I2C Analogue Board Kit now available


We’ve been offering our Interface Board Kit and I2C Port Extender Kit for some while, and our I2C Analogue board is now available.

The Quick2Wire PCF8591 I2C Analogue Board has four 8-bit Analogue Inputs and one 8-bit Analogue Output.

You can use the boards to measure four voltages and control one output voltage. A simple Python API allows you to control the on-board PCF8591 chip and access all of its features.

The board uses our I2C bus connectors. It is intended for use with our Interface Board. The product is supplied in kit form, so you will need to assemble it yourself. The basic kit includes a connector cable but not a Raspberry Pi or an Interface board.


We’ve also released new versions of our software libraries on GitHub; these are not specific to our hardware, but should work with any Raspberry Pi.

Our Python library allows any user (not just root) to access the Pi’s GPIO ports, and I2C and SPI buses. The Python library relies on our gpio-admin software, which is now available as a debian package.

Things are moving fast; we’ve just released a new version of the library with epoll/select support, so you can easily write interrupt-driven programs, and we have completed software support for the pcf8591 analogue board which is shipping now.