Skip to content
Browse files

Merge pull request #241 from villares/master

Create arduino_input.pyde
  • Loading branch information
Jonathan Feinberg
Jonathan Feinberg committed Mar 16, 2017
2 parents e33f1c6 + 05abb73 commit f6f59dc45844b8ee40a8b7cb47ccd9ddbd026416
Showing with 72 additions and 0 deletions.
  1. +72 −0 mode/examples/Contributed Libraries in Python/Arduino-Firmata/arduino_input.pyde
@@ -0,0 +1,72 @@
Demonstrates the reading of digital and analog pins of an Arduino board
running the StandardFirmata firmware.
To use:
* Using the Arduino software, upload the StandardFirmata example (located
in Examples > Firmata > StandardFirmata) to your Arduino board.
* Run this sketch and look at the list of serial ports printed in the
message area below. Note the index of the port corresponding to your
Arduino board (the numbering starts at 0). (Unless your Arduino board
happens to be at index 0 in the list, the sketch probably won't work.
Stop it and proceed with the instructions.)
* Modify the "arduino = Arduino(...)" line below, changing the number
in Arduino.list()[0] to the number corresponding to the serial port of
your Arduino board. Alternatively, you can replace Arduino.list()[0]
with the name of the serial port, in double quotes, e.g. "COM5" on Windows
or "/dev/tty.usbmodem621" on Mac.
* Run this sketch. The squares show the values of the digital inputs (HIGH
pins are filled, LOW pins are not). The circles show the values of the
analog inputs (the bigger the circle, the higher the reading on the
corresponding analog input pin). The pins are laid out as if the Arduino
were held with the logo upright (i.e. pin 13 is at the upper left). Note
that the readings from unconnected pins will fluctuate randomly.
For more information, see:

add_library('serial') # replaces import processing.serial.*;
add_library('arduino') # replaces import cc.arduino.*;

off = color(4, 79, 111)
on = color(84, 145, 158)

def setup():
global arduino
size(470, 280)

# Prints out the available serial ports.

# Modify this line, by changing the "0" to the index of the serial
# port corresponding to your Arduino board (as it appears in the list
# printed by the line above).
arduino = Arduino(this, Arduino.list()[0], 57600)

# Alternatively, use the name of the serial port corresponding to your
# Arduino (in double-quotes), as in the following line.
# arduino = Arduino(this, "/dev/tty.usbmodem621", 57600)

# Set the Arduino digital pins as inputs.
for i in range(14): # for pins 0 to 13
arduino.pinMode(i, Arduino.INPUT)

def draw():

# Draw a filled box for each digital pin that's HIGH (5 volts).
for i in range(14): # from 0 to 13
if arduino.digitalRead(i) == Arduino.HIGH:
rect(420 - i * 30, 30, 20, 20)

# Draw a circle whose size corresponds to the value of an analog input.
for i in range(6): # for analog pins from A0 to A5
ellipse(280 + i * 30, 240, arduino.analogRead(i) / 16,
arduino.analogRead(i) / 16)

0 comments on commit f6f59dc

Please sign in to comment.
You can’t perform that action at this time.