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Day 55 of 100

ESP-NOW Button Link

Wireless · Board: ESP8266 · Day 55 of 100

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

The complete build guide lives in the original repo. Ours is a summary — the real thing is one click away.

Open full project on GitHub ↗

Summary by SkillShop. Project by Kritish Mohapatra — code and diagrams belong to the original repo.

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