nerves-time / nerves_time_rtc_ds3231

NervesTime support for the Maxim DS3231

NervesTime.RTC.DS3231

NervesTime.RTC implementation for popular Maxim Integrated Extremely Accurate Real-Time Clock chip with TCXO. [An "Oldie-but-Goodie". Dallas Semiconductor was acquired by Maxim in 2001]

Features of the DS3231 device other than the time and date registers [i.e. Alarms, Interrupts, Square Wave output and Temperature measurement] are untouched by this plugin, and are therefore available to other user-written Elixir apps.

The following are supported:

• DS3231

Using

First add this project to your mix dependencies:

def deps do
  [
    {:nerves_time_rtc_ds3231, "~> 0.1.0"}
  ]
end

And then update your :nerves_time configuration to point to it:

config :nerves_time, rtc: NervesTime.RTC.DS3231

It's possible to override the default I2C bus and address via options:

config :nerves_time, rtc: {NervesTime.RTC.DS3231, [bus_name: "i2c-2", address:
0x69]}

Check the logs for error messages if the RTC doesn't appear to work.