How To Setup 4ch Relay Switch With Blynk
$2 for 10PCBs (Any solder mask colour): https://jlcpcb.com
This Video About How To Upload Code And Setup Blynk Application For ESP8266/NodeMCU Board
Visit Blynk Guide
https://www.blynk.cc/getting-started
And Here Is Code For This
https://github.com/ElectroIoT/4ch_rel...
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Check More Project On My Hackster io
https://www.hackster.io/Manoranjan2050
Download Gerber File
http://bit.ly/2kePWHM