What it is
The ShillehTek 8-Channel 5V Relay Module for Raspberry Pi Arduino is an 8-relay switching board that lets GPIO signals control up to eight devices independently—like eight electronically controlled on/off switches on one PCB. It’s ideal for home automation panels, multi-zone lighting, pumps/solenoids, irrigation prototypes, and test rigs where you want clean, scalable switching without wiring multiple relay boards.
Pins
Relay modules vary by revision, so refer to the silkscreen labels on the board/module and the listing photos for exact pin names and the correct Arduino/Raspberry Pi GPIO connections. In general, you’ll see a power input for the module and separate control inputs for each of the 8 relay channels.
Technical Specifications
| Specification | Value |
|---|---|
| Product type | 8-channel relay module (multi-load switching) |
| Number of channels | 8 |
| Module voltage (as titled) | 5V (see listing photos for revision details) |
| Controller compatibility | Arduino, Raspberry Pi (GPIO control) |
| Pinout / labeling | Varies by module revision; use silkscreen labels |
Frequently Asked Questions
How do I connect an 8-channel relay module to an Arduino?
Connect the module’s power input as labeled and wire each channel input to an Arduino digital output. Use the board’s silkscreen pin labels and the listing photos for the exact pin names on your revision.
Can I use this 8-channel relay module with a Raspberry Pi GPIO?
Yes—this relay module is intended for Raspberry Pi projects that need to switch multiple loads from GPIO control signals. Always follow the pin labels on the PCB and verify your wiring before powering connected devices.
What does “8-channel” mean on a relay module?
It means you can switch up to eight separate circuits independently, with one control input per relay channel—useful for multi-zone lighting, pumps, solenoids, and automation panels.
Is there a pinout or datasheet for the ShillehTek 8-channel relay module?
Relay modules can differ by revision, so the safest “pinout” reference is the silkscreen labels on your board plus the product photos. If you need project-specific wiring help, match your PCB labels to your Arduino or Raspberry Pi GPIO plan.