The Red Pitaya is a credit card-sized, open-source test and measurement board that can be used to replace most measurement instruments used in electronics laboratories. The device, based on Linux, includes an FPGA, digital signal processing (DSP), dual core ARM Cortex processor, signal acquisition and generation circuitry, micro USB socket, microSD card slot, RJ45 socket for Ethernet connection, and USB socket – all powered from an external mains adaptor. Red Pitaya offers free loan boards for use in the Open Hardware design competition. For more information, please see the Red Pitaya page.