Brownout detector was triggered about esphome-yeelight-ceiling-light HOT 4 CLOSED

I changed my upload building back to the direct connection to the FTDI232 and there it's working. So the breakout board with the multiple cables was the reason.

from esphome-yeelight-ceiling-light.

If you google "Brownout detector was triggered" you will find out this is mostly an issue because of a unstable/broken/too small power supply. This cannot fixed by software. You could try to add a big capacitor.

from esphome-yeelight-ceiling-light.

i changed the power supply to 18650 with a MCP1700-3302E, so 250mA are still less ? Where should i add a capacitor ? Between 3.3V and GND ? https://www.tobias-schwarz.com/en/posts/11/stable-esp32-with-capacitors_hu18e386f1e441344927647a3f1496b083_1253501_720x0_resize_q80_lanczos.jpg

from esphome-yeelight-ceiling-light.

Take a look at this issue: espressif/arduino-esp32#863

May be you can extract some useful tips. I would play around with different solutions because it's hard to predict the root cause.

The job of the capacitor is "being a tiny battery to buffer spikes" and must be connected between VCC and GND. The photo looks good to me.

from esphome-yeelight-ceiling-light.