Raspberry Pi central heating controller

Raspberry Pi central heating controller

Posted Wednesday 08 August 2012 21:21 Page View Counter 75

Now the solar monitoring and logging system is working we are going to build the wireless remote control for the hot water and central heating boiler and controller/programmer. We currently have a variant of an ACL Drayton Lifestyle LP522 5DAY/ 2DAY...

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12v iPad Charger

12v iPad Charger

Posted Wednesday 01 August 2012 16:47 Page View Counter 87

Following the 4th Apple iPad charger failing and not wanting to spent even more money with Apple to replace them we decided to try to make 12v powered chargers to make use of the excess PV power we now have during the daytime to charge the iPads and other...

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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 Microchip MCP3428 ADC Reading

Raspberry Pi I2C Microchip MCP3428 ADC Reading

Posted Saturday 14 July 2012 15:01 Page View Counter 54

The code sample below shows how to read the ADC values from the MCP3428 16-Bit, Multi-Channel Analog-to-Digital Converter with I2C™ Interface and On-Board Reference by Microchip via I2C on the Raspberry Pi using Python. The code on this page...

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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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New Raspberry Pi I2C interface project

New Raspberry Pi I2C interface project

Posted Tuesday 10 July 2012 23:01 Page View Counter 29

Currently working on a new I/O board add-on for the Raspberry PI computer. The PCB will have 8 16bit A/D inputs which are connected via buffers to the I2C port on the Raspberry PI GPIO port.  There will also be a built in 5V power supply using a...

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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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