Search found 112 matches

by wevets
Sat Dec 05, 2020 5:08 am
Forum: ESP-IDF
Topic: Comparison of FreeRTOS vs. NuttX under esp idf
Replies: 4
Views: 404

Re: Comparison of FreeRTOS vs. NuttX under esp idf

OK. So no articles of which you are aware that compare the two OS's. I'm pretty happy with FreeRTOS, but seeing an article on NuttX from an Expressif software engineer made me wonder about it.

Thanks for the reply.
by wevets
Thu Dec 03, 2020 6:10 am
Forum: ESP-IDF
Topic: Comparison of FreeRTOS vs. NuttX under esp idf
Replies: 4
Views: 404

Re: Comparison of FreeRTOS vs. NuttX under esp idf

You might want to take a look at the article that got me wondering. It's at https://medium.com/the-esp-journal/getting-started-with-esp32-and-nuttx-fd3e1a3d182c It purports to be by an Espressif embedded software engineer, Sara Monteiro. And the article seems to make use of the esp-idf quite a bit. ...
by wevets
Wed Dec 02, 2020 5:56 pm
Forum: ESP-IDF
Topic: I DON'T WANT ANY LOG TO THE CONSOLE
Replies: 4
Views: 475

Re: I DON'T WANT ANY LOG TO THE CONSOLE

I have also found that strapping GPIO 15 to ground suppresses additional log output from the bootloader. I do this as well as the adjust the setting in menuconfig in the previous reply to suppress all terminal log output.
by wevets
Wed Dec 02, 2020 5:49 pm
Forum: ESP-IDF
Topic: Comparison of FreeRTOS vs. NuttX under esp idf
Replies: 4
Views: 404

Comparison of FreeRTOS vs. NuttX under esp idf

I recently saw an article on getting started with NuttX on the ESP32 by Sara Monteiro, an embedded software engineer at Espressif. At this point I'm pretty committed to FreeRTOS for my current project, but I'm intrigued. Is there an article that compares FreeRTOS with NuttX to which you can point me...
by wevets
Mon Sep 28, 2020 9:22 pm
Forum: Hardware
Topic: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library
Replies: 6
Views: 931

Re: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library

It looks like desyner listed the answer to your question right above the schematic. It's an HT7833 LDO. It's spec'ed to handle 500mA.
by wevets
Mon Sep 28, 2020 5:06 pm
Forum: ESP-IDF
Topic: Lowest of low power
Replies: 2
Views: 407

Re: Lowest of low power [Solved]

Thanks for this. I'll implement it.
by wevets
Mon Sep 28, 2020 6:02 am
Forum: ESP-IDF
Topic: Lowest of low power
Replies: 2
Views: 407

Lowest of low power

I'm creating an app that will run under battery power and will be running the ULP in deep sleep most of the time, waking up periodically to report changes in sensor status via HTTP. If no changes in sensor status occur over long periods, a heartbeat report is sent to the back end occasionally to let...
by wevets
Sun Sep 27, 2020 3:25 pm
Forum: ESP-IDF
Topic: ESP-IDF V4.x with extra argements for idf.py to pass down?
Replies: 7
Views: 1061

Re: How do you enable -j option for ESP-IDF V4.x with cmake?

I'm running a Win10 machine and use cmd.exe as my build environment. I'm at IDF v4.1. When I run idf.py to build my app, I use Task Manager to look at the individual utilization of the four cores in my processor, and they're all pinned at 99% utilization. So it looks like idf.py sets up cmake and ni...
by wevets
Sat Sep 26, 2020 5:46 pm
Forum: ESP-IDF
Topic: Banging my head against the wall
Replies: 4
Views: 902

Re: Banging my head against the wall

Yes, the first line of my .csv file was "key,type,encoding,value", at least as viewed in my text editor and in excel. But you gave me a clue, so I looked at the file in a hex editor, and somewhere along the line, probably in excel where I initially created the file, a couple of non-printing characte...
by wevets
Fri Sep 25, 2020 6:39 am
Forum: ESP-IDF
Topic: Banging my head against the wall
Replies: 4
Views: 902

Banging my head against the wall

I am trying to set up a factory NVS partition that will hold data that will not be erased across reset to factory. This is covered in https://docs.espressif.com/projects/esp-jumpstart/en/latest/manufacturing.html and several other sites. The process is to convert a .csv file with the persistent data...

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