RandomUser
@RandomUser@lemmy.world
- Comment on Tips and tricks for beginners 1 week ago:
When you buy components, buy a bag of them. Good for when you let the smoke out of one, and you can have several projects on the go at a time.
- Comment on Is there such a thing as an automotive relay with no resistor? 2 months ago:
Not sure I understand the problem fully, but you want a circuit to operate when you push the horn button, without affecting the horn operation.
Chances are the relay coil is drawing to much power.
Have you thought about adding a transistor to your circuit? It would draw very little current from the horn circuit but should allow you to drive something else. - such as your relay. It would of course require you to do some electronics.
- Submitted 3 months ago to askelectronics@discuss.tchncs.de | 1 comment
- Comment on Good right angled board to board connectors 4 months ago:
Ermmm… If you use several pins to get the current rating, what happens if one of the pins fails or gets corroded? Won’t you risk generating heat? Think I’d prefer nice big connectors for the power and to keep the data lines safely segregated. Depends on your needs and design I suppose.
- Comment on How can I improve my handwriting? 4 months ago:
It’s like everything, practice slowly, get good form wired in, then when you write fast for exams your writing will be worse than normal, but still legible.
- Comment on How can I improve my handwriting? 4 months ago:
Practice writing slowly and with good form. Write regularly, give yourself practice pieces. At uni you will be writing FAST, so it’ll get worse if you don’t keep disciplined.
Alternatively, learn to touch type, and type any work you need to hand in. - if your handwriting is so bad, you may want to make your notes legible to yourself for revision.
- Comment on Suggestion for mounting ServoMotor on the door for Automatic Door Unlock with ESPHome on ESP32 6 months ago:
Butt your enclosure right up against the lock body, then you reduce shearing forces trying to pull it off the door. Extend the pull bar through your enclosure so you still have a manual override.
- Comment on Suggestion for mounting ServoMotor on the door for Automatic Door Unlock with ESPHome on ESP32 6 months ago:
While I’m not adverse to home automation, is this something you need in your life, or just want? I like my perimeter security too be simple and tight, extra complications make the security audit much harder.
Will your insurance stand up to home made remote control unlocking?
To answer your question, place the servo in a suitably large enclosure and practically any adhesive should work, e.g. 3mM command strips or even velcro or double sided sticky. When confident that this is what you want, use a screw.
- Comment on Does anyone speak hairdresser? I need help communicating. 7 months ago:
I’ve avoided the conversation entirely. Ever since the pandemic I’ve done my own hair with clippers. Made a good enough job of it, even if I’ve sometimes needed to do a small adjustment the next day.
For a simple style it’s not that difficult if you take your time.
- Comment on Where found Li-po battery in west europe ? 8 months ago:
Do you on now anyone who uses disposable vapes? There may be a useful battery in one of those if you can’t find an alternative.
- Comment on Learning computer/OS for kids, that teaches command line? 1 year ago:
The PI is always a good place to start, but they’re not cheap anymore. You can still do some useful things at the command line (not sure how fun, but a great education), python is there and very accessible. - get a camera and you could do some great things with open CV. Not sure what packages are out there though. Think you’d just have to follow some web tutorials.
As an alternative, have you considered an Arduino kit? Lots of great projects, all very well documented. Playing with LEDs, sensors, motors etc may keep their attention longer than a bash prompt.