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  • Author Author: ipv1
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[Firecracker Analyzer] [week 1] System Design and ReDesign

ipv1

I had already proposed a design but it was a bit rough and after talking to some sensor vendors, I found that not only are gas sensors expensive but most of them might not be suitable for outdoor use at all. Hence I have cut down on the sensors and added expansion connectors in my design for later use. The current design is shown in the figure below.

image

It has been a slow week due to personal reasons but I have come up with the above diagram and there are a few pieces still missing which I will add once information comes together.

 

Description

 

The system has three main parts. The first is the Field Sensor Node which is where a lot of the work is focused. It uses the 'compulsory parts' and I have received samples via Dr. Defeo. They are SMALL! The objective here is to create a booster pack for power management and an expansion board for the sensors. I will spend the next week working on board layout and will try and send that to manufacturing ASAP. This node talks to my second module which is the Beagle Bone Black over the CC110L which is a 433MHz based module and I am hoping to test out its range and performance. The BBB will have the CC1101 module which is a bit more feature rich and will itself talk to the Sierra Wireless Cloud. I have successfully tested the Sierra Air Vantage platform and will try to do a writeup next week.

 

The third module is the CC3200 based Table Top Sensor. I have used a Fuel Booster Pack from a previous roadtest and it seems with a little modification I can charge it up using a solar panel directly! More details will come soon. A small addon board here again for the sensors and the data is directly logged to Sierra Wireless. I have tested connectivity from the CC3200 to the Sierra Wireless platform and works like a breeze. The documentation is a bit slow on my part because I was unclear as to the usefulness of some things.

 

I am running some experiments on the CC3200 boards and will start writing more detailed posts when I am done.

 

More later.

 

Cheers,

IP

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