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STICKY Megathread: Random observations about electronic devices

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Quectel Launches "Cost-Effective" KG200Z LoRa Module, Built Atop the STMicro STM32WLEx - Hackster.io

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Dangerous Prototypes Unveils the Next-Generation Bus Pirate 5, Now Powered by a Raspberry Pi RP2040 - Hackster.io

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TIL, MFJ closing down manufacturing facilities effective May 17th 2024

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Power Supply Design: Switch-Mode vs. Linear

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Make Your Own Oscilloscope(Mini DSO) With STC MCU Easily : 9 Steps (with Pictures) - Instructables

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DIY sonar scanner (practical experiments) [14:30]

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This Device Made Phone Calls Cheaper! [Ringway Manchester] [08:22]

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IMG

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Picked up a cheap Philco transistor radio at the show today. [3024x4032 - 971KB]

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Torching A Computer (While It's Running) [12:01]

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Minimum voltage applied to a super-bright LED [2048x1400 - 375KB]

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I built an LED Sphere (Ping-Pong Size) [08:09]

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Fans; High is next to Off on purpose [17:48] - Technology Connections

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Capacitors - Dielectric Absorption

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Observations SD card reader by brand “entryx” sometimes automatically reconnects, then reading speed drops from 20 to 3 MB/s until reinserting memory card.

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Experiences 2012: A Samsung DVD-Video/Audio player had a feature that memorizes damaged files and mark them as unplayable. (Kept in memory even after disc ejection.)

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Archive of the Dick Smith Electronics Catalogue 1987 1988 : Internet Archive

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Voltage Boost Circuit / Bootstrapping [04:14]

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New space-saving RAM sticks that jam up to 128GB of memory in a laptop get industry's stamp of approval - CAMM2 standard ratified by JEDEC

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Why blow out a candle with your lungs when you can build an electronic ionic thruster circuit to do it?

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Observations Some CD players from different vendors, when stumbling upon damage on audio CDs, accelerate disc rotation when the laser lost track, before trying to seek the last position again.

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Learn more?

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VL53L7CX Time-of-Flight (ToF) sensor offers camera-like 90° field of view

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TESLA Lanskroun Tantalum Capacitors History

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A stretchy display for shapable electronics

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TIL there's a whole IGBT thing I was totally unaware of: Bi polar tran sister

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