Keyestudio RPI 4-Channel 5V Relay Shield For Raspberry Pi 4B / CE Certification Cutting Tools everything is normal

everything is normal

Programmable by mBlock

PCM andother digital audio format source decode

Physical Resolution: 1024 x 600 Resolution Range: 640 x 480 ~ 1600 x 1200 (adjustable) Plug and play

Model: Select

Keyestudio RPI 4-Channel 5V Relay Shield For Raspberry Pi 4B / CE Certification Cutting Tools everything is normalThis shield uses SONGLE relay, providing 4 channel input and output. The relays are isolated in the PCB. All the channels can control up to 24V DC or 250V AC on 10 A. It allows you to control high power components like lights and motors via Raspberry Pi 3. Just plug it directly into your pi with 5 V. You will find a LED indicates the status of the relays. We will provide installation package, source code and quickstart guide PDF. We will teach you