electronics

USB MultiComms Part Four Case

11 NOVEMBER 2015

This is part four of the USB MultiComms project, you can view part one, two and three from the links below: USB MultiComms Part One - USB Board USB MultiComms Part Two - RS232 Board USB MultiComms Part Three - UART Board With...

USB MultiComms Part Three UART Board

11 NOVEMBER 2015

This is part three of the USB MultiComms project, you can view part one and two from the links below: USB MultiComms Part One - USB Board USB MultiComms Part Two - RS232 Board With the main controller board and the RS232...

USB MultiComms Part Two RS232 Board

31 OCTOBER 2015

This is part two of the USB MultiComms project, you can view part one where we built the controller board at USB MultiComms Part One - USB Board In part one of this USB MultiComms I detailed the design and construction...

USB MultiComms Part One USB Board

15 OCTOBER 2015

Designing a USB communications box. Several of the projects we have been working on recently needed some form of serial communication with our PC, either through RS232, UART, I2C or SPI and at the moment we use a handful...

Sinclair ZX81 Kit Build

13 OCTOBER 2015

Several years ago we purchased a mint conditioned unopened Sinclair ZX81 Computer Kit from eBay with the intention of building it sometime and having another classic ZX81 computer which was the first computer I had when...

USB Smart Charger with Bluetooth LE

11 AUGUST 2015

For the past few months we have been working on a set of new USB smart chargers which run from our off grid 12V system to be used for charging tablets, smartphones and other devices which charge from a USB port. The aim...

Designing a PIC24 Development Board

08 JULY 2015

Several of our recent projects have used a 16 bit PIC24 microcontroller from Microchip.  The PIC24FJ128GC006 contains two 16-bit ADC channels which makes it useful for measuring voltages more accurately than the 10...

DIY Pick and Place Speed Updates

19 MAY 2015

Since adding the various modifications to the DIY pick and place machine in the past few months we have now been able to tweak the speed and acceleration of the stepper drivers to improve the machines placement times. We...

DIY Soldering Robot Project Completed

04 MAY 2015

The DIY soldering robot which we have been building in our spare time over the past few months is now working and we have been able to solder some test Raspberry Pi expansion board headers with the machine. Before starting...

Soldering Robot Designing the Motor Driver Board

07 APRIL 2015

For several months now we have been working on a new soldering robot to solder the 40 pin headers onto the raspberry pi expansion boards we build and sell on our AB Electronics UK website.  The mechanical side of the...

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About Me

Brian Dorey

Welcome to my blog, here you will find my projects and other things.
I make websites and manufacturer and sell expansion boards for the Raspberry Pi range of computers.

AB Electronics Raspberry Pi shop

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