Week 11 - Input Devices
Assignment
- Group assignment:
- Probe an input device’s analog levels and digital signals
- Individual assignment:
- Measure something: add a sensor to a microcontroller board that you have designed and read it
Individual Assignment:
I started this week by selecting an input device that could be used for my final project so i selected theÂ
LDR and Laser (Sensor )
In my final project, I am going to use LDR and laser as an input device (sensor ) to detect the marble each time the laser cut off, I modified in my pcb board to be suitable to use this module
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After connecting the LDR to your Arduino, you can check for the values coming from the LDR via the Arduino. To do this, connect the Arduino via USB to your PC and open up the Arduino IDE or software,the code read the LDR signles and takes actions according to the signal values
Step Response sensor,
On the Global Lecture, Adrian shared his experiment with Step Response. I learned a lot from it.Design and editing
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I started by downloading the pcb files and editing it to suit my board , I removed
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microcontroller and re-wiring the traces again
Fabrication, wiring and coding
I prepared the file to be milling pcb
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I had a problem with the first pcb, there were two traces connected to each and when i tried to fix this the trace has been removed from the board so i redesigned and refabricated it again
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Outcomes: The step response of a system in a given initial state consists of the time evolution of its outputs when its control inputs are Heaviside step functions. In electronic engineering and control theory, step response is the time behaviour of the outputs of a general system when its inputs change from zero to one in a very short time.
