Digilent's DMM shield brings the functionality of a digital multimeter to a convenient shield form-factor. Complete with FPGA and microcontroller libraries, the DMM shield can be integrated into designs and communicates via a custom SPI protocol. It is a 5½ -digit digital multimeter with hardware designed for use with Digilent's line of microcontroller boards such as Uno32™, uC32™, WF32™, or Max32™, and FPGA boards that are equipped with the Arduino shield header such as Arty A7, Arty Z7-10, Arty Z7-20, or Arty S7. The libraries and out of box material are written for the Uno32™, uC32™, WF32™, Max32™, and Arty Z7-20. The shield is built around the HY3131 module from Hycon Technology, which is an analog front end DMM dedicated chip. The device has seven measurement functions and is factory calibrated. It can be used out of the box with the line of compatible system boards.