Input Devices

Assignment: measure something: add a sensor to a microcontroller board and read it

For this assignment, I learned

 a)how to add a sensor and read the value from it (how to interpret values from the sensor)
 b)how to program microcontrollers (how to choose microcontrollers)

[3D print Redo]

I redid 3D print, scaling up my rinds.

[Light sensor]

I decided to test a light sensor that might be used for my final project.
Milling board and stuffing went well.

I tested hello.light.45.c and it showed values.
Next, tried hello.light.45.py installing pyserial.

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make -f hello.light.45.make

make -f hello.light.45.make program-usbtiny

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hello.light.45.py (COM port #) e.g. hello.light.45.py COM25

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The first trial did not show any change of sensor output even though we cover the sensor.
I misunderstood the orientation of phototransistor (green was collector), but
after fixing it, my board worked well.

After that, I started thinking about my final project.
Which sensor I should use and which board with which microcontroller I should make.
I read datasheet of Attiny 44, 45 and Mega168.
I decided to make fabduino board and milled it, but the endmill was dull and milled out
thin lines. I will redo it next week.