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Green PCB expansion board with GPIO header and LED ports

anicorn

anicorn PCF8591 GPIO Test Expansion Board

SKU CH-GREA-Z58DQ

Tests Raspberry Pi GPIO pins with LED indicators and an on-board ADC/DAC chip

  • Tests all Raspberry Pi GPIO pins for faults
  • On-board PCF8591 ADC/DAC chip reads analog sensors
  • Built-in LED protects ports during testing
  • Compatible with every Raspberry Pi model
  • Expands GPIO access for easy sensor connection

Raspberry Pi GPIO Test Board

This expansion board exposes every GPIO pin on a Raspberry Pi so you can verify that each pin functions correctly. An on-board ADDA chip based on the PCF8591 provides analogue-to-digital and digital-to-analogue conversion for sensor testing. The module is compatible with all Raspberry Pi models and includes LED indicators for visual port-status feedback.

For hardware debugging and education

Engineers and students who need to validate GPIO behaviour or prototype analogue sensor circuits will find this board useful. It is not suited for production deployments where a permanent HAT with fixed I/O assignments is required, nor for projects that demand isolated or buffered GPIO lines beyond what the bare header provides.

Plugs directly onto the Pi header

The board sits on the 40-pin GPIO header and draws power from the Raspberry Pi itself, so no external supply is needed. It leaves the remaining header pins accessible for stacking additional HATs or jumper wires, freeing you to connect sensors, actuators or logic analysers while the test board remains in place.

Highlights

  • Tests all Raspberry Pi GPIO pins for faults
  • On-board PCF8591 ADC/DAC chip reads analog sensors
  • Built-in LED protects ports during testing
  • Compatible with every Raspberry Pi model
  • Expands GPIO access for easy sensor connection

Specifications

No published specifications for this item yet.

Questions about this item

Which Raspberry Pi models does the PCF8591 expansion board support?

The board is applicable to all models of Raspberry Pi, exposing every GPIO pin for testing.

Does the on-board ADC/DAC chip require any extra wiring to protect the expansion board's LED?

The on-board ADDA chip works with the exposed GPIO pins to enable protection of the expansion board's LED without extra wiring.

How can I verify the PCF8591 board is functioning correctly after connecting it?

Use the exposed GPIO pins to test whether each GPIO is functioning properly and confirm the on-board ADDA chip responds to ADC/DAC sensor input.

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