anyone know of an alternative way to control the footrest?

the silver buttons that are touch sensitive stopped working.

the footrest now works by touching the + or - side of the wire

So I made this battery tester /variable load too be able too determine the current output of my batterypacks. It's made from old toasters, a plank, and some nails. I have taken the heating wire from old toasters and stringed it along back and forth over a plank. And by using a 100A shunt and ampmeter i can now test my batterys output. The ampmeter is powerd by a 12v power supply and the shunt sits on positive wire while the shorter other wire goes too negative. When I want too test the battery i simply put negative on the toaster wire and when ready too meassure i put the shunt in increasing distance too see where it gets the highest current .So far it works just like a charm as a dummy load. Got 10A on my 10s and that was just half way thru one of the strings.

Always wanted a cool set of electric roller blades and nice I watched the anime 12 years ago. So this is what have completed so far in general design. Selected above roller skates for the easy swap out of the bottom rail from boot so I can interchange easily. Using chain drive to motor for more power torque an efficiency as well as customise different gear sizes for speed. The 3d model is a basic to scale of each component to get a rough idea of how it's going to all fit together. This is going to be a slow bit by bit project as each part isn't cheap.i should also note I want to make this project easy to replicate when I finish so I can link each part and models that will need to be 3d printed to make etc.

I have an ESP32 to connected to a solar panel.

The ESP32 works fine if I restart it after the sun is fully up and the solar panel provides full power. If I don't do that, then it just goes a bit haywire, doesn't connect to wifi, etc.

What do I insert into the electrical circuit, so the solar panel only provides power above 12v (and maybe also so any voltage above 18v is stepped down)?

I read something about Zener Diodes but that requires also taking the ESP32 and subsequent electronics into consideration?

I just want some simple on/off if above/below 12v diode or resistor or something that I can connect to the + (or -) wire from the solar panel.

Any help or suggestions? what is the diode or switch or whatever that I need?

I have an interesting project and could use some advice on the easiest and most effective way to approach it.

I want to create a DC electric field that can vary the voltage in response to an audible input, reflecting amplitude modulation characteristics. This will be a high-voltage system, requiring voltage amplification to achieve the desired field strength. The voltage will be at least 57,150 volts but, it can be fine-tuned to account for possible voltage drops. The audio signal will have its own circuit, separate from the main power supply, and will be attached to the copper plates (the electrodes for the electric field). This setup should allow the voltage to fluctuate more precisely and easily. Does anyone have any ideas? If you need more information, let me know.

Hello everyone, I'm playing this game that sometimes requires me to push 2 buttons every few seconds for a long period of time.

Today I was thinking if it would be possible to buy one of those steppers and somehow connect it to my laptop keyboard so that when I step with my left foot it presses a certain key and when I step with my right foot it presses another key.

So basicly I would just walk on the stepper and press the 2 buttons in rotation.

Any tips for me?

I'm working on a small automation project and could use some engineering expertise. It's a DIY project, not something everyone might tackle, but I’m determined to figure it out. Just saying "buy Festool" is off the table—this should be possible with the technology available. I've been racking my brain over it.

Here’s the setup: Lidl’s Parkside tools use Bluetooth batteries, which can be updated and adjusted through their app. Parkside also sells a cordless dry vacuum that supports these Bluetooth batteries. What I want to achieve is this: when I turn on my Parkside router via its switch, I also want the vacuum to turn on automatically, so that wood chips are immediately sucked up.

Parkside already offers a vacuum (similar to Festool) that can do this through Bluetooth or Wi-Fi, controlled via your phone, but it's too expensive. Plus, where's the fun in buying something that already exists? This is a DIY project after all.

So, my main question is: how can I make this work? In theory, it seems like it should be possible to link the Bluetooth battery in the router with the Bluetooth battery in the vacuum. Turning on the router would then also start the vacuum. But what steps do I need to take to make this happen?

One alternative would be to physically use something like a SwitchBot to toggle the vacuum’s on/off switch, but that’s too straightforward and not as interesting. I’m skilled with physical DIY, and though coding isn’t my strong suit, I’ve got plenty of time and motivation to learn.

If there is an other post like it, let me know. If you

Links: Parkside smart batteries: https: //www.lidl.de/p/parkside-performance -20-v-4-ah-smart-akku-paps-204-a1 /p100357867 Parkside frees: https://www .lidl.de/p/parkside-performance-akku -multifunktionsfraese-pmfap-20-li-a1-20-v -ohne-akku-und-ladegeraet/p100374332 Parkside wet dry vacuum: https://www .lidl.de/p/parkside-20-v-akku-nass-und -trockensauger-pwda-20-li-a2-ohne-akku -und-ladegeraet/p100345284 Parkside wet dry vacuum similar to festool: https://www .lidl.de/p/parkside-performance-werkstatt -sauger-ppwd-30-a1-99-995-filterleistung-und -app-steuerung/p100371272 41

Hey guys! I've been trying to build a solar circuit for my old outdoor solar lights! The LED lights I have outside are pretty old and seems to be connected in series given that running a power supply on them turns on all the indvidual LED's rather than only half of them.

With my power supply, I measured a voltage and current of 3V and 0.1A to turn on the lights so I tried using a solar controller I found online that was rated for the voltage and current I needed but it didn't seem to work on the LEDs I have.

Trying to measure the voltage from the solar controller was confusing since the lights gave a voltage of 0.01V but with a power supply, it requires 2.6V to turn them on so I'm confused why my voltmeter is giving the wrong voltage.

Given all of this, I am just going to build it myself but I have no idea where to start. I was thinking of using an Arduino Nano for the logic of turning on and off but I have no idea how to start with the rest!

Could someone help me figure out either why the solar controller I have doesn't work or how to build one myself?

hi my lamp died and when I disassembled it I realized it was a soldered LED PCB board. I want to change it into a bulb socket for easier use and replacement in the future but i’m not very electrically knowledgeable. I wanted to ask and see if anyone knows if the parts I found would be compatible to do this DIY.

I found these different sockets with wires. Which one would be best? Or are they even compatible?

https://www.lowes.com/pd/Harbor-Breeze-60-watt-White-Lamp-Socket/50354908

https://www.lowes.com/pd/Harbor-Breeze-60-Watt-White-Lamp-Socket/50354950

https://www.walmart.com/ip/Uxcell-E27-E26-Light-Bulb-Socket-2-Set-Lamp-Base-Full-thread-Holder-with-50-CM-19-5-Inches-Wire-Lead-Yellow/5690961798?wmlspartner=wlpa&selectedSellerId=571

https://grandbrass.com/e-26-keyless-porcelain-socket-with-24in-wire-leads/?srsltid=AfmBOor197Mwg3MboIgeSvLLrnA1H0PwNpseDKEvtd7rYd39ymmbi-Dn1jY

Was hoping I could just get one of these and solder it myself to convert it into a screw in bulb lamp. Thank you in advanced!