# Temperature LED Indicator

Day 43 of the 100 Days 100 IoT Projects collection. Board: ESP32.

A DHT22 on the ESP32 maps temperature to LED colors. At-a-glance climate feedback.

## How it works

The DHT22's temperature reading is sorted into bands — cool, comfortable, warm, hot — and each band lights a different LED color. You read the room's climate at a glance without parsing a single digit.

## What you'll learn

- Sensor-to-color mapping
- Temperature banding
- Ambient information display
- DHT22 vs DHT11 accuracy

Full project (code, wiring diagram, Wokwi simulation): https://github.com/kritishmohapatra/100_Days_100_IoT_Projects/tree/main/Temperature_Based_LED_Indicator_(MicroPython_ESP32)

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