Week Two:
On reflection over the week the ideal prototyping platform
for development of this project would be the Arduino as it is easily configured
and the software is familiar as it is very like the C programming language, the
Atmel micro controller could then be incorporated into the PCB design for the
finished product.
In lab further research was sought for efficiencies and
studies as to the drop off in efficiencies at different angles to the sun
however little could be found on the nets about it that was freely published.
The Light spectrum was investigated. Ideas about setting a
calendar and a position tracker in software to track its position were
investigated. However for the moment a simple zero position switch can be
implemented and this can be used to position the tracker to the east for the
next day.
A sensor is needed to analyze the sky either by comparison using light dependant resistors or by perhaps infra red sensors further investigation is needed for the
method.
The motor also will have to be discussed as one has to
rotate more than 180 degrees and the other maximum of 90 so a stepper and a
servo might be ideal also the servo could be useful for a feedback software
update in a future development for better sensitivity or even develop a
software readout of position (the latter is not initially going to be used).
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