USB MultiComms Part Three UART Board

USB MultiComms Part Three UART Board

Posted Wednesday 11 November 2015 10:00 Page View Counter 124

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 board built the next...

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USB MultiComms Part Two RS232 Board

USB MultiComms Part Two RS232 Board

Posted Saturday 31 October 2015 15:26 Page View Counter 167

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 of the main USB board that...

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USB MultiComms Part One USB Board

USB MultiComms Part One USB Board

Posted Thursday 15 October 2015 16:46 Page View Counter 140

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 of different USB to serial...

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Sinclair ZX81 Kit Build

Sinclair ZX81 Kit Build

Posted Tuesday 13 October 2015 11:51 Page View Counter 156

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 I was 7 years old. After...

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Hope One LED Light GoPro mount

Hope One LED Light GoPro mount

Posted Wednesday 30 September 2015 20:54 Page View Counter 231

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 come with an easy to use...

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QuietPC Silent Fan Upgrade

QuietPC Silent Fan Upgrade

Posted Saturday 22 August 2015 13:51 Page View Counter 119

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 as the website...

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USB Smart Charger with Bluetooth LE

USB Smart Charger with Bluetooth LE

Posted Tuesday 11 August 2015 15:34 Page View Counter 153

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 of the new smart chargers...

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HackRF One Shielded Case Installation

HackRF One Shielded Case Installation

Posted Saturday 01 August 2015 12:19 Page View Counter 194

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 helped to remove some of...

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Powerpole Fused Distribution Board Case

Powerpole Fused Distribution Board Case

Posted Friday 31 July 2015 22:09 Page View Counter 94

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 plastic boxes but we...

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Designing a PIC24 Development Board

Designing a PIC24 Development Board

Posted Wednesday 08 July 2015 11:47 Page View Counter 138

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 or 12 bit ADCs you normally...

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