Push button to run motors?

• ev3dev version: PASTE THE OUTPUT OF uname -r HERE
• ev3dev-lang-python version: INSERT ALL VERSIONS GIVEN BY dpkg-query -l python3-ev3dev* HERE

when I run this program it doesnt quite do what I want. I mostly just want it to run the motor when I push the touch sensor. This is the program I’m running.

#!/usr/bin/env python3
from ev3dev.brickpi3 import *

from ev3dev2.motor import LargeMotor, OUTPUT_A, OUTPUT_B, SpeedPercent, MoveTank
from ev3dev2.sensor import INPUT_1
from ev3dev2.sensor.lego import TouchSensor
from ev3dev2.led import Leds

ts = TouchSensor(INPUT_1)
m = LargeMotor(OUTPUT_B)

while True:
    if ts.value() == 0:
      m.stop(stop_action="brake")
    else:
      m.run_forever(speed_sp=180)   # equivalent to power=20 in EV3-G

When I run the program it just turns the motor but when I unplug the touch sensor the motor stops. I guess I still haven’t been able to find a way to simply touch the touch sensor and have it turn the motor.

[dwalton76]

It seems like it would run as long as you are holding down the touch sensor. Add a “break” after the run_forever() call so that you drop out of that while True loop.

[happyFox1982]

try this code, and find the differences:

     import ev3dev.ev3 as ev3
     import time

     print('I am ready!')

      l = ev3.LargeMotor('outA')
      r = ev3.LargeMotor('outD')
      ts = ev3.TouchSensor()

       while ts.is_pressed==False :
        continue

       ev3.Sound.speak('I shall run!').wait()

       l.run_timed(time_sp=3000, speed_sp=700)
       r.run_timed(time_sp=4000, speed_sp=700)