SparkFun Qwiic Dual Solid State Relay

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SparkFun Qwiic Dual Solid State Relay — manufacturer product photograph
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Control two AC switching channels over I2C with this Qwiic solid-state relay board. An ATtiny84 handles commands, and zero-cross triggering defines how the relays switch an AC waveform. Address options support bus configuration, providing an interface component for a correctly rated, enclosed installation with appropriate wiring and load selection.

Before you buy

Verify load, thermal management, enclosure and isolation requirements; relay headline ratings do not establish a complete installation’s capability.

SparkFun SKU: COM-16810 · Category: Solid-state relay interfaces

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Official product specifications and documentation

EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.