Introducing max1284

Introducing max1284

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p>With the arrival of prototype PCB’s it’s time to introduce the max1284 internet gateway.
Using the an atmega1284p, and wiznet 5200 based ethernet modules, the max1284 represents a cost effective arduino comp…

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ethernet52

ethernet52

So what is ethernet52, it’s an arduino library developed for the Wiznet5200 chip, successor to the popular w5100 chip used extensively on arduino ethernet shields.
Available here https://bitbucket.org/homehack/ethernet52/src
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RaspberryPi the Arduino Development Tool

RaspberryPi the Arduino Development Tool

Not really too much to say here. There has been much talk on the forums about using arduino and similar systems to provide additional IO capabilities for the RaspberryPi.
So I decided to take things a little further and discover whats needed to use the…

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i2c connected 1-wire masters

i2c connected 1-wire masters

OWFS the 1-Wire filesystem allows the use of i2c connected bus masters.
RaspberryPi conveniently provide i2c connectivity. However non of the images supplied provide i2c drivers. Fortunately at this point the community with its diverse range of membe…

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RaspberryPi @Homelabs 2012-04-18 19:38:11

RaspberryPi @Homelabs 2012-04-18 19:38:11

Well there you have it. The output from owhttp running on RaspberryPI using a USB DS9490 1-wire bus master.

pi@raspberrypi:~$ /opt/owfs/bin/owdir /28.52DE99000000
/28.52DE99000000/address
/28.52DE99000000/alias
/28.52DE99000000/crc8
/28.52DE99000000…

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The adventure begins.

The adventure begins.

So following the delivery of our first raspberry pi from RS, unboxed, and using the debian “squeeze” image it was time to see what works out of the box.
Here’s the obligatory output from /proc/cpuinfo
pi@raspberrypi:~$ cat /proc/cpuin…

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Wireless Connectivity

Wireless Connectivity

When you begin to think about designing a wireless sensor, you become aware that there is more than one way to provide the wireless connectivity.
Some of the options are show above, working left to right, RFM12B, XRF, XBee series 2, XBee SMT.
If you&#…

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RaspberryPi 1-Wire Expansion

RaspberryPi 1-Wire Expansion

You can’t have failed to notice the buzz around the upcoming RaspberryPi.
Both it’s price £25 for Model B (with ethernet connectivity) and size make it ideally suited to home automation, of particular interest is the expansion header that …

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Moving to Arduino 1.0

Moving to Arduino 1.0

Arduino released Arduino1 RC1 on Sept 17th.
A summary of changes is included here http://code.google.com/p/arduino/wiki/Arduino1
Some of these changes have caused Third Party libraries to break. We encountered just such a problem with the ethernet lib…

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Battery Configurations

Battery Configurations

The image above shows different battery configurations for the Xbee Temperature sensor.
The sensor has been designed to allow battery configurations using, 1.2v, 1.5v, and 3.6v batteries allowing the use of rechargeable, alkaline, and thionyl-chlori…

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