Raspberry Pi
Raspberry Pi® does not have built-in Test and Measurement capabilities such as Analog-to-Digital Converters (ADCs), Digital-to-Analog Converters (DACs), or conditioned Digital Inputs and Outputs (DIO). However, these capabilities can be added through the 40-pin GPIO header. A device that connects directly to the 40-pin header and stacks onto the Raspberry Pi is called a HAT (Hardware Attached on Top). To bring professional-quality measurement products to the Raspberry Pi platform, MCC has developed a series of DAQ HATs. These HATs offer similar specs and accuracy as traditional USB and Ethernet-based DAQ products from MCC with resolution up to 24-bits and sample rates up to 100 kS/s.
MCC offers five products designed for Test and Measurement applications that conform to the Raspberry Pi HAT standard. These devices provide data acquisition features like analog and digital I/O in a small, stackable format. Choose from voltage measurement, voltage output and digital I/O, thermocouple measurement, and integrated electronics piezo-electric (IEPE) measurement.
MCC 118/128: Voltage Measurement DAQ HAT
- MCC 118: 8 SE 12-bit voltage inputs
- MCC 118: 100 kS/s max sample rate (320 kS/s aggregate for stacked boards)
- MCC 118: +/-10 V input range
- MCC 128: 8 SE/4 DIFF 16-bit voltage inputs
- MCC 128: 100 kS/s max sample rate (320 kS/s aggregate for stacked boards)
- MCC 128: Multiple input ranges (+/-10 V, +/-5 V, +/-2 V, +/-1 V)
MCC 134: Thermocouple Measurement DAQ HAT
- Four isolated thermocouple inputs
- 24-bit A/D converter
- 1 second update interval, minimum
- Thermocouple types J, K, R, S, T, N, E, and B supported
- Cold junction compensation
- Screw terminal connections
MCC 152: Voltage Output and DIO DAQ HAT
- Two 12-bit simultaneous voltage outputs
- 5 mA output drive, sourcing
- 0.8 V/µs slew rate
- Eight bidirectional digital bits
- 5V / 3.3V operation; CMOS input thresholds
- Programmable input polarity
- Screw terminal connections
MCC 172: IEPE Measurement DAQ HAT
- Two IEPE inputs
- Two 24-bit, 51.2 kS/s A/D converters (one per channel)
- AC coupled at ±5 V
- 10-32 and screw terminal connections for OEM support
- Synchronous ADC conversions between multiple boards
- Onboard sample buffers allow high-speed acquisition