Wednesday, 25 June 2014

Adafruit NeoPixel Ring 3D Sketchup Models

Just a quick post to share my Adafruit  NeoPixel ring 3D Sketchup  models :)

Available to download on the Project Design Files page.

On a side note Tim's Blog has some nice information regarding clones of the WS2812 series RGB LEDS, including their respective timings, you can read more on the subject on his blog here.

Monday, 9 June 2014

Facom Micro-Tech Screwdriver Tool Holder Project

With a of fresh delivery of Facom Micro-Tech Screwdrivers, I decided it was time for some workbench organisation in the form of a tool holder, inspired by Werner Berry.

Monday, 19 May 2014

Macgyver SMD Soldering Iron Adaptor

Surface mount component removal can often be tricky. With a little thought, and a piece of copper wire, small components can now be safely and cleanly removed, without damage to either the component or PCB tracks. In the following video I show you how to make an quick and simple adaptor for your soldering iron. Macgyver would be proud!

Friday, 28 March 2014

Simpson 260 Series 7 & 8, Reverse Banana Test Lead Adaptors

I was lucky enough to score this mint condition Simpson 260 Series 7 (1981 Vintage) on eBay, for the princely sum of £30. It came complete with the original Simpson outer case and  test leads. The meter was in such good condition I doubt it left the case much at all.
Simpson in the USA, have been making the 260 series since 1939, even today it has not really changed in appearance since the Series 1, you can still purchase the meter as a Series 8 for around $300.

There is one issue with the Series 7 , 8 though! 

Tuesday, 25 March 2014

Dr Brown's Capacitor ESR Tester

 I finally got round to making my capacitor ESR tester this week after finding a nice simple 5 transistor version by EEVBlog member Jay_Diddy_B. Unfortunately, for me, the design was only SMD so, I decided to replicate his schematic in Eagle PCB using a through hole component design.

I will not be going into much detail regarding ESR or Equivalent Series Resistance Meters as, there is already plenty of other sources of information on the subject. Yet, every tinkering  knows capacitors are guilty of a lot of sins in electronics. Capacitors love to throw red herrings! They can appear physically fine (no bulge), show good capacitance and hide in circuit, standing to attention like the Queens Guards hiding shorts and high resistance under their big hats. This is where the  ESR tester can be a saviour, with the ability to test for "out of specification" high resistance, within the capacitor. They can also be used to test "in circuit", without the need to remove every capacitor in the circuit.

I included a few Easter Eggs in the Meter Scale!

Friday, 14 February 2014

uVolume Mk2 USB Volume Control Prototype

Prototype test of the of the ┬ÁVolume Mk2,  USB volume control. Now adds IR remote control with multimedia features.



              Arduino Compatible (Atmel Atmega32u4)
              Manual volume adjustment though the rotary encoder
              (IR) Infra red  remote control of volume and multimedia controls.
              Apple remote or user defined
              Visual and audible Feedback

 Manual Control:

              Volume Up Or Down,
 IR Remote Control:

              Volume Up Or Down,
              Previous Track,
              Next Track,
              Play/Pause Track,
              Stop Track.

Previous version link

Saturday, 4 January 2014

Midas 2004 OLED Character Display

Updated 09/01/2014 Arduino IDE V1 Library Support

After playing with its' little brother, the Midas MCOB21605G1V 1602 OLED, I was hoping for a smooth transition to its "Big Brother," the Midas MCOB42005A1V 20x4 character display...
Unfortunately, the previous Arduino OLED libraries gave nothing in the way of a working display.