Raspberry Pi solar data logger after one year

Raspberry Pi solar data logger after one year

Posted Thursday 06 June 2013 22:43 Page View Counter 40

It has now been just over 12 months since we installed our Raspberry Pi solar data logger system on the house and it has been uploading temperature readings, battery voltage and current readings every minute, 24 hours a day, 7 days a week. The huge...

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Solar Air Removal Upgrade SpiroVent RV2

Solar Air Removal Upgrade SpiroVent RV2

Posted Friday 31 May 2013 23:07 Page View Counter 30

Our solar thermal hot water system has now been installed for 12 months and has given a good saving on our annual gas bills with the summer gas usage being almost 80% lower than previous years. A recurring problem with the solar system is a buildup of...

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Low Voltage Cut off using MAX8212

Low Voltage Cut off using MAX8212

Posted Sunday 10 February 2013 10:53 Page View Counter 64

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 dropped to a very low level...

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RF Shielding on a Mains Inverter

RF Shielding on a Mains Inverter

Posted Wednesday 19 September 2012 14:24 Page View Counter 42

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 mains output and also on the...

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Raspberry Pi Solar Data Logger

Raspberry Pi Solar Data Logger

Posted Tuesday 24 July 2012 15:25 Page View Counter 342

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 and also on...

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Raspberry Pi Fan Controller and Interface

Raspberry Pi Fan Controller and Interface

Posted Friday 20 July 2012 20:42 Page View Counter 68

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 controlled fan with...

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Raspberry Pi I2C  Analog to Digital Converter

Raspberry Pi I2C Analog to Digital Converter

Posted Wednesday 11 July 2012 23:24 Page View Counter 46

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 are around £5 each I found...

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Raspberry Pi I2C Microchip MCP9800123 Temperature Sensor

Raspberry Pi I2C Microchip MCP9800123 Temperature Sensor

Posted Friday 06 July 2012 14:50 Page View Counter 56

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 2 faulty boards, phone issues...

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IOIO Android I2C Light Levels using TSL2561 Logging Code

IOIO Android I2C Light Levels using TSL2561 Logging Code

Posted Tuesday 26 June 2012 23:07 Page View Counter 34

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 from the TSL2561 digital luminosity...

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IOIO Android I2C Temperature Logging Code

IOIO Android I2C Temperature Logging Code

Posted Tuesday 26 June 2012 22:58 Page View Counter 37

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 from the Microchip MCP9800/1/2/3...

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