Search found 21 matches

by themindfactory
Wed Dec 19, 2018 8:22 pm
Forum: ESP32 Arduino
Topic: Keeping AP alive when changing STA
Replies: 3
Views: 619

Re: Keeping AP alive when changing STA

This is similar to what I am seeing... I was thinking of doing a scan for SSID in the neighborhood and seeing if we are trying to connect to one of them and if not don't do it! I find however that the scan does not seem to break things, and that would have to seek around on channels.... (i think) Ri...
by themindfactory
Tue Dec 18, 2018 11:57 pm
Forum: ESP32 Arduino
Topic: Keeping AP alive when changing STA
Replies: 3
Views: 619

Re: Keeping AP alive when changing STA

I wrote an example sketch, attached below, to prove show issue. 1. Start CMD on windows machine and issue ping 192.168.4.1 -t 2. Change "your-ssid" and "your-password" to reflect your network.... then Run the sketch 3. find "myhost" in your wireless AP settings on the PC and log in.... (do it quickl...
by themindfactory
Mon Dec 17, 2018 4:45 am
Forum: ESP32 Arduino
Topic: Keeping AP alive when changing STA
Replies: 3
Views: 619

Keeping AP alive when changing STA

I want to log onto the ESP32 as an AP, and send it commands (over the AP interface) to change the attached STA, however when I do this it drops the AP I am connected to....

I am programming in the Arduino IDE.

How??

RichardS
by themindfactory
Mon Aug 13, 2018 9:22 pm
Forum: ESP32 Arduino
Topic: Please help, 2 different SPI libraries not getting along with one another....
Replies: 0
Views: 419

Please help, 2 different SPI libraries not getting along with one another....

I had to use 2 different SPI libraries because the SD class needs SPIClass and my WS2812 controller needed another so it could support the continuos sending of data with no breaks, it did this by ways of DMA, DMA was not required by me, but this is how it did it.... If I could make SPI Class send a ...
by themindfactory
Wed Jun 06, 2018 7:20 pm
Forum: ESP32 Arduino
Topic: SD card memory use
Replies: 12
Views: 2791

Re: SD card memory use

OK let me know, I could test for you guys also, I have a fairly large project right now running out of RAM! :-)

I need to get my hands on some WROVERS however, I should use the also the 16MBytes versions, Arduino supports the larger flash too?

RichardS
by themindfactory
Wed Jun 06, 2018 5:30 pm
Forum: ESP32 Arduino
Topic: SD card memory use
Replies: 12
Views: 2791

Re: SD card memory use

When might that be ??
by themindfactory
Wed Jun 06, 2018 1:49 pm
Forum: ESP32 Arduino
Topic: SD card memory use
Replies: 12
Views: 2791

Re: SD card memory use

And that seems to only be in the SD_MMC lib, I am using SD lib and accessing over SPI....

I have a large project and am out of memory, hence the issue....

Whats the status of WROVER and the extra PSRAM?? Has that been worked into Arduino IDE?

RichardS
by themindfactory
Wed Jun 06, 2018 12:06 pm
Forum: ESP32 Arduino
Topic: SD card memory use
Replies: 12
Views: 2791

Re: SD card memory use

By default, sd_card example in IDF uses 27K as you have mentioned. First of all, if you only need 1 file and not 5 files open at the same time, you can modify ".max_files = 5" to ".max_files = 1" in the example source code. Next, if you are not using wear_levelling library in your application, you ...
by themindfactory
Wed Jun 06, 2018 4:40 am
Forum: ESP32 Arduino
Topic: SD card memory use
Replies: 12
Views: 2791

SD card memory use

Is it possible to cut the 27K required for the SD card to function to a more reasonable level when all you need is one file open! :-)

I wrote a FAT32 driver years back that handled many files and used under 2K, a couple 512 byte buffers and some overhead....

Thanks!
RichardS
by themindfactory
Thu May 17, 2018 2:25 pm
Forum: ESP32 Arduino
Topic: Out of memory?? huh?
Replies: 2
Views: 1130

Re: Out of memory?? huh?

Thanks!

Is there a way to reclaim the 64k used for BT when BT is not used?

RichardS

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