3fcdaaefe0
* fix: FastLED SPI_DATA_RATE being truncated to 8 bits
FastLED expects SPI_DATA_RATE as an uint32_t, but we had it as uint8_t.
Fix that to avoid the data rate being truncated.
* fastled: allow specifying data rate
Previously, we've just taken the default data rate from FastLED.
However, that does not always work properly. In my case, I had a
slow level shifter that couldn't keep up with the 1 MHz data
rate default for WS2801. Long cabling might also be a reason why
one might want to reduce the data rate.
This will add a new optional "data_rate" config option where one
may specify the desired data rate as a frequency:
light:
- platform: fastled_spi
chipset: WS2801
data_pin: GPIO23
clock_pin: GPIO22
data_rate: 500kHz
num_leds: 178
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