▶ Product Description

The Measurement Computing MCC 128 is a voltage HAT (Hardware Attached on Top) board designed for use with Raspberry Pi®. It provides eight single-ended (SE) or four differential (DIFF) analog inputs with the following input ranges (+/-10 V, +/-5 V, +/-2 V, +/-1 V). A bidirectional clock I/O pin lets users pace operations with an external clock signal or with the board’s internal scan clock. Use software to set the direction. The external digital trigger input is software-configurable for rising or falling edge, or high or low level. The MCC 128 is powered with 3.3 V provided by the Raspberry Pi through the GPIO header connector.

HAT configuration parameters are stored in an on-board EEPROM that allows the Raspberry Pi to automatically set up the GPIO pins when the HAT is connected. The open-source MCC DAQ HAT Library of commands in C/C++ and Python allows users to develop applications on the Raspberry Pi using Linux. The MCC DAQ HAT Library supports operation with multiple MCC DAQ HATs running concurrently. Console-based and user interface (UI) example programs are available for each API.

▶ Features

• 8 SE/4 DIFF 16-bit voltage inputs
• 100 kS/s max sample rate (320 kS/s aggregate for stacked boards)
• Multiple input ranges (+/-10 V, +/-5 V, +/-2 V, +/-1 V)
• Onboard sample buffers allow high-speed acquisition
• External scan clock
• External digital trigger input
• Screw terminal connections

▶ Support Materials

• Datasheet

▶ Demo / Project Links

·         Hardware Overview

·         Installation Manual

·         Installing and Using the Library

·         C library reference

·         Python library reference

·         Open-source Library for C/C++ and Python

▶ What's Included

• One MCC DAQ HAT (choose between MCC 118 and MCC 128)
• 2x20 Header connector (plugs into the 40 pin GPIO connector on the Pi board)
• Jumpers (3)
• Standoffs (4)
• Screws (4)
• Nuts (4)
• Printed insert: Getting Started with MCC DAQ HATs
• MCC packaging assembly/foam, etc.