Blynk Relay Control
Smart Home · Board: Pi Pico · Day 18 of 100
Control a relay from the Blynk IoT app on your phone via the Pico 2W. Cloud dashboards with zero HTML required.
How it works
Instead of building a web page, you drop a button widget into the Blynk app and link it to a virtual pin. Pressing it sends a message through Blynk's cloud to the Pico 2W, which toggles the relay. No HTML, no hosting — the cloud handles the plumbing.
What you'll learn
- IoT cloud platforms
- Virtual pins
- App-to-device messaging
- No-code dashboards
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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