By
@yaasshh
Reads raw muscle electrical signals (EMG) from a forearm electrode cuff, processes them through a 4-stage analog signal chain, classifies the gesture using a random forest running on the ESP itself.
@yaasshh
on
EMG Signal Recorder
3h 46m logged
It’s a wonderful day. I feel like I am completely finished with this project—or at least finished to some extent—because I still need to get the PCB, solder everything, and test it properly. However, I’ve done as much as I can to the best of my abilities for now.
I am definitely proud of the work that led me here. It has been close to 50 hours of work over a month. It was a long month with a lot of school and personal things going on, but I powered through it. I made a lot of mistakes and had to redo the entire thing twice, which led me to a breaking point at one stage, but I pushed through and I’m proud of that.
I have checked everything and gone through all the materials. Regarding the next steps:
PCB Manufacturing
After the discount, this will be around $20–$30. I am hoping to get funding for that.
Individual Parts
The rest of the money will be for the components. I’ll get those from AliExpress or somewhere similar where I can buy in bulk for very cheap. I’m not opting for Digi-Key because I was having a lot of trouble going through their system. On AliExpress, I can get most of what I need for around 60–80 AED (approximately $25). Buying in bulk means I can keep extra parts for other projects, which will reduce the funding I need later on.
All the PCB files, schematics, and Gerber files have been pushed to GitHub. I’m hoping to get the funding as soon as possible so I can start working on this ASAP.
I am really looking forward to the next project, which should include the sensor itself. The faster this gets done, the sooner I can start working on that next project much more efficiently.
P.S. Basically, I have put close to or above 50 hours of work into this project over a month of work, averaging almost two hours every day.
I’m proud of this, and for those who don’t believe me, everything is documented on Macondo (the Hack Club challenge). You are free to view the journals over there. However, I will also be adding a journal.md to my GitHub in a bit.
Not right now, though, as I am severely burned out from this project. I need to start a new project and put my mind to something else for a while. I hope I get the funding for this because I really want to move on to the actual hardware aspect, start soldering, and actually test it out. I will be using this in multiple other projects as well.
So yeah, thank you for reading.
@yaasshh
on
EMG Signal Recorder
1h 4m 46s logged
So first Dev-Post,
I am building a signal recorder for electromyography (EMG) signals, which are essentially the electrical impulses that muscles produce when you contract or relax. I am recording those signals through electrodes on an arm that will be connected to a circuit I am currently working on.
My plan is to:
So far, two stages have been completed:
