Folkestonomy


Putting it all together

It's neater than it looks, honest guv.
It's neater than it looks, honest guv.

After a long block soldering, unsolder, re-soldering, I've finally managed to get all of the data collector box together, and this is what it looks like before it's boxed up. I've soldered the extra components and controllers onto an Arduino 'ProtoShield'. I made a few silly mistakes, but they were easily fixed.

The protoshield means I can easily replace the various components if there is a failure, especially as the cables are all attached via screw down terminal blocks. The code for the Arduino board is pretty much complete, but I want to do some thorough testing before I finally load it onto the microcontroller without the Arduino Bootloader.


Another Prototype

Fortunately you can't see my bad soldering...
Fortunately you can't see my bad soldering...

i've been playing around building the next prototype for capturing the data from the network. I started playing with the 1 wire libraries that are available for the Arduino, but wasn't getting very far with them, and I'm still somewhat wary of the bit banging approach this takes. If my electronics/physics wasn't quite so rusty I may be more confident.

To that end I've taken on board a different challenging task. I soldered one of the very small surface mount packaged DS2482-100 that Maxim sent me as a sample onto a mounting board from eP board. The soldering is not a task for the feint hearted, and I hope it works. The trouble is that I'm not sure whether it's my dodgy soldering, or something else, which is preventing me from talking to the chip.

I guess I'll just have to carry on getting my head round the [url=http://en.wikipedia.org/wiki/I²C
I²C and one-wire protocols, in the hope that I can be sure it's one thing. An interesting and challenging task.

The reason I've opted for this route is that I can use the Arduino to control start/stop signals, light a status LED, and collect and send data to our MacBook. Finally I intend to swap out the DS2482-100 for a DS2482-800 in the final build to allow up to 8 one-wire networks, for better contextualising the data we gather.


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