Support for ESP32-CAM - Githubissues

toitlang / toit

Program your microcontrollers in a fast and robust high-level language.

https://toitlang.org/

GNU Lesser General Public License v2.1

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Support for ESP32-CAM #218

Open floitsch opened 2 years ago

floitsch commented 2 years ago

Support the ESP32-CAM.

[ ] Taking pictures and constantly uploading them
[ ] Taking pictures and saving them locally in the microSD card, to be queried and downloaded remotely
[ ] Videos
[ ] Image processing (C bridge?)

dumblob commented 1 year ago

On a similar note, I am looking for support for two non-MEMS microphones (yep, I need the traditional analogue signal to be "ADCed") being mixed into one stereo-signal which I can then both in real-time transfer over network as well as save the very same stream to a flash memory.

Any plans to support such use-cases?

floitsch commented 1 year ago

@mikkeldamsgaard do you know what is already possible and what would need to happen for audio signals?

mikkeldamsgaard commented 1 year ago

@floitsch @dumblob The ESP32 has two ADC's that are supported by toit already and the flash is also supported. The issue will be to get a constant sample rate, as the ADC's are not currently supported in toit on the I2S.

The specification for the ADC's in the esp32 are not optimal for audio sampling anyway (12-bit and very bad SNR), so if you want good quality digital recordings, I would recommend adding a dedicated audio codec/adc to the system and interface that to the ESP32 via I2S.

dumblob commented 1 year ago

The specification for the ADC's in the esp32 are not optimal for audio sampling anyway (12-bit and very bad SNR)

Oh, thanks for the nudge! I would not have thought of this myself.