esphome_fan_controller
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Using other pin for fan supply?
Based on the below link, https://rabbithole.wwwdotorg.org/2017/03/28/esp8266-gpio.html
D5 is high, then low after ~110ms as you noticed. But D1, and D2 are low on boot/flash.
If we use D1 or D2 instead of D5, we could not need a workaround that outputs PWM 100% for the turn-off.
I didn't test yet. Just an idea. What do you think?
Thank you. It makes sense. I'll test this later.