Hacking & Experiments

Hacking and other various miscellaneous experiments.

EEVblog #1297 – Turn an LCD into E-Paper!

Dave’s long term LCD DC bias experiment has turned a regular 7 segment LCD effectively into an E-Ink/E-Paper display! Microchip LCD App Note: http://ww1.microchip.com/downloads/en/AppNotes/AN658-LCD-Fundamentals-and-the-LCD-Driver-Module-of-8-Bit-PIC-MCUs-00000658C.pdf Datasheet: https://www.lumex.com/spec/LCD-S101D14TR.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1297-turn-an-lcd-into-e-paper!/ Podcast: Download

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EEVblog #1287 – Gatekeeper Shopping Trolley Lock Investigated

Dave’s local shopping centre just installed shopping trolleys with electronic locking wheels fro ma company called Gatekeeper System, how does it work? Teardown time! Subscribe on Library: https://lbry.tv/$/invite/@eevblog:7 FCC website: https://fccid.io/SOX-W9200/ Forum: https://www.eevblog.com/forum/blog/eevblog-1287-gatekeeper-shopping-trolley-lock-investigated/ Podcast: Download

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EEVblog #1283- What is Mains Ripple Injection?

What is Mains Ripple Injection and control? A mystery bunker item teardown turned out to be a very interesting and obscure bit of test kit. Subscribe: http://www.eevblog.tv Forum: https://www.eevblog.com/forum/blog/eevblog-1283-what-is-mains-ripple-injection/ Podcast: Download

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