Interrupt for-loop on Raspberry Pi

Anvil Q&A
11

Hi David,

I understand your confussion: there are 2 application talking to eachother:
ANVIL --> Raspberry Pi (Microcontroller). With the Raspberry Pi, I’ll control a stepper motor!

This is the code from the Raspberry Pi:

#Running a NEMA17 stepper motor with a TB6600 driver

import RPi.GPIO as GPIO
import time
import anvil.server
#from anvil.tables import app_tables

GPIO.setmode(GPIO.BOARD) #read the pin as board instead of BCM pin

anvil.server.connect("XXXXX")

DIR = 33 # Direction of the stepper motor
PUL = 35 # Pulses send to the stepper motor
ENA = 36 # ON/OFF stepper motor


GPIO.setwarnings(False)
GPIO.setup(DIR, GPIO.OUT)
GPIO.setup(PUL, GPIO.OUT)
GPIO.setup(ENA, GPIO.OUT)

steps = 1000
statusRasp = False

GPIO.output(ENA, True) 
    
@anvil.server.callable
def motor_aan_cb(direction,speed,motor_aan_cb):
    direction_Rasp = direction
    speed_Rasp = speed
    cb_status_motor = motor_aan_cb
    
    print("Speed of motor:",speed)
    print("Direction of motor: ",direction)
    print("Status of motor: ",cb_status_motor)
    
    if cb_status_motor == True:
        for x in range(steps):
            GPIO.output(ENA, False) 
            GPIO.output(DIR, direction_Rasp)
            GPIO.output(PUL, 1)
            time.sleep(speed_Rasp)
            GPIO.output(PUL, 0)
            time.sleep(speed_Rasp)
            statusRasp = anvil.server.call('get_motor_status',status)
            print("StatusRasp:",statusRasp)
            if statusRasp == False:
                break
    else:
        print('Wait on cb_status_motor to become 1')
        GPIO.output(ENA, True)

anvil.server.wait_forever()