Code for an Arduino UNO and Arduino UNO-PRO (see http://www.hobbytronics.co.uk/arduino-uno-pro) to interface analog instrumentation with the FAAM research aircraft data acquisition system, known as DECADES. Note that from version 4.0 onwards, the code will not work on a standard UNO due to a lack of flash code space. The UNO-PRO provides an Atmel AVR processor with larger code space and pins mapped to the original UNO processor.