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Rupert Hirst
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Rupert Hirst

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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 condi...
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Rupert Hirst

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Prototype test of the of the µVolume Mk2,  USB volume control. Now adds IR remote control with multimedia features.
Prototype test of the of the µVolume Mk2,  USB volume control. Now adds IR remote control with multimedia features. Features:               Arduino Compatible (Atmel Atmega32u4)               Manual volume adjustment thou...
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Rupert Hirst

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After seeing the  "ENGINEER"  SS-02 Solder Sucker, I just knew I had to have one! The construction is second to none, featuring machined aluminium components, plus a easily replaceable heat resistant silicone nozzle... Gene...
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"LCD Smartie is open-source (cough!) software which allows a character LCD display to be used as an auxiliary display device for a PC. The program has built in support for many systems statistics (i.e. CPU Load, Network utili...
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Rupert Hirst

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I included a few Easter Eggs in the Meter Scale!
 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 sc...
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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 li...
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After the success using the Midas MCOB21605G1V 1602 OLED display in my previous article. My next challenge would be connecting the module to my  i2C backpack custom PCB, Using the PCF8574 i2c IC . The layout also pro...
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Rupert Hirst

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After the success using the Midas MCOB21605G1V 1602 OLED display in my previous article. My next challenge would be connecting the module to my  i2C backpack custom PCB, Using the PCF8574 i2c IC . The layout also pro...
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Rupert Hirst

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Adafruit Trinket compatible µVolume USB Media Control PCB
Back in August, you may have read my article regarding the Attiny2313/ Attiny84/ Attiny85 USB Volume Controls . The article appears to be pretty popular on various websites, including a nice mention on the Adafruit Blog . With the release of the  Adafruit T...
Back in August, you may have read my article regarding the Attiny2313/ Attiny84/ Attiny85 USB Volume Controls. The article appears to be pretty popular on various websites, including a nice mention on the Adafruit Blog. With ...
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"If I can't beg,buy,borrow or find something then I guess I will just have to make it!"
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