Brownout detector bootloop (Heltec Wifi Kit 32 board) #7446
Replies: 1 comment
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Posted at 2021-08-15 by Robin Google: Brownout detector was triggered site:espruino.com Posted at 2021-08-16 by misaalanshori I know about those posts, but did you read my post? I have not had any power problem with this board running Micropython and regular Arduino code with the OLED Screen fully on and while connected to a WiFi Access Point. Meanwhile, with Espruino, I flash the firmware, without any of my code running, no displays, no wireless connections, it triggers the brownout detector. Is Espruino really that power-hungry? Just running the Espruino console requires more power than running a bunch of Micropython code, a display, and wifi at the same time? Posted at 2021-08-16 by @MaBecker I guess this is because Espruino for ESP32 checks and activates WiFi during boot. Posted at 2021-08-16 by @MaBecker Default ap and station is active - afaik. Posted at 2021-08-16 by @MaBecker Some dev boards us a too small ldo. Posted at 2021-08-16 by misaalanshori Is it possible to disable wifi at boot? And what does espruino do differently that causes wifi to use so much power that it triggers the brownout detector? As I said before, I have used this same setup before with Arduino and Micropython and never had problems with power, even with a high load as I mentioned in my previous reply. Posted at 2021-08-16 by @MaBecker Part 1 Part 2 Part 3 |
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Posted at 2021-08-15 by misaalanshori
I'm trying to use Espruino on the ESP32 Heltec WiFI Kit 32 Board. But after flashing the board, the board keeps restarting, saying brownout detector was triggered.
Usually when I plug the board in the console would show up and work, but after a few seconds, the brownout detector would get triggered and start boot looping.
Here is a snippet of the serial console output:
The thing is I never had this problem before. Previously, I was using Micropython and was able to run the OLED display and connect to a wifi network simultaneously with no power problems. What could be causing this?
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