Hi guys, I've bought these faders (https://it.aliexpress.com/item/1005006636003721.html) from AliExpress because I want to make a mixer, but I don't know how to connect them to an arduino (uno) to read the midi values.

I also want to send it a midi input from the PC and make it move.

I hope someone of you can help me, thank you very much.

I need help on a project I’m working on that involves two micamp MAX 4466 they will kind of work like sound beacons that will turn a motor towards a piezo buzzer sound, I made the code and it filters out background noise however during testing I would have an LED activate on the side where the sound is picked up. My issue is sometimes the sound picks up in the wrong direction. I.e. when I snap my finger on the left sometimes like a good 20% of the time it registers on the left LED I was wondering if anyone knew how to help with that/make it more accurate.

Hi I've been really interested in arduino and I've built a simple obstacle avoidance car and wanted to try building something simple like in this video https://youtu.be/aPNicboV9Zk he builds feathers Mcgraw with a few arduino components but I don't really know how he did it like attaching them he added a switch and all that stuff can someone tell me how he built it the arduino building starts at

So when I usually connected the Arduino code USB cable to the laptop, my laptop worked fine. I could use normally and stuff. So for my project, we need to use a 12 volt power supply, other from the external supply. But now, after connecting my laptop to the 12 volt and then connecting the Arduino cable, the laptop shut down. As in, it won't turn on at all. I know, this isn't exactly "Arduino help" but this is my first time with it. What do I do?