**Parallax Single Relay Board**{{ ::27115a.png.jpg?400|}}

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.\\
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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\\
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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\\ 
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{{ ::27115-single-relay-board-datasheet.pdf |Single-Relay-Board-Datasheet}}\\
{{ ::27115-singlerelayboardguide-v1.1.pdf |SingleRelayBoardGuide-v1.1}}\\