I want to merge this spliced micro USB cable coming from the Raspberry Pi Pico, to a female USB-C connector. I have a project where I want to make a guitar hero guitar detachable from the outside of the guitar, where I can plug in a USB-C cable when I want to use it. Appreciate any advice, thank you!
TL;DR: is there a tool that will let me know for sure the power is off to a light fixture?
I have a 120 year old house that was divided into apartments for much of its life, so the electrical panels are somewhat Lovecraftian (incomprehensible terrifying and sanity-destroying monstrosities with tentacles everywhere. The electrician who upgraded part of one of them when we restored the kitchen said it’s safe, so my question isn’t about that.
We have an outside spotlight that comes on when it wants to, and blinks like it is conveying Morse code, so I’m going to replace it. I know the game with the breakers (one of us in the basement flipping breakers and yelling “well?” and the other near the plug/switch/fixture in question yelling “not that one!”).
Because the spotlight is so temperamental, I don’t trust it to inform me accurately if the correct breaker is off. Is there a tool I can use (maybe a multimeter?) to be sure the power is off before I touch the wires?
Guys. I have tried it for three days, but the results are still pretty bad. I always used the flat tip to wire the electronic components, and the thing is, the wire can never be melted around the copper circle, even if the temperature was already switched to 400 Celsius. I browsed some articles and tried to melt the wire on the head and wipe the head with the pin. And that’s the result. The multimeter tells me that there is no current between the terminals when I try to connect something. Obviously, even if it looks kind of okay, it is still trash.
The soldering pen is 80 W.
AI cannot help me. And I am not sure if the problem comes from the soldering pen, the head, the wire, or just my technique.
I am just a beginner at soldering; my experience level is also three days. I am happy to receive any feedback and advice. Thanks in advance.
This meat thermometer stopped turning on a few days ago, most probably because I left it outside for some time while raining.
Since it seems to be a simple device, is there a way to save it?
I've included some pics of the device.