Arduino MCP3x6x Library

Arduino library for Microchip MCP346xR / MCP356xR 16/24-bit SAR analog-to-digital converters over SPI.

Supported devices

• MCP3461R / MCP3462R / MCP3464R (16-bit)
• MCP3561R / MCP3562R / MCP3564R (24-bit)

Installation

Use the Arduino Library Manager and search for MCP3x6xR, or clone this repository into your libraries folder:

git clone https://github.com/nerdyscout/Arduino_MCP3x6x_Library.git \
  ~/Arduino/libraries/MCP3x6xR

Quick example

#include "Arduino_MCP3x6x_Library.hpp"

MCP3461 mcp;

void setup() {
  Serial.begin(115200);
  mcp.begin();
}

void loop() {
  int32_t raw  = mcp.analogRead(MCP3x6x_CH0);
  double volt  = raw * mcp.getReference() / mcp.getMaxValue();
  Serial.println(volt, 6);
  delay(1000);
}

More examples are in the examples/ folder covering single-ended, differential, scan, and streaming modes.

Breakout PCBs

Breakout PCBs for this project live in the pcb/ folder, with KiCad sources for Adafruit, Arduino, and Sparkfun-style boards.

Board	Top	Bottom
Adafruit Feather
Arduino Uno
Sparkfun ProMicro

Documentation

Full API reference is generated with Doxygen and hosted at:

https://nerdyscout.github.io/Arduino_MCP3x6x_Library/

Build locally with doxygen Doxyfile.

License

MIT — see LICENSES/.