When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
4 Channel Relay Board Module for Raspberry Pi, Power Relay Module for Raspberry Pi 4B/3B+/3/2B (No Programming Required/Programmable). 4 Channel Relay Hat Board For Raspberry Pi is one of the "docker pi" module.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.