# Blynk Fan Control

Day 22 of the 100 Days 100 IoT Projects collection. Board: Pi Pico.

Switch a DC brushless fan from the Blynk app through a relay on the Pico W. Phone-controlled cooling in minutes.

## How it works

A button in the Blynk app sends a cloud message down to the Pico W, which switches a relay connected to the fan. The relay handles the fan's higher current while the board only handles logic-level signals. Phone-controlled airflow with two components doing what each does best.

## What you'll learn

- Switching inductive loads
- Cloud-based actuation
- Relay driver stages
- Separating logic from power

Full project (code, wiring diagram, Wokwi simulation): https://github.com/kritishmohapatra/100_Days_100_IoT_Projects/tree/main/Blynk_Controlled_DC_Brushless_Fan

Summary by SkillShop. Code and diagrams belong to the original repo.