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32 Questions

Fake a panasonic battery to revive camera to copy photos from internal memory

What's the name of this nice spring contact?

Why batteries need to be custom and smart nowadays?

What are these coil components with three legs?

Any device with audio jack as UI

MP1584 DC/DC step down converter cause whine in audio, how to avoid?

What is the name of these colorful connectors?

Philips 26PF5321 backlight mod, dim backlight

Why is the usb shield always tied to ground (GND pin)?

What is the exact name of this type of transformer?

What is this circular rod with wired wrapped 'coil' and ceramic capacitor?

SSD1306 I2C: Draw only changes works however on wrong position, how to set position (command)?

Reading multiplexed or charlieplexed display, is it possible and how?

Three different schemes to amplify audio input, which one is correct?

Digital Optical Volume Control with LED and photoresistor (light to seperate circuits, optical pot)

BA3121: Ground loop supression is great however very thin audio quality

What kind of material is this and what is the purpose of this?

Naming confusion, how to connect DAC (BB/TI PCM1603KY) I2S, which pins do I need to use?

Serial bi-directional (one-wire half-duplex) digispark device works however answers itselfs

COG PFC2119x driven LCD Display: Add custom characters, can get it to work

BA3121 datasheet pin confusion

JL (or maybe something else) misterious branded IC's [closed]

Reuse a S25FL256S SPI 32MB flash module even when it is possibility protected?

uln2003a: Switching ground of device works, however, optional USB function of device doesn't work correctly

Where can I find a datasheet/info of/on this “music speakers” 35 segment LED display with 7 legs?

Can a low current device be damaged by a high current device when in parallel?

Isolated 24VDC-5VDC input to 5VDC DC/DC converter/regulator package (avoid ground loop, flexible input)

Fight inrush current with PTC, good go or not?

Attiny85, reading analog values from PIN3, reports 654 on idle?

Why do we still use high voltage at home (on sockets) in the 21st century? [duplicate]