Search found 5 matches

by wwilcz
Wed Aug 04, 2021 4:20 pm
Forum: Hardware
Topic: I'm getting constant brownouts powering ESP32-CAM
Replies: 6
Views: 5076

Re: I'm getting constant brownouts powering ESP32-CAM

I replaced the diode with a 470uF polarized capacitor (biggest I could find). No effect on the current (or anything else) whatsoever.

Is it possible that the boost converter is simply broken?
by wwilcz
Wed Aug 04, 2021 7:54 am
Forum: Hardware
Topic: I'm getting constant brownouts powering ESP32-CAM
Replies: 6
Views: 5076

Re: I'm getting constant brownouts powering ESP32-CAM

Hah, if it were so simple... ;) The brownouts occur regardless of whether I crank up the converter to 6V or remove the diode completely. There isn't even a change in the current with or without the diode - always oscillates between 120-150mA.
by wwilcz
Wed Aug 04, 2021 5:05 am
Forum: Hardware
Topic: I'm getting constant brownouts powering ESP32-CAM
Replies: 6
Views: 5076

Re: I'm getting constant brownouts powering ESP32-CAM

1N4007. There was no reasoning behind choosing this one. I just had those diodes lying around.
by wwilcz
Tue Aug 03, 2021 9:27 pm
Forum: Hardware
Topic: 7.4v battery charger
Replies: 0
Views: 1592

7.4v battery charger

Does anyone know if there is a module like tp4056 but with a 7.4v output? Something that can charge double battery packs?
by wwilcz
Tue Aug 03, 2021 5:20 pm
Forum: Hardware
Topic: I'm getting constant brownouts powering ESP32-CAM
Replies: 6
Views: 5076

I'm getting constant brownouts powering ESP32-CAM

Hi, I want to create a solar charged camera, but got stuck half-way. I'm getting a brownout the minute I power WiFi on the ESP32-Cam with the setup from the picture. The voltages are all ok - 4.1V on the battery, ~3.8V coming out of TP4056, solid 5V out of the boost converter. The current however is...