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Green circuit board with relay module and pin headers

Traditions (Generic)

Traditions (Generic) 8266 Relay Shield D1 Mini Module computer power cord

SKU CH-FC4R-GPXEX

A single-channel relay shield adds switched power control to an 8266 D1 Mini development board

  • One-channel relay shield controls high-power loads from a D1 Mini
  • 8266 development board integration simplifies IoT project wiring
  • Relay module design isolates microcontroller from switched circuits
  • Compact shield format plugs directly onto D1 Mini headers

Relay Shield for D1 Mini

This relay shield adds a single switched output to a D1 Mini development board based on the 8266 platform. It is intended for makers and engineers who need to control one mains or low-voltage circuit from a compact Wi-Fi enabled module.

One Channel Capacity

The board provides one relay channel, so it comfortably handles a single load such as a lamp, fan or small appliance. Projects that require switching multiple independent circuits will need additional shields or a multi-channel alternative.

Highlights

  • One-channel relay shield controls high-power loads from a D1 Mini
  • 8266 development board integration simplifies IoT project wiring
  • Relay module design isolates microcontroller from switched circuits
  • Compact shield format plugs directly onto D1 Mini headers

Specifications

No published specifications for this item yet.

Questions about this item

Will the 8266 relay shield draw too much current from an older USB power supply I plan to reuse?

The module is designed for the D1 Mini form factor and typically draws only the coil current of a single relay channel, which is well within the capability of most standard 5 V USB supplies.

How can I confirm the 8266 relay shield is switching correctly after I wire it up?

Apply a logic signal to the control pin and listen for the audible click of the relay contacts; a multimeter across the output terminals will show continuity change in time with the signal.

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