I2C, TTL, RS232, Other

Relay Modules with TTL, RS232 Interface

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Pololu Basic SPDT Relay Carrier with 12VDC Relay (Partial Kit)

Code: SKU-003254

The Pololu basic relay carrier modules allow simple control of a single-pole, double-throw (SPDT) switch from low-voltage, low-current control signals.

$ 8.95

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Shipping from $7.90

+61 more from our supplier in 7-10 days

Pololu Basic SPDT Relay Carrier with 5VDC Relay (Partial Kit)

Code: SKU-003253

The Pololu basic relay carrier modules allow simple control of a single-pole, double-throw (SPDT) switch from low-voltage, low-current control signals.

$ 8.95

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Shipping from $7.90

+117 more from our supplier in 7-10 days

SparkFun Beefcake Relay Control Kit

Code: SKU-002310

Your 5V system can wield great power with this big, beefy relay board. How does 20A on the NC contacts and 10A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control.

$ 16.95

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+60 more from our supplier in 7-10 days

SparkFun Qwiic Single Relay

Code: SKU-005288

Have you ever wanted to control something powerful or have you ever needed to turn on/off a high power device from your Arduino or another low powered microcontroller? The SparkFun Qwiic Single Relay provides you with the easiest to use relay yet.

$ 20.95

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Shipping from $7.90

+109 more from our supplier in 7-10 days