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Need advice on soldering.

How do we know orbits that take hundreds of years?

Looking for light sensors that go to at least 120,000 lux

Can an analog audio signal somehow be converted into a differential signal?

Programming Arduino using UART vs SPI

can these usb connectors be soldered back?

My speaker battery is dead I’m looking to change it for a bigger one, if I want to upgrade do I look for one with more volts or ah? Or are the volts supposed to stay the same and just ah is changed?

An Idea on Black Holes

Is there a mod to help with placing signals on long sections of track?

I have been Googling my laptop specs and I cannot find a straight answer as to whether or not I can run this game decently

Can anyone explain why my potentiometer voltage is so wrong?

Regular false readings from mechanical keyboard switch

Pure vs modified sine wave inverters for electronics

I need a level shifter to step down 5V to 3.3V. I am using SN74LV4T125 level shifter from TI. This IC has individual enable pins for all channels. Can these pins be tied to VCC so they remain enabled all the time? I don't have sufficient pins to connect them to the microcontroller.

How can I get my servo sg90 to have more resistance? I’m trying to get it to stop a ball on a track but the ball (about 4 oz) is turning the servo. Any ideas?

How many hours on 20000mAh power bank?

I'm trying to make a simple theremin project with the Elegoo Uno R3 following an online tutorial (link in comments), but there's an error of "redefinition of 'void setup()'", I'm pretty sure all the electronics are hooked up right, so is it a problem with my code? (code will also be below)

Question about MPPT

Modules: Additive or Compounding?

DNS Resolver woes.

Stupid question about the sun

translating code in ms to minutes

Question: Is there a relationship between transmitted power and power delivered to the antenna?

DDR5 RAM Cleaning Question

Moving from 220V 50Hz land to 120V 60Hz

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