This Raspberry Pi Hat is an updated version of my popular hat found HERE. It has been completely redesigned to allow for easier manufacture and lower cost. It now uses a low-profile 40-pin SMD header and comes with a stacking header included. Functionality is unchanged and it is fully compatible with previous versions.

This pi hat is based on the Microchip MCP3208 A/D Converter and has (8) 12-Bit channels accessed via SPI. It supports a sample rate of 100 ksps and has 8 analog inputs in single-ended mode or 4 inputs in differential-pair mode. It has a self-healing poly fuse on the 5V line, filter capacitors, and a power LED. MAX analog input voltage is 5.2v.

MCP3208

• 8 analog input channels 100 ksps max. sampling rate at VDD = 5V
• 12-Bits of resolution (when powered with 5V.)
• Max analog input voltage = 5.2v
• Analog inputs programmable as single-ended or pseudo-differential pairs
• On-chip sample and hold SPI serial interface (modes 0,0 and 1,1)
• Low power CMOS technology 500 nA typical standby current, 2 µA max. 400 µA max. active current at 5V Industrial temp range: -40°C to +85°C

BOARD FEATURES

• 3.3V, 5V, and GND connection terminals
• Board can back-power Raspberry Pi via 5V and GND connection terminals
• Self-healing poly fuse to prevent overcurrent damage to Raspberry Pi
• Filter capacitors on 5V input/output line
• Green power LED
• High-quality screw-terminals on all channels (COLOR MAY VARY)
• Hardware or Software SPI, selectable via solder-jumpers.
• SPI CEO or CE1 selectable via solder jumper
• Footprint for EEPROM and supporting passive components to allow you to turn into true rPI HAT (EEPROM and passives optional.)
• Stackable header INCLUDED

NOTE: This board ships with screw-terminals un-soldered, some light soldering is required to complete assembly of the hat. You can optionally elect to have the hat shipped to you completely assembled for a nominal fee by selecting the option on the right.

All SMD components are pre-assembled, including the EEPROM and related passive components if you select to add them, regardless of the options selected.

You can find an example python script on my github site, linked in the documentation section. You will need to install the MCP3208 Python library for the example script to work:

NOTE: The mcp3208 library used by the examples was removed by the creator. You can find a workaround documented in my github repository here:

https://github.com/cburgess5294/BurgessWorld/blob/master/MCP3208_Examples/Using_The_MCP3208