adafruit_is31fl3731

CircuitPython driver for the IS31FL3731 charlieplex IC.

  • Author(s): Tony DiCola

Implementation Notes

Hardware:

Software and Dependencies:

class adafruit_is31fl3731.CharlieWing(i2c, address=116)[source]

Supports the Charlieplexed feather wing

static pixel_addr(x, y)[source]

Calulate the offset into the device array for x,y pixel

class adafruit_is31fl3731.Matrix(i2c, address=116)[source]

The Matrix class support the main function for driving the 16x9 matrix Display

Parameters:
  • i2c_device (i2c_device) – the connected i2c bus i2c_device
  • address – the device address; defaults to 0x74
audio_play(sample_rate, audio_gain=0, agc_enable=False, agc_fast=False)[source]

Controls the audio play feature

audio_sync(value=None)[source]

Set the audio sync feature register

autoplay(delay=0, loops=0, frames=0)[source]

Start autoplay

Parameters:
  • delay – in ms
  • loops – number of loops - 0->7
  • frames – number of frames: 0->7

Updates the blink register

fade(fade_in=None, fade_out=None, pause=0)[source]

Start and stop the fade feature. If both fade_in and fade_out are None (the default), the breath feature is used for fading. if fade_in is None, then fade_in = fade_out. If fade_out is None, then fade_out = fade_in

Parameters:
  • fade_in – positive number; 0->100
  • fade-out – positive number; 0->100
  • pause – breath register 2 pause value
fill(color=None, blink=None, frame=None)[source]

Fill the display with a brightness level

Parameters:
  • color – brightness 0->255
  • blink – True if blinking is required
  • frame – which frame to fill 0->7
frame(frame=None, show=True)[source]

Set the current frame

Parameters:
  • frame – frame number; 0-7 or None. If None function returns current frame
  • show – True to show the frame; False to not show.
pixel(x, y, color=None, blink=None, frame=None)[source]

Blink or brightness for x-, y-pixel

Parameters:
  • x – horizontal pixel position
  • y – vertical pixel position
  • color – brightness value 0->255
  • blink – True to blink
  • frame – the frame to set the pixel
static pixel_addr(x, y)[source]

Calulate the offset into the device array for x,y pixel

reset()[source]

Kill the display for 10MS

sleep(value)[source]

Set the Software Shutdown Register bit

Parameters:value – True to set software shutdown bit; False unset