The pulse timings for the ws2816 LEDs are off and might cause a bright flicker of the first LED.
The datasheet of the ws2816 specifies
T0H0 code, high voltage time: 200ns-320ns
T1H1 code, high voltage time: 520ns-800ns
T0L0 code, low voltage time: 800ns-1.2µs
T1L1 code, low voltage time: 480ns-1µs
while the code for the NeoEsp32Rmt0Ws2816Method specifies NeoEsp32RmtSpeedWs2812x, which uses 400ns for T0H0 and 800ns for T1H1.
Since I no longer use github for hosting I cloned the repository at codeberg, created a commit adding a NeoEsp32RmtSpeedWs2816x and using it for the ws2816 RMT methods.
A similiar change might be needed for other peripherals, I did not do it since I don't have a means to check what I changed.
The change at https://codeberg.org/nomis/NeoPixelBus has been verified against different variants of the ws2816.
The pulse timings for the ws2816 LEDs are off and might cause a bright flicker of the first LED.
The datasheet of the ws2816 specifies
T0H0 code, high voltage time: 200ns-320ns
T1H1 code, high voltage time: 520ns-800ns
T0L0 code, low voltage time: 800ns-1.2µs
T1L1 code, low voltage time: 480ns-1µs
while the code for the NeoEsp32Rmt0Ws2816Method specifies NeoEsp32RmtSpeedWs2812x, which uses 400ns for T0H0 and 800ns for T1H1.
Since I no longer use github for hosting I cloned the repository at codeberg, created a commit adding a NeoEsp32RmtSpeedWs2816x and using it for the ws2816 RMT methods.
A similiar change might be needed for other peripherals, I did not do it since I don't have a means to check what I changed.
The change at https://codeberg.org/nomis/NeoPixelBus has been verified against different variants of the ws2816.