ESP-NOW 4-Channel Relay
Smart Home · Board: ESP8266 · Day 56 of 100
Drive four relay channels wirelessly from a single ESP8266 controller over ESP-NOW. Multi-zone switching without wires.
How it works
One ESP8266 acts as the controller, sending channel commands over ESP-NOW to a second board wired to four relays. Each relay switches independently, giving you multi-zone control — lights, fans, pumps — with zero wires between the switch panel and the loads.
What you'll learn
- Multi-channel wireless control
- Relay arrays
- Wire-free home automation
- Command addressing
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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