admin – Page 4 – Adrian’s electronics blog

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General

Ebay transistor tester testing

admin
19/11/2017

I bought myself one of those cheap transistor testers off ebay based on the Ardutester at https://forum.arduino.cc/index.php?topic=164112.0 which basically is an Arduino project that someone made which the Chinese commercialized and ripped off. It’s actually a great bit of kit but it’s clearly based on an Arduino project that was never intended to be a […]

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Microcontrollers

Playing with an 8051 microcontroller

admin
13/11/2017

I’ve been using the Arduino for a while now and made a few projects but at work we use the 8051 as the primary micro for our in house equipment. Yeah it’s outdated but Silicon Labs have taken the original 8051 design and vastly improved it with clock speeds of 100Mhz. It can easily outperform […]

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A WIFI spectrum analyzer and Talk-Talk routers suck A$$

admin
03/11/2017

A close relative of mine has been having lots of wifi connection issues over the last few months but just on a couple of devices. A scan of the wifi neighborhood showed only a couple of signals from adjacent houses which were too weak to cause a problem. I tried changing the channels, 150 or […]

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First useful Arduino project – NIMH battery tester

admin
25/10/2017

***Updated*** now version 5 which has a vastly improved display layout and better voltage reading accuracy. Download can be found towards the bottom of this page. During my clearout of old junk I came across an LCD display fitted into a small plastic case with a PC parallel cable attached which was originally used for […]

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Projects

Clear-out day – and PSU refurb

admin
24/10/2017

A few weeks ago i decided it was time I got rid of some old shite I’ve been keeping for years. I also decided to make this blog and some of my early electronics projects I have featured on this site. Not that they are any use to me nowadays but I want to keep […]