elixir_max72xx v0.1.2 ElixirMax72xx.Matrix
Summary
Functions
Clear matrix
Will clear given row
Set decode-mode for matrix
Set intensity for matrix
Sets matrix values
Sets row lights
Set scanlimit for device
Shutdown matrix
Start the ElixirMax72xx GenServer to manage LED matrix
Get current state
Enable/disable matrix test feature
Types
Functions
Will clear given row
Rows could be integers from 1 to 8 Example:
iex> ElixirMax72xx.clear_row(1)
:ok
iex> ElixirMax72xx.clear_row(7)
:ok
iex> ElixirMax72xx.clear_row(0)
** (FunctionClauseError) no function clause matching in ElixirMax72xx.clear_row/1Set decode-mode for matrix
Example:
iex> ElixirMax72xx.set_decodemod(0x0F)
:okSet intensity for matrix
Example:
iex> ElixirMax72xx.set_intensity(0x0F)
:okSets matrix values
Example:
iex(1)> matrix_value = [
...(1)> 0b00000000,
...(1)> 0b00000000,
...(1)> 0b00000000,
...(1)> 0b00010000,
...(1)> 0b00000000,
...(1)> 0b00000000,
...(1)> 0b00000000,
...(1)> 0b00000000
...(1)> ]
[0, 0, 0, 0, 0, 0, 0, 0]
iex(2)> ElixirMax72xx.set_matrix(matrix_value)
:okSets row lights
Parameters:
row- row number 1..8value- value of row lights0b00110011
Example:
iex> ElixirMax72xx.set_row(1, 0b00001100)
:okSet scanlimit for device
Example:
iex> ElixirMax72xx.set_scanlimit(7)
:okShutdown matrix.
Example:
iex> ElixirMax72xx.shutdown(true)
:ok
iex> ElixirMax72xx.shutdown(false)Start the ElixirMax72xx GenServer to manage LED matrix
Parameters:
devnameis the Linux device name for the bus (e.g., “spidev0.0”)optsis a keyword list to configure the module
Get current state
Example
iex(1)> ElixirMax72xx.Matrix.state()
%ElixirMax72xx.Matrix.MatrixState{devname: "spidev0.0",
leds: [0, 0, 0, 0, 0, 0, 0, 0], pid: #PID<0.793.0>}