Python-Arduino [Alpha]

what's this??

This software will let you write programs on your computer (using Python) that interact with an Arduino Uno. For instance, you might press a button on the Arduino that opens a web browser, or hit a key macro. In the future, you will also be able to send data to the Arduino that could tell it to turn on a LED or start a motor.

This is a simple set of scripts for getting output from an Arduino to act is input for Python. Currently this only supports reading analog input. Support for Output is planned, but not available at this time.

how to use?

• Install python3
• Install pyserial (Use PIP)
• Upload mionitor.ino to the Arduino.
• Adjust monitor.py to include your COM location as the COM variable (ie COM3 or /dev/ttyACM0)
• Run with python monitor.py --monitor (You may have to run as root on linux)

what are these numbers?

1/0/1/1/0/0/277/0/0/0/0/0/

Above is an example of serial output to be read by Python.

D7 / D6 / D5 / D4 / D3 / D2 / A5 / A4 / A3 / A2 / A1 / A0 /

Above is a list of how the input is ordered.

valA[0] / valA[1] / valA[2] / valA[3] / valA[4] / valA[5] / valA[6] / valA[7] / valA[8] / valA[9] / valA[10] / valA[11] /

Above is a visualization of the valA array. This whole array is converted to a string called val5.

• The First 6 numbers in this sequence represent the digital input pins 7-2 (in reverse numerical order). So the first number is port 7, the second number is port 6 and so on. These are always 1 or 0; on or off.
• The final six parts of the sequence represent the values of analog pins 5-0 (in reverse numerical order). These will be a number between 0 and 1023.
• Values are converted to a string so they can be easily parsed. By refernceing valS[0] you would get the value of digital input pin 7. By referencing valS[7] you will get the value of analog input pin 4. NOTE: valS is not truley an array, but Python allows for strings to be referenced like arrays.

Monitor.ino could be a lot better by using a for loop inside of loop().

I'll be doing a lot more work on this script next time I need to work with Arduino.