ggsv2 v0.1.1

View Source GGSV2

Hex version

Driver for the Grove - Multichannel Gas Sensor v2

installation

 Installation

This package can be installed by adding ggsv2 to your list of dependencies in mix.exs:

def deps do
  [
    {:ggsv2, "~> 0.1"}
  ]
end

sample-usage

 Sample usage

using-sensor-commands

 Using sensor commands 

{bus_name, device_addr} = GGSV2.Comm.discover
i2c = GGSV2.Comm.open(bus_name)
GGSV2.PREHEAT.activate(i2c, device_addr)
GGSV2.GAS.read_no2(i2c, device_addr)
GGSV2.GAS.read_c2h5ch(i2c, device_addr)
GGSV2.GAS.read_voc(i2c, device_addr)
GGSV2.GAS.read_co(i2c, device_addr)
GGSV2.GAS.read_all(i2c, device_addr)

using-genserver

 Using GenServer 

iex(1)> GGSV2.start_link([name: :ggsv2])
{:ok, #PID<0.1393.0>}
iex(2)> :timer.sleep(20_000)
:ok
iex(3)> GenServer.call(:ggsv2, :measure)
{:ok,
 %GGSV2.Measurement{no2_ppm: 330, c2h5ch_ppm: 380, voc_ppm: 147, co_ppm: 147}}