r/esp32projects

Hey, just wanted to share the small rust embedded project I made and that I use daily to monitor the status of a couple of services.

It also displays notifications from claude code, codex or any application capable of sending an http request.

It was my first time using rust with no-std, it's actually quite fun.

https://github.com/fkhadra/esp-notify

I’m obsessed with keeping my desk clean, minimal, and cable-free. But as someone who constantly works from home, games, and listens to music, my desk used to be a mess of fragmented hardware. So I plan to make a mini device that combines the following:

1. Audio Base: A high-resolution DAC/Amp that handles both headphone listening and active speaker output, with a dedicated toggle button so you don't have to unplug anything.
2. Built-in Mic Array: Instead of an invasive boom arm, an embedded microphone array in the base with beamforming noise cancellation.
3. Detachable Open-Source Controller: The top dial isn't just a static knob. It’s a magnetically detachable smart controller powered by an ESP32-S3/S31. When docked, it acts as a rotary volume/status screen and charges automatically. When detached, it becomes a wireless PC remote.

Last but not least, I'm planning to open-source the firmware, UI, and hardware schematics for the ESP32 controller so the community can build custom PC widgets, shortcuts, or AI tools.

I’d love to get your honest thoughts:

• Does an all-in-one hub like this fit into your current desk setup?
• If you could program the detachable ESP32 knob, what shortcuts or PC status monitors would you want to see on it?

Thanks for reading, and I’m eager to hear your feedback.

Hi! For a sequencer project, I need to connect these 12 push buttons to an ESP32, using a Ground-to-pin configuration (or at least that's what I'm thinking about). Now the problem is that the Esp32 devkitv1 doesn't have enough pins capable of reading pish buttons ins. I think I have two options here, and I'd like to know which one you think it's best and why:

Option 1: use a series of different resistors, an connect all the push buttons to one analog pins (3v -> push buttons sequence -> analog pin), given the different resistors values, I should read different currents on each button and therefore know what is being pressed. This seems kinda long to do, and I'm concerned that I wouldn't be able to read multiple buttons being pushed at the same time correctly

Option 2: connect the buttons, keeping the ground-to-pin configuration, to a MCP23017 I2C GPIO extension module, which should be able to handle all of them. I never used this module, but I have a couple from a box of scavenged electronics I found a year ago.

If you have another idea in mind let me know :)

Thank you all in advance

So I recently got this esp32 s3, upload, wifi stuff works but the inbuilt RGBneo pixel doesn't work idk y. I'm not a problem at this. I have tried many different sketches and also different pins. Still nothing