91–100 of 207 posts
Earlier quoted context omitted.
I do a lot of LED projects too but I just use ws2812s. What do you need the controller for? Large brightness perhaps? Just curious.
WLED is a system that runs on the ESP32 for some cool capabilities to drive the ws2812s, OP linked above.
This looks like the long-awaited replacement for the original ESP32. The S and C series have been relatively low performance (the S better than the C but stuck on the outgoing Xtensa architecture), the P4 is powerful but lacks wireless. This is a relatively high performance, dual core MCU with wireless; a nice default option for low volume designs where being able to copy a previous implementation is more important t…
Can it cope with TLS? The esp32 having a viable TLS stack has been a big win
I'm interested in audio out because I dabble in musical instruments. What's the state of Bluetooth audio out on microcontrollers? Is low latency and high quality output possible?
> I'm interested in audio out because I dabble in musical instruments. Sorry, I don't know. I'm just responding to echo and expand on another reply that Bluetooth for anything related to serious music, from audio playback to MIDI input is a dumpster fire on Windows. Several years ago I tried to set up a high-end Windows laptop for hobby DAW composition on the go. The real-world BT audio latency just from laptop to he…
I'm interested in audio out because I dabble in musical instruments. What's the state of Bluetooth audio out on microcontrollers? Is low latency and high quality output possible?
Low latency in Bluetooth audio comes down to codecs and the best are proprietary. If you want to really cut down latency and need wireless with hardware like this, you could use a second ESP32 and send your own bitstream between them.
> ESP32-S31 is particularly well suited for edge AI and machine learning workloads, including neural network inference Any way to know what kind of performance one could expect running e.g. a depth anything model on there?
Compute wise you can manage. You can do quantisation and run a small 10-15 layer CNN perhaps. Image classification is possible. Keep in mind the channel count and input resolution cannot be high since memory will be a problem. You can maybe do face _detection_, "is my cat on my keyboard" classification as well maybe.
Audio, you can do a lot more. Wake word detection happens on _much_ smaller accelerators inside iphones. In this one you can do slightly heavier classifications. Maybe speaker identification "which member of family" or maybe "which dog is barking"
https://github.com/eyalroz/printf/
I would like to make sure the library can be used on this SoC, and other RISC-V systems; which it probably can, but if there are any issues cross-compiling for it, or using the toolchain Espressif provides, please consider filing a bug report on GitHub at the link above. Same of course goes for any FOSS librar/tool that you're trying out.
Let's help foster a rich(er) ecosystem of software available on these babies!
When can we buy these?
[0] "ESP32-S31-Korvo-1 Development Board Espressif System AI Intelligent Multimedia Development Board Engineering Sample" for £54.79 from the (allegedly official) Espressif store at https://www.aliexpress.com/item/1005012333744553.html
This looks like the long-awaited replacement for the original ESP32. The S and C series have been relatively low performance (the S better than the C but stuck on the outgoing Xtensa architecture), the P4 is powerful but lacks wireless. This is a relatively high performance, dual core MCU with wireless; a nice default option for low volume designs where being able to copy a previous implementation is more important t…
Can it cope with TLS? The esp32 having a viable TLS stack has been a big win
Anyway, the S31 has SHA, AES, ECC, RSA, and ECDSA accelerators, so that should be fine. https://documentation.espressif.com/esp32-s31_datasheet_en.p...
Earlier quoted context omitted.
WLED is a system that runs on the ESP32 for some cool capabilities to drive the ws2812s, OP linked above.
Yes but these don't need controller hardware. The OP is using a dedicated controller and I was asking why.