Arch Linux Iomega IConnect

I got an iConnect a few years ago. 1 Ghz processor, 256 MB RAM, Gigabit Ethernet, Wireless Card, 4 USB Ports (3 Usable).

Quite a good machine to run embedded Linux on. I had it running various services such as OWFS 1-Wire, XRF Wireless from Ciseco and other testing projects.

Anyway, one day I was tinkering and I broke it. It had to do with the bloody Arch Linux updates and Kernel modules. It was in a heap and was useless. I was busy being distracted by other projects, so the iConnect was put offline and joined the grave yard of stalled/unfinished projects.

One day, recently, I talked to Dr Google about hacking the iConnect.

I came across a couple of interesting links dealing with installing Debian on the iConnect.

http://scriptkiller.de/en/a54/computer_electronics/hacking_the_iomega_iconnect/

http://www.kroonen.eu/wiki/Debian%20iConnect

Really excellent links. You should have a read if you are interested in this type of stuff.

The link that was really the money shot was

http://pawelwozniak.info/index.php/embedded-linux/iconnect/126-install-archarm-linux-on-iconnect

It contains all the information required to install Arch Linux on the iConnect.

I used the Sarkfun FTDI Basic Breakout - 5V which I got from Cool Components to gain console access. I modified it to use 3.3V rather then the hotter 5V. Perfect.

The final update is to set the arcNumber from 1682 to 2870. This gives you access to the specific hardware in the iConnect, such as LEDS and the button.

They are located in:

/sys/class/leds

This is what you get:


iconnect:blue:otb -> ../../devices/platform/leds-gpio/leds/iconnect:blue:otb
iconnect:blue:power -> ../../devices/platform/leds-gpio/leds/iconnect:blue:power
iconnect:blue:usb1 -> ../../devices/platform/leds-gpio/leds/iconnect:blue:usb1
iconnect:blue:usb2 -> ../../devices/platform/leds-gpio/leds/iconnect:blue:usb2
iconnect:blue:usb3 -> ../../devices/platform/leds-gpio/leds/iconnect:blue:usb3
iconnect:blue:usb4 -> ../../devices/platform/leds-gpio/leds/iconnect:blue:usb4
iconnect:led_level -> ../../devices/platform/leds-gpio/leds/iconnect:led_level
iconnect:red:power -> ../../devices/platform/leds-gpio/leds/iconnect:red:power
rt2800pci-phy0::assoc -> ../../devices/pci0000:00/0000:00:01.0/leds/rt2800pci-phy0::assoc
rt2800pci-phy0::quality -> ../../devices/pci0000:00/0000:00:01.0/leds/rt2800pci-phy0::quality
rt2800pci-phy0::radio -> ../../devices/pci0000:00/0000:00:01.0/leds/rt2800pci-phy0::radio

http://archlinuxarm.org/forum/viewtopic.php?f=27&t=2612

Great work. Costs no money, so Woo Hoo!!

I plan to use to use it for Project Janus. It will use an iButton key fob or an RFID card to control some devices. There will also be other sensors in the loop for status updates, PIR and perhaps some audio component. Cool....

Raspberry PI Arduino Shield - Cheap Option

I have a project on the go which I call Project Doorman aka Carlton. It will involve a Raspberry PI, I2C connections controlling a 1-Wire controller which will be connected to a DS2408 switch. I will use an iButton ID keyfob and sensor i got from http://www.homechip.com a few years ago. So, keybob, open the door and Bob's your auntie.

I wanted to have as much of the electronics mounted on the RPI. I have a Slice of PI by ciseco.co.uk but the prototyping space is too small.

I was also looking at the Adafruit Prototyping Pi Plate Kit for Raspberry Pi but that would cost €20 landed. I was going use it, so all the fancy connectors etc., would end up not being used. Feck that, I said. I know the bits would be used on other projects. A penny saved is a penny to squander.

I read about a fella who was talking about using an Arduino Prototyping Shield on the RPI. That sparked an idea.

In my previous researching/playing with Arduinos, I got Budget Proto Shield (x3) from Oomlaut.com. I had one I hadn't used.

So I desoldered the headers, and soldered one on the other way.

Presto Chango, I had a Cheapo Raspberry PI Prototyping Shield/Plate

Here is the Protoshield attached.

it only uses a single line header, which provides access to the I2C pins (3 & 5). I also get 3.3V on pin 1. I will also need access to the 5V pin (2) and Ground pin (6). I probably will put a small header piece to accomodate this and solder some pieces of wire and connect it to the Shield. I don't care really, whatever works.

It is a nice size and definately has the real estate I need.

From the side. I used the space to have it fit on top of the other bits of hardware, in this case, the composite video connector. Everything has to be nice, after all.

Kist the header from different angles.

Here we have the major components that will be used for this project. The red guy is a Logic Level Converter I got from CoolComponents.co.uk. Very cheap and useful. It ensures that I only have 3.3V connecting to the RPI.

The next girl is the Dallas DS2482-800 the I2C 8 Channel 1-Wire Master Controller. I used the Tirna SMT SMD DIL adaptor SOIC 16 PIN NARROW  to mount the DS2482-800. Very Handy and fairly cheap.

The final good buddy is a Dallas  DS2408 a 8 Channel 1-Wire Adressable Switch. Very handy. Again I used the Tirna adapter.

That is about it. I will probably reorganise the layout to facilitate adding extra components. I might add a couple of light sensors, while I am at it.

So, what are the benefits? Cheap and Useful. I don't really need a prototyping board. It is going strainght into production.