Search found 244 matches

by Deouss
Tue Aug 14, 2018 7:40 pm
Forum: General Discussion
Topic: Use of cloud functions ... who are you using and what do you need?
Replies: 6
Views: 89

Re: Use of cloud functions ... who are you using and what do you need?

Howdy Deouss and many thanks for taking the time to respond. If I may ask, what are the qualities you are liking of Azure relative to the other players? Is it just price? Are you connecting your ESP32 to an Azure cloud? What protocol does Azure use (MQTT?)? What are you doing with the data when it ...
by Deouss
Tue Aug 14, 2018 3:33 pm
Forum: General Discussion
Topic: Range Extension of the Pulse Counter (PCNT)
Replies: 3
Views: 203

Re: Range Extension of the Pulse Counter (PCNT)

I had that problem with counter value. You don't have to extend range of PCNT.
All you have to do is detect if it is decrement or increment and store value in memory variable.
Check for delta change and add it to your global value - that's it.
by Deouss
Tue Aug 14, 2018 12:07 pm
Forum: ESP32 IDF
Topic: WIFI/BLE Simultaneously
Replies: 12
Views: 203

Re: WIFI/BLE Simultaneously

I found this ESP32 Bluetooth Architecture document describing in details the Bluetooth system on Esp32. They mention limits of using only one interface by HCI. I couldn't find more technical info on WiFi and it is interesting how both stacks are 'switched' to operate. In theory two cores should do t...
by Deouss
Tue Aug 14, 2018 4:06 am
Forum: ESP32 IDF
Topic: WIFI/BLE Simultaneously
Replies: 12
Views: 203

Re: WIFI/BLE Simultaneously

The problem is that they share a radio; in other words, while the ESP32 is sending/receiving a BT packet, it cannot listen or send a WiFi packet. It's like trying to keep up with talkshows on an old FM radio: you're switching back and forth a lot, and you can usually keep up with both because of so...
by Deouss
Mon Aug 13, 2018 8:41 pm
Forum: ESP32 IDF
Topic: WIFI/BLE Simultaneously
Replies: 12
Views: 203

Re: WIFI/BLE Simultaneously

I don't understand what seems to be the problem with both being used at the same time. First of all I came across some people complaining about esp and surprisingly discover they use Arduino only for very sophisticated apps normally written in AVR environment. I myself encountered problems with diff...
by Deouss
Sat Aug 11, 2018 5:47 pm
Forum: ESP32 Arduino
Topic: Unable to use all ram available?
Replies: 7
Views: 160

Re: Unable to use all ram available?

Yes - I was just testing memory allocation. 16bit is 320*240*2=153.6kb. I was using buffer for extra images
By the way I am interested in jpeg decompressor that can unpack image into one single ram chunk.
There is idf example but the function returns an array of chunks.
by Deouss
Sat Aug 11, 2018 5:22 pm
Forum: ESP32 Arduino
Topic: Unable to use all ram available?
Replies: 7
Views: 160

Re: Unable to use all ram available?

Maybe use WROVER Esp with 4mb psram. I was able to allocate full chunk of 4MB with PSRAM flag for heap malloc.
That memory was used for same ILI9341 display but 16bit colors.
by Deouss
Sat Aug 11, 2018 1:41 am
Forum: General Discussion
Topic: Run linux on the ESP32?
Replies: 8
Views: 266

Re: Run linux on the ESP32?

I must admit I also don't understand quite well how exactly memory management looks like. What I found out is that it is all done by special memory mapping tables that assign certain context of the process to addressees. I don't understand why PSRAM space cannot be executed by CPU - is it because MP...

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