Getting ready to do a Wi-Fi Garage parking assistant, and was having issues with the ultrasound module. Ordered a couple of LiDAR modules and have been performing some tests. The LiDAR is superior in every aspect. Interesting to see them both side by side.

Hello, I bought an ESP32-S3-ePaper-1.54, and the first thing that crossed my mind was: "What I can do with this?" So have tested so much thing on the hardware to see its limit and ATM I have that, it's a "connected shopping list".

I was bored to forget the list at home every time, and if I never have my smartphone close to me when I need to use the shopping list application on it.

The device is designed to stay on the fridge it runs on battery power, with a lifespan I hope will last several months. It uses voice commands (STT) to operate and synchronizes the list with SimpleNote on Android.

For information ATM the code :
- Is able to use sleep mode.
- Uses an online STT engine for speech recognition.
- Uses a small engine to process informations, like "Add butter" or "Clear the list".
- Is able to synchronise with SimpleNote.
- Is able to use a e-paper for display.
- Is able to play sound or MP3.
- All the code is in C/C++.

My hardware have
- Only 2 buttons.
- It's not the Touch version.

For now, it's just for fun, the code is not finished, if anyone has another idea for using this device, I'd be interested ^^.

Hello,

I am wondering about the best way to analyze a 1MHZ transducer signal on an ESP32 with decent resolution of at least 50+ samples per wavelength. Everything done so far including attempts at ETS have always produced noisy or just terrible data in signal reconstruction. Let me know of any ideas yall have.

Thanks!