Etymology:
photo_resistor
n.
A device that takes a photo from a photo-resistor, hence the name, photo_resistor.
(100 points for the truly ingenious name!)
A mono-pixel camera built using a single photo-resistor, two servos and an Arduino Uno.
Of course, the output is hardly photogenic. Here's a sample:
Read my blog-post describing the build-process here: http://life.inspirho.in/diy/photo-resistor/
First of all, you need to get the circuit set up. I have used a nano, but you could use any other compatible controller. I am too lazy to create a schematic diagram of the connections, so I will just list the pins-to-device mapping.
Photoresistor: A0
HC05 TX: 5
HC05 RX: 4
Servo X: 9
Servo Y: 10
Secondly, the main python script to run is process.py. Before you run the script do note that you need to identify the bluetooth device from you serial devices list which can be found by ll /dev/tty.* (could be different for you) and update this value in process.py.
Note that I have tried this on MacOS Mojave, but it should work just fine on any Mac or Linux as long as you can identify the serial device correctly.
- Numpy
- Matplotlib