Search found 108 matches

by wevets
Mon Sep 28, 2020 9:22 pm
Forum: Hardware
Topic: Custom PCB + Wroom 32 crashes using Arduino-ESP32 Wifi Library
Replies: 4
Views: 312

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: 204

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: 204

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: 651

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: 568

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: 568

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...
by wevets
Sun Sep 20, 2020 5:35 am
Forum: ESP-IDF
Topic: Can a ESP32 DevKitC tell it's power source?
Replies: 1
Views: 185

Can a ESP32 DevKitC tell it's power source?

HI,

Can an ESP IDF software app running on a DevKitC know if it is running from 5v from a connected USB source or from a 3.8~2.8v source from a battery to the 3.3v pin?

Thanks.
by wevets
Sat Aug 22, 2020 8:51 pm
Forum: ESP-IDF
Topic: nvs_close count
Replies: 0
Views: 179

nvs_close count

I have noticed that the system keeps a count of the times the NVS has been closed, with a typical information message reading: D (331196) nvs: nvs_close 40 I see this ascending count after the NVS is accessed for some non-volatile information where my app currently opens and closes the NVS. What doe...
by wevets
Sat Aug 15, 2020 10:22 pm
Forum: ESP-IDF
Topic: Looking for a clean HTTP POST example
Replies: 2
Views: 278

Re: Looking for a clean HTTP POST example

Thanks for the quick reply. The reason I started looking at the sample HTTP client is that I had an implementation based on this client working in my app until.... it crashed with a stack overflow after several HTTP POSTs. I wasn't monitoring stack penetration at that point, I only saw the stack ove...
by wevets
Sat Aug 15, 2020 8:43 pm
Forum: ESP-IDF
Topic: Looking for a clean HTTP POST example
Replies: 2
Views: 278

Looking for a clean HTTP POST example

I am building an app that needs to do simple HTTP POSTs to a server in the cloud. I have looked at esp-idf http client example and it runs just fine. Then I instrumented it to look only at POSTs and to check the stack, modifying the task code as shown: static void http_test_task(void *pvParameters) ...

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