This is an old revision of the document!
Parallax Single Relay Board
Product Description
Single Relay Board Overview:
The Single Relay Board can be used to turn lights, fans and other devices on/off while keeping them isolated from
your microcontroller. The Single Relay Board allows you to control high-power devices (up to 10 A) via the on-board
relay. Control of the relay is provided via a 1 x 3 header – friendly to servo cables and convenient to connect to \\many development boards.
Key Features:
Control high-power devices up to 10 A with a simple high/low signal
Provides isolation between the microcontroller and device being controlled
Screw terminals for relay connections
3-pin servo-style header for power/signal interface
LED indicator provides visual feedback
Single Relay Board Application Ideas:
120 VAC brushless fan/lighting control
12 VDC automotive applications
Single Relay Board Details:
Voltage requirements: 5 VDC (Relay Power), 3.3-5 VDC (Input Signal)
Current requirements: ~85 mA (Relay Power)\Communication: Logic High/Low (3.3–5 VDC)
Dimensions: Approximately 33.8 x 26.6 x 17.6 mm*
Operating temp range: -13 to +158 °F (-25 to +70 °C)
SKU 27115
Single-Relay-Board-Datasheet
SingleRelayBoardGuide-v1.1