Linux.I2C.MCP342X, driver for A/D

Clojure library for talking to the MCP342x family of A/D converters using I2C :

• MCP3421
• MCP3422
• MCP3423
• MCP3424
• MCP3425
• MCP3426
• MCP3427
• MCP3428

Relies on helins/linux.i2c.

Usage

This is an overview.

The detailed API is available on Cljdoc.

In short, without error handling :

(require '[helins.linux.i2c         :as i2c]
         '[helins.linux.i2c.mcp342x :as mcp342x])


(with-open [bus (i2c/bus "/dev/i2c-1")]

  (i2c/select-slave bus
                    (mcp342x/address true
                                     false
                                     true))

  (mcp342x/configure bus
                     {:mcp342x/channel    2
                      :mcp342x/mode       :continuous
                      :mcp342x/pga        :x1
                      :mcp342x/resolution :16-bit})

  (mcp342x/read-channel bus
                        :16-bit)

  => {:mcp342x/channel    2
      :mcp342x/micro-volt 913000
      :mcp342x/mode       :continuous
      :mcp342x/pga        :x1
      :mcp342x/resolution :16-bit})

License

Copyright © 2017 Adam Helinski

Licensed under the term of the Mozilla Public License 2.0, see LICENSE.