# ESP-NOW Button Link

Day 55 of the 100 Days 100 IoT Projects collection. Board: ESP8266.

A button press on one ESP8266 lights an LED on another via ESP-NOW. Wireless input-to-output in its purest form.

## How it works

Pressing the button fires an ESP-NOW packet straight to the paired board, which lights its LED on receipt. There is no connection to establish and no network to join — the purest possible wireless input-to-output path, and a perfect first ESP-NOW experiment.

## What you'll learn

- Connectionless messaging
- Wireless input/output
- Ultra-low latency links
- ESP-NOW pairing basics

Full project (code, wiring diagram, Wokwi simulation): https://github.com/kritishmohapatra/100_Days_100_IoT_Projects/tree/main/ESP8266_LED_CONTROL_BY_PUSH_BUTTON_ESP_NOW

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