Category Archives: Electronics

GeoCoin – My 2nd Electronic geocoin

This is my second electronic GeoCoin using the same electronic design. My first geocoin was one shaped like the state of Florida – see THIS-LINK. This one is in a more traditional geocoin shape. The only thing that it does is blink … Continue reading

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Repair/Upgrade SANGEAN RCR-5 Clock Radio

I have a SANGEAN RCR-5 Alarm Clock Radio that I use to play its radio each morning at the set alarm time. The RCR-5 radio has excellent audio quality for such a small unit – not tinny at all, with … Continue reading

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Tempered Glass Smartphone Screens

I just finished installing five tempered glass screen covers onto two LG G2, one Motorola G5 Plus and two Samsung Galaxy S5 smartphones. I used Supershieldz because of many rave reviews about their product. Well, I’ll add my rave review. … Continue reading

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Electronic Geocoin

I used pcb-rnd to design a Printed Circuit Board (PCB) with a “geographical” shape, the shape of the state of Florida, for a Christmas present of six assembled devices for my brother who lives in Ocala Florida and is an … Continue reading

Posted in Electronics, geocaching, Linux, PCB Design | Tagged , , , , | 1 Comment

Smartphone screen adhesive – some empirical information

When installing a replacement screen on a Samsung Galaxy S5 I used a Chinese product named “ECO-FUSED” in a 2mm width. When I removed the original factory adhesive I noticed that it seemed a bit thick – certainly thicker than … Continue reading

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Fixed Samsung TV Turning On & Off

My 40″ Samsung TV model LNT4053HX/XAA developed a problem where when first turned on it would make clicking noises and turn on and off until it finally stayed on. I lived with it for a few months but it progressively … Continue reading

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Inexpensive ESP8266 in UNO Form

Two+ weeks ago I purchased an ESP8266 Module board in an Arduino UNO form factor. See Fig.1, below. It cost me $3.20 US including shipping from China, I didn’t need it or even have a use for it, that I … Continue reading

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Pololu USB AVR Programmer V2

I recently purchased another ATmel AVR programmer. I normally use a USBasp programmer with out-of-circuit chips and, less frequently, in-circuit chips. Anyway, Pololu is an electronics manufacturer based in the USA, specifically Los Vegas, Nevada. I’ve previously used a couple of … Continue reading

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Video on Creating pcb-rnd PCB footprint e/w Silk from part’s PDF spec

When I create Printed Circuit Boards (PCB), I prefer using the program pcb-rnd. Pcb-rnd was originally forked from gEDA’s PCB program but it has incorporated so many new functions and features that its capabilities far exceed the gEDA’s PCB program … Continue reading

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Nifty SD Card Gadget

I recently purchased, on eBay, a nifty little SD Card gadget. You can plug either a regular or micro-size SD card into it and then plug into either a standard or micro USB port. It is pretty handy, especially for … Continue reading

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