Add native support for Pimoroni Scroll pHAT HD (IS31FL3731) - #302
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Add native support for Pimoroni Scroll pHAT HD (IS31FL3731)#302Trotter73 wants to merge 1 commit into
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Adds a new scrollphathd device class, driven natively over I2C by directly talking to the IS31FL3731 LED matrix controller's register map - not a wrapper around Pimoroni's own scrollphathd library. - Register constants live in const.py (new is31fl3731 class), and the protocol/rendering logic lives directly on the scrollphathd device class in device.py, consistent with how max7219/ws2812/apa102 are structured elsewhere in this module. - 17x7 grid of individually PWM-dimmable white LEDs (256 brightness levels), addressed via a 32-bit RGBA image, consistent with the apa102/unicornhathd convention of using the alpha channel to set per-pixel brightness. - Physical LED addressing (visible x,y -> 144-pixel chip buffer index, and the enable/wiring bitmap) is derived algorithmically rather than hardcoded, and cross-checked against the known-good Pimoroni mapping. - Adds tests/test_scrollphathd.py, examples/scrollphathd_demo.py, and documentation updates (README, intro, python-usage, CHANGES).
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Adds a new scrollphathd device class, driven natively over I2C by directly talking to the IS31FL3731 LED matrix controller's register map - not a wrapper around Pimoroni's own scrollphathd library.
fixes #100