From Earlham Cluster Department

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Gear to record video of the pedestrian crossing and the speed of Eastbound traffic in front of Earlham on National Road West.



Current wifi card

Current battery and charge controller

Possible technologies


Image volume calculation

Software architecture:

Questions for Doug


Written By: Maduna (madunnh)


Main Hardware

Model: 1510 Pelican Case

The case houses most of the hardware of the unit. It contains the battery, power supply, charge controller, router and the single board computer. The components of the case were carefully attached using materials such as velrco, wire-ties and bolts and nuts. The case was initially used for another project (Keck Water Monitoring Project), so some of the components i.e. the battery and charge controller were already installed. The posision of the charge controller was changed to a 'vertical mount' in order to make room for a secondary battery (if required) and to bring it closer to the power supply unit.

Model: EP2812 B.B. Battery

The battery is a 12V, 12Ah Lead-Acid rechargeable battery. It was chosen for its dimensions, capacity, operation temperature range and independent operational orientation (charges and discharges in any position). Even though the battery was not specially chosen for this project, its capacity was calculated to be sufficient for this project's hardware.

Model: Phocos CML10-2

This is a 10A, 12/24V charge controller specially chosen for its compatibility with the battery and ability to charge the battery using a solar panel. Due to the high power demand of the components and the significance this project, solar power was tested to be unreliable, especially at the deployment site where there are a lot of tall trees. Instead of a solar panel, a power supply was used.


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