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The AB Electronics UK Knowledge Base provides support solutions, tutorials and troubleshooting guides.
Our Raspberry Pi Expansion boards use either the I2C pins, UART or SPI pins on the Raspberry Pi 's GPIO header.
All of the other GPIO pins are available to use via the stacking header connector.
The following expansion boards use the I2C GPIO pins:
1 Wire Pi Plus and 1 Wire Pi Zero
ADC Pi
ADC Differential Pi
Expander Pi
I2C Switch
IO Pi, IO Pi Plus and IO Pi Zero
RTC Pi
Servo Pi
The following expansion boards use the SPI GPIO pins:
ADC-DAC Pi Zero
The following expansion boards use the UART GPIO pins:
RS485 Pi
Serial Pi, Serial Pi Plus and Serial Pi Zero
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