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electronics

04 DECEMBER 2015

Nest Learning Thermostat 3rd Gen Hot Water Installation

Today the new 3rd Gen Nest Learning Thermostat with hot water control arrived which we had ordered last month when the new UK model with hot water control was announced. We needed the Nest Thermostat with the hot water...

30 NOVEMBER 2015

Raspberry Pi Solar Data Logger Version 2

Three years ago we designed a solar data logger based on a Raspberry Pi which monitored the solar heating and PV system in the house as well as measuring the amount of energy we were using.  This system has served...

11 NOVEMBER 2015

Mastervolt Soladin 600 Optical Interface Noise Fail

Since we solved the RF interference problems http://www.briandorey.com/post/mastervolt-soladin-rf-filtering with our Mastervolt Soladin 600 mains inverter we had planned to use the data port to link to our Raspberry...

11 NOVEMBER 2015

USB MultiComms Part Four Case

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...

11 NOVEMBER 2015

USB MultiComms Part Three UART Board

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...

31 OCTOBER 2015

USB MultiComms Part Two RS232 Board

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

USB MultiComms Part One USB Board

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

Sinclair ZX81 Kit Build

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...

11 AUGUST 2015

USB Smart Charger with Bluetooth LE

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...

08 JULY 2015

Designing a PIC24 Development Board

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...

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