

Work through each level in order — later modules assume earlier ones.
Every Level 1 topic page has real Arduino C++ sketches for the ESP8266/ESP32 Arduino core — read them alongside the Arduino ESP8266 and Arduino-ESP32 documentation, and try them on a real NodeMCU or ESP32 dev board when you have one.
Each level ends with a capstone that combines everything learned in that level.
Use the search bar (top of the page) to jump straight to a topic.

Start here → Level 1 · Entry

🎥 Prefer video? Watch the Mastery Path video series on YouTube — Shorts and full walkthroughs of these lessons.