Summary of 8 Channel Relay Board Using Arduino
This article describes an 8 Channel Relay Board designed for easy integration with microcontrollers and analog circuits, supporting both TTL and CMOS voltage levels. It allows control of eight SPDT relays with a trigger voltage of 2 to 15 VDC and is powered by a 12 VDC supply. Each relay can handle up to 5 A at 230 VAC. The board features LED indicators for relay status, screw terminal connectors for output and auxiliary power, and mounting holes for secure installation. Its PCB dimensions are 152 mm by 60 mm.
Parts used in the 8 Channel Relay Board:
- 8 SPDT Relays (5 A @ 230 VAC)
- 12 VDC Power Supply input
- Input Header Connector (for power and trigger voltage)
- LED Indicators (one per relay channel)
- Screw Terminal Connectors (for relay output and auxiliary power)
- PCB (152 mm x 60 mm)
- Mounting Hardware (for four 3.2 mm holes)
| Description |
8 Channel Relay Board provides an easy and practical method to connect 8 relays for switching purposes in your project. Voltage level support for both TTL and CMOS is provided by the input. Simple interface for projects using Microcontrollers and analog circuits.
Specifications:
Input supply 12 VDC @ 336 mA
Output eight SPDT relay
Relay specification 5 A @ 230 VAC
Trigger level 2 ~ 15 VDC
Header connector for connecting power and trigger voltage
LED on each channel indicates relay status
Screw terminal connector for easy relay output and aux power connection
Four mounting holes of 3.2 mm each
PCB dimensions 152 mm x 60 mm
For more detail: 8 Channel Relay Board Using Arduino
