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servo_send.py
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servo_send.py
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import serial
import subprocess
from time import sleep
def acquire_serial():
# look for /dev/ttyACM* devices
tty = subprocess.check_output("ls /dev/ttyACM* | head", shell=True, text=True)
# remove trailing whitespace
tty = tty.rstrip()
if tty == '':
raise Exception("Cannot acquire serial connection!")
ser = serial.Serial(tty, 9600)
# ser = open(tty, 'w')
print(f'Acquiring serial {tty}...')
sleep(3) # serial takes like 3 seconds to actually connect
ser.close()
ser = open(tty, 'w')
return ser
ser = acquire_serial()
def servo_send(pwm):
try:
# Open the serial port
# if not ser.isOpen():
# ser.open()
# pwm = int(input("Enter PWM Value: "))
bytes = ("S"+str(int(pwm))+"\n") # .encode()
ser.write(bytes)
print(f"Sent PWM value: {pwm}")
# ser.flush()
except Exception as e:
print(f"Error: {e}")
def beep_send(duration=100):
try:
# Open the serial port
# if not ser.isOpen():
# ser.open()
bytes = ("B" + str(int(duration)) + "\n") #.encode()
ser.write(bytes)
print(f"Sent Beep")
except Exception as e:
print(f"Error: {e}")