Search found 30 matches
- Wed Feb 17, 2021 2:49 am
- Forum: Hardware
- Topic: Using segmentation fault to bridge different memory segments?
- Replies: 2
- Views: 2946
Using segmentation fault to bridge different memory segments?
I need an array of 224KB but you can only get around 160KB contiguous memory on ESP32. If I could split the array in 2 regions, then I can get the 224KB I need, but I have lots of code (including external libraries I don't control) that expect that memory block to be an array that must be contiguous...
- Wed Feb 17, 2021 2:40 am
- Forum: Hardware
- Topic: LOLIN D32 Pro V2.0.0 power/battery red LED keeps flashing quickly
- Replies: 3
- Views: 5570
Re: LOLIN D32 Pro V2.0.0 power/battery red LED keeps flashing quickly
to close the loop, it's a change from the manufacturer, I think i'ts an unfortunate change, but it is what it is.
- Sat Jan 16, 2021 9:34 pm
- Forum: Hardware
- Topic: LOLIN D32 Pro V2.0.0 power/battery red LED keeps flashing quickly
- Replies: 3
- Views: 5570
Re: LOLIN D32 Pro V2.0.0 power/battery red LED keeps flashing quickly
The led is connected to TP4054 CHRG pin. With no battery connected, maybe it is doing the "charge complete / AC present" indicator of 20uA pull down. Are you seeing a bright flash or very dim? Also there is another led on IO5, could that be the one you're seeing? Thanks for the reply. I'm seeing a ...
- Sat Jan 16, 2021 2:47 am
- Forum: Hardware
- Topic: LOLIN D32 Pro V2.0.0 power/battery red LED keeps flashing quickly
- Replies: 3
- Views: 5570
LOLIN D32 Pro V2.0.0 power/battery red LED keeps flashing quickly
I have some older versions of this board: https://www.amazon.com/gp/product/B07QDFP3W they work fine. I bought some new ones, from 2 sources, and the red power LED keeps flashing at high speed when powered through USB. I think it's probably complaining about the lipo plugged into the port, except th...
- Sun Dec 01, 2019 4:37 am
- Forum: ESP32 Arduino
- Topic: why does malloc not give memory that is available?
- Replies: 2
- Views: 3442
Re: why does malloc not give memory that is available?
Turns out I had to print 8bit memory, I forgot about that. Heap/32-bit Memory Available: 139756 bytes total, 82808 bytes largest free block 8-bit/DMA Memory Available : 56804 bytes total, 43520 bytes largest free block Malloc LEDMatrix Failed. Bytes requested: 49152 So, this explains that. Sad that ...
- Sun Dec 01, 2019 1:12 am
- Forum: ESP32 Arduino
- Topic: why does malloc not give memory that is available?
- Replies: 2
- Views: 3442
why does malloc not give memory that is available?
printf("Heap/32-bit Memory Available: %6d bytes total, %6d bytes largest free block\n", heap_caps_get_free_size(0), heap_caps_get_largest_free_block(0)); uint32_t mallocsize = m_absMWidth * m_absBWidth * m_absMHeight * m_absBHeight * sizeof(CRGB); p_LED = (struct CRGB *) malloc(mallocsize); if (! p...
- Tue Apr 16, 2019 3:13 pm
- Forum: ESP32 Arduino
- Topic: Announce: SmartMatrix::GFX for RGB Panels and running FastLED/NeoMatrix code on top of RGBPanels
- Replies: 1
- Views: 3907
Re: Announce: SmartMatrix::GFX for RGB Panels and running FastLED/NeoMatrix code on top of RGBPanels
Here is the shirt I was able to build with it: http://marc.merlins.org/perso/arduino/post_2019-04-08_Clubbing_-EDM-Festival-and-Burning-Man-LED-Pants-and-Shirt-v4-on-ESP32-with-RGBPanels-and-SmartMatrix_GFX.html http://marc.merlins.org/blogimg/thumb1024_520_20190408_LED_Pants_and_Shirt_v4_on_ESP32_w...
- Thu Apr 11, 2019 5:04 am
- Forum: ESP32 Arduino
- Topic: what is the difference between compiling for esp32dev vs nodemcu-32S?
- Replies: 4
- Views: 7061
Re: what is the difference between compiling for esp32dev vs nodemcu-32S?
Thanks for confirming, it seems that esp32dev is the best option then, especially now that I added a bunch of partitioning mappings in master, including ffat partitioning options I use
- Wed Apr 10, 2019 5:23 pm
- Forum: ESP32 Arduino
- Topic: Announce: SmartMatrix::GFX for RGB Panels and running FastLED/NeoMatrix code on top of RGBPanels
- Replies: 1
- Views: 3907
Announce: SmartMatrix::GFX for RGB Panels and running FastLED/NeoMatrix code on top of RGBPanels
I spent quite a bit of time hacking on my new party shirt (since last year), which is now based on higher density RGB Panels, which however are totally different technology compared to my previous NeoMatrix shirt. I ended up writing SmartMatrix::GFX, a glue driver to allow all my previous code to wo...
- Wed Apr 10, 2019 5:17 pm
- Forum: ESP32 Arduino
- Topic: Has anyone made an RMT IR Receive library for ESP32/arduino?
- Replies: 6
- Views: 9970
Re: Has anyone made an RMT IR Receive library for ESP32/arduino?
I was pointed to https://github.com/lbernstone/IR32 and was able to use it.
It has some small unreliabilities I'm still working with, but overall it works.
It has some small unreliabilities I'm still working with, but overall it works.