Week 5: Finish All

Group meeting

In the week 5 meeting of our group, the following points have been discussed about:

• Summary the job done in week 4.

• How to add the comparator into IR system in other way.

• How multiple Raspberry Pi communicate with each other in other way.

• How to do the calculation to transfer distortion into spoke rotation round.
  

Lab Day

IR system

• Try to add the comparator into IR system for the last time. However, we still failed, the circuit and the layout of LM393 had been checked several times, but it still did not work. In this way, this additional improvement could not be finished.
  

Data Receive and Distortion Calculation

• With the help of professor Smith, we gave up the minicom to realise the serial communication with Putty instead. Two Raspberry Pi in visual system group use the ttyUSB0 to communicate, while our group use TTL to TTL cable and TTL to USB cable to communicate with their group. The RX,TX and Ground were applied in this condition. Moreover, the calculation had been done for the buckled wheel distortion.

• To transfer the data, the data can not be transferred directly. The data can only be transfer in the "char" format, so we need to change our "int" into string then to be the "char". After receiving the "char", we need to change the string into "int".

Overall 3D Print

• To support the whole system, the 3D print had been done for the Stepper Motor Driver part and the IR system. A additional hold case also had been printed to support the whole circuit and the Raspberry Pi.

Problems,Issues and Concerns

• There are still some problem when we transfer the data.

• The comparator cannot work while added a vary resistor.

• The raspberry pi data can not communicate with each other sometime.

Plan for next week

• Make the poster for bench day.

• Prepare the presentation for the bench day.

• Test the whole project and make some record of the result.