Saturday 11 June 2016

Taking a better way off course.

I recently found out that my QEI (Quadrature Encoder Interface) codes were not correct. How can your brain help you stop from being hit by a street lamp if you are seeing it at the wrong place from its original place? Savvy? So we followed an advice from our mentor and sketched a module tree of our system and picked out the lower most branch of the module and start perfecting each module in the reverse hierarchy of their appearance. The scribbled rough diagram looks like this, I will try to fair it out ASAP and have my readers a look to it


I tried to vary frequency of QEI and looked if there is any redundancy in the readings and the fluctuations in the readings. While redundancy was not an issue, at 40Hz of QEI the readings fluctuated a lot. As the frequency was decreased the readings started to smoothen. This was observed and plotted on MATLAB and attached to the experiment's excel sheet which can be found here.

The next phase of the RPM calculator module will be proceeded with, tomorrow. Till then, ciao.

- Aniket

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