solar power

Low Voltage Cut off using MAX8212

10 FEBRUARY 2013

Since upgrading our solar charge controller to a MPPT model we lost the facility for the charge controller to shut down the inverter when the battery voltage dropped too low. This resulted in a few days when the battery voltage...

RF Shielding on a Mains Inverter

19 SEPTEMBER 2012

The mains inverter we have for our solar system generates a lot of RF interference on our ham radio transceivers and also across the entire HF spectrum. The inverter body has plastic ends and very little filtering for the...

Raspberry Pi Solar Data Logger

24 JULY 2012

The Raspberry Pi solar data logger project is now live and is the latest version of our previous data logging systems using Arduino and Android + IOIO board projects. The data is used on a custom reporting website on home.briandorey.com...

Raspberry Pi Fan Controller and Interface

20 JULY 2012

To make it easier to connect the various cables to the new Raspberry Pi ADC board we decided to make a second PCB with header pins to connect to the ADC board and take these to screw terminals. Also we wanted to have a temperature...

Raspberry Pi I2C Analog to Digital Converter

11 JULY 2012

The original plan for the Analog-to-Digital Converter was to use the Dallas 1-Wire system and use the DS2450 1-Wire Quad A/D Converter which was advertised as being a 16 bit device but after buying two of the chips which...

Raspberry Pi I2C Microchip MCP9800123 Temperature Sensor

06 JULY 2012

The plan to use an Android phone and IOIO board to log the solar data has been abandoned after repeated failures of the IOIO boards to run for more than 24 hours without crashing or resetting. It maybe that I have purchased...

IOIO Android I2C Light Levels using TSL2561 Logging Code

26 JUNE 2012

As part of the home solar PV and hot water project we are now using an IOIO board with an android tablet to process the sensor data and upload to our online reporting website. The code below is used to get the sensor data...

IOIO Android I2C Temperature Logging Code

26 JUNE 2012

As part of the home solar PV and hot water project we are now using an IOIO board with an android tablet to process the sensor data and upload to our online reporting website. The code below is used to get the sensor data...

Thermal Panel fitting

31 MAY 2012

After several problems with slate suppliers, the builder who is replacing the front roof was able to get nearly all the slates installed by yesterday and we then fitted the solar hot water panel frame and pipework onto the...

Arduino Solar Logging Installed

26 MAY 2012

Following from Arduino based Solar PV and Hot water monitoring and logging posts the various hardware and parts of the software have been installed into the PV control cupboard and the new logging hardware and software is...

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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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