Add support for TLC5947 24-Channel PWM driver. #551
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Makuna
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Jan 8, 2022
Makuna
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Jan 15, 2022
AMoo-Miki
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Aug 15, 2022
* Add support for TLC5947 24-Channel PWM driver. * Refactor code to match coding guidelines and better documentation.
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This commit adds support for the TLC5947 24-Channel PWM driver used on the Adafruit 24-Channel 12-bit PWM breakout board.
This driver needs 2 SPI data pins and an additional "latch" pin to apply the color values. An optional "output enable" pin can be used to prevent flickering during color updates.
To match the internal 12-bit PWM depth, scaling of the regular RGB/RGBA 8-bit and 16-bit color features is performed,
This commit also adds two additional SPI speed modes (15Mhz/30Mhz) to match the maximal values defined in the data sheet.
This driver has been tested on Arduino, ESP8266 and ESP32 in Bit-banging and hardware SPI modes against the Adafruit driver implementation.