yes, this is my dad's account,
it runs off of a battery i took from my roomba, a transformer from a bose companion speaker, a lightbulb and an arduino with a adafruit motor shield.

I created my own driver for this drsstc, right now im taking secondary feedback so it doesn't really count as a drsstc, i havent tried tuning it to zcs

I am sharing it here too because i watched electroboom's video on op amps to learn about them, any suggestions will be appreciated

A while ago, I bought this cheap trimmer and instantly regretted it when I first used it. I kept it because I hate throwing things away that still work. Not long after that, the battery started to get weaker and I ran it while plugged in which worked okay. Today however I wanted to shave off my unibrow and trim my beard and that stupid thing stopped working for good.
I went to rage fix it with little to no knowledge of electronics. So I opened it and saw that some water must have gotten in there and killed the battery. Well handy as I am, I figured out a perfect solution. Just rip out the battery and all the unnecessary stuff and connect the motor directly to the power input. And it works fine! I mean sure it turns on the moment I plug it in and runs like an old airplane motor, but I can use it. I probably should avoid getting it wet now I guess.
What do you think?

Luckily the battery did not explode because
Probably the charging ic or the pmic ic sacrifice itself before blowing up the battery

So I made this 3S Balance charger that uses three TP4056 modules and three 230VAC to 5V DC modules so that they can work together and charge eatch string of cells individually, this makes it so that every time you charge your battery you make sure that it will be balanced once fully charged and no cells can stop charging before they are fully charged like with a normal chargers. And the best part is this is scaleable to how many strings you want even a 100s1p pack. Every module have to have an personal galvanically isolated power source so if you don't have 5V power supplies you can use three phone adapters instead using the usb port. It's very important that the power supplies are isolated from eatch other, you can't use one power source for all three modules. I don't remember exactly why but if i am not mistaken the GND is chared by the input and output making it impossible to series connect the output if you parallel the input making a shortcurcuit.

interesting connector for a pool water filter. I'm sure no one lost the original cord and used a line voltage cord

Looks like duct tape

Repost about your mom's other house

Can't possibly be any problem with this, right???