Search found 46 matches

by bobolink
Thu Jan 14, 2021 1:20 pm
Forum: General Discussion
Topic: Building on Mac OS Big Sur
Replies: 2
Views: 161

Re: Building on Mac OS Big Sur

OSX Catalina was the last version I got to work.
Big Sur is locked down to the point of being pretty useless for our tool chains/apps.
I Dual boot.
by bobolink
Sat Jan 09, 2021 9:02 pm
Forum: ESP32 Arduino
Topic: Reducing memory usage when using BLE
Replies: 4
Views: 291

Re: Reducing memory usage when using BLE

Ooooops.
Some Callback processing causes a crash.
Stack size somewhere in Arduino version needs increasing I guess.
The troubleshooting costs might exceed the benefits.
:shock:
by bobolink
Sat Jan 09, 2021 5:01 pm
Forum: ESP32 Arduino
Topic: Reducing memory usage when using BLE
Replies: 4
Views: 291

Re: Reducing memory usage when using BLE

Thanks. I completely missed NimBLE. I saved about 6% program memory. Using BlueDroid Sketch uses 1095047 bytes (16%) of program storage space. Maximum is 6553600 bytes. NimBLE Sketch uses 656243 bytes (10%) of program storage space. Maximum is 6553600 bytes. Notes: If you are using the Arduino re-fa...
by bobolink
Fri Jan 01, 2021 12:13 pm
Forum: General Discussion
Topic: ESP32S2
Replies: 5
Views: 493

Re: ESP32S2

A google search turned up this 90+ projects summary.
I haven’t verified everything but I think they have a good reputation.
https://randomnerdtutorials.com/projects-esp32/
by bobolink
Sat Oct 31, 2020 10:53 am
Forum: Showcase
Topic: ESP32-S2 ESP32-S3 engineering usb dongle "esp32-sx-stickley"
Replies: 1
Views: 23366

Re: ESP32-S2 ESP32-S3 engineering usb dongle "esp32-sx-stickley"

but also there is the same usb engineering sample to the maker market with an ESP32-S3, which support Wifi and Bluetooth and is based on the ESP32-S3-Mini serie's.
Can’t wait for any news on S3—mini or maxi
;)
by bobolink
Sat Aug 22, 2020 11:21 am
Forum: ESP32 Arduino
Topic: Best Frequency Meter ever made with ESP32 - awesome!
Replies: 11
Views: 3047

Re: Best Frequency Meter ever made with ESP32 - awesome!

Thank you for all your work on this.
by bobolink
Thu Jul 23, 2020 11:15 am
Forum: General Discussion
Topic: Speed of Switching between Wifi and Bluetooth
Replies: 3
Views: 1114

Re: Speed of Switching between Wifi and Bluetooth

I’m just trying that now. I’ve completed the secure BLE side and now adding a simple tcp/ip connection to a non-secure server. But I will try the Arduino IDE first before ESP-IDF since that will appeal to more hobbyist-type people. Which is the audience. If the ESP32 can pull this off, It will be am...
by bobolink
Tue Jun 23, 2020 11:55 am
Forum: Hardware
Topic: Memory Layout BUG Overlap on BOOT
Replies: 8
Views: 2279

Re: Memory Layout BUG Overlap on BOOT

And the takeaway from this exchange is that there is such a thing as the “ESP Journal”
:o
https://medium.com/the-esp-journal
by bobolink
Wed May 20, 2020 11:31 am
Forum: Hardware
Topic: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
Replies: 17
Views: 5850

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

I’m interested in this topic as well.

Dana,
Does the AI-Thinker board have these parts?

Bob
by bobolink
Mon Feb 17, 2020 12:18 pm
Forum: ESP32 Arduino
Topic: SAMPLING AUDIO - How to handle large data?
Replies: 6
Views: 2933

Re: SAMPLING AUDIO - How to handle large data?

For 60 sec. of 16 bit samples 4MB of PSRAM, as suggested above, would work but it has a slow write cycle. I don’t know if it would complete before the next interrupt.

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