Banggood - 5V 2-Channel Relay Module with Optocoupler
★★★★★
$8.99
out of stock
Banggood.com
as of January 2, 2024 11:11 am
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Learn how to use and control a relay module:
- Guide for Relay Module with Arduino
- ESP32 Relay Module – Control AC Appliances (Web Server)
- ESP8266 Relay Module – Control AC Appliances (Web Server)