# SPDX-FileCopyrightText: Tony DiCola 2017 for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""
`adafruit_is31fl3731.charlie_bonnet`
====================================================
CircuitPython driver for the IS31FL3731 charlieplex IC.
* Author(s): Tony DiCola, Melissa LeBlanc-Williams
Implementation Notes
--------------------
**Hardware:**
* `Adafruit 16x8 CharliePlex LED Matrix Bonnets
<https://www.adafruit.com/product/4127>`_
**Software and Dependencies:**
* Adafruit CircuitPython firmware for the supported boards:
https://github.com/adafruit/circuitpython/releases
"""
# imports
from . import IS31FL3731
[docs]
class CharlieBonnet(IS31FL3731):
"""Supports the Charlieplexed bonnet"""
width = 16
height = 8
[docs]
@staticmethod
def pixel_addr(x, y):
"""Calulate the offset into the device array for x,y pixel"""
if x >= 8:
return (x - 6) * 16 - (y + 1)
return (x + 1) * 16 + (7 - y)