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...
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...
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...
30 SEPTEMBER 2015
With the dark winter evenings drawing in we are starting to use the bikes more at night than in the day time due to work commitments to try to keep fit.
We purchased a set of Hope One LED lights earlier this year and they...
22 AUGUST 2015
Last week we ordered a new compact pc for the loft workshop and a new wide screen monitor to use for our electronics development and also to use with our SDR radio.We purchased a Quiet PC Sentinel Mini system from www.quietpc.com...
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...
01 AUGUST 2015
In 2014 we purchased a HACKRF One SDR radio and quickly found that the receiver was being swamped with local interference from nearby transmitters and other equipment. We installed the optional HACKRF EMI Shield which...
31 JULY 2015
Since building the Powerpole fused distribution boards we have been planning to make a case to prevent accidental short circuits on the pcb boards when power is applied.
We looked at commercial cases and found some suitable...
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...
07 JULY 2015
Lightning over Poole from the Studland road viewpoint
The full size image of the photo above is on my Flickr pages.
On the 3rd July we had a huge thunderstorm and rain storm in the evening which resulted in over...
15 JUNE 2015
Since the announcement that Windows 10 IOT was being released to use on the Raspberry Pi model 2 we have been experimenting with the platform and Andrew has been busy converting the Python 2 and 3 libraries he had written...
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...
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...
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...
06 APRIL 2015
With the mechanical side of the soldering robot well underway the next stage was to begin work on the electronics that will control it. In a previous post I wrote about our decision to use the Antex TCS230 soldering...
25 MARCH 2015
Today we finished the machining and building of the first of two solder feeders for our DIY soldering robot project.
The main body of the feeder was milled from 10mm aluminium and the tensioner roller assembly was milled...