distance_sensor_midi.py

gistfile1.txt

import time
import rtmidi
from gpiozero import DistanceSensor  # Import the GPIO Zero Library

# Define GPIO pins to use on the Pi
pinTrigger = 17
pinEcho = 18

midiout = rtmidi.MidiOut()
available_ports = midiout.get_ports()

if available_ports:
    midiout.open_port(1)
else:
    midiout.open_virtual_port("My virtual output")

with midiout:
    note_on = [0x90, 60, 112] # channel 1, middle C, velocity 112
    note_off = [0x80, 60, 0]
    midiout.send_message(note_on)
    time.sleep(0.5)
    midiout.send_message(note_off)
    time.sleep(0.1)

sensor = DistanceSensor(echo=pinEcho, trigger=pinTrigger)

last_distance = 0

try:
    # Repeat the next indented block forever
    while True:
        print("Distance: %.1f cm" % sensor.distance * 1000)
        time.sleep(0.5)

# If you press CTRL+C, cleanup and stop
except KeyboardInterrupt:
    del midiout
    print("Exiting")