ArduinoThermoControlWeb/simThermoControl.py at master · fretchen/ArduinoThermoControlWeb · GitHub

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import os, pty
import time
import numpy as np

def test_serial():
    setpoint  = 750;
    gain =1
    tauI = 100
    tauD = 1
    master, slave = pty.openpty()
    s_name = os.ttyname(slave)
    print(s_name)
    while True:
        meas = np.random.randint(700, 800)
        err = setpoint - meas;
        control = np.random.randint(10)
        mode = os.read(master, 1);
        if mode:
            print('mode {}'.format(mode))
            if mode == b'w':
                ard_str = str(setpoint) + ',' + str(meas) + ',' + str(err) + ',' + str(control)
                ard_str = ard_str + ',' + str(gain) + ',' + str(tauI) +',' + str(tauD) + '\r\n'
                out = ard_str.encode('windows-1252')
                os.write(master, out)
            if mode == b's':
                set = os.read(master, 20);
                setpoint = float(set.decode('windows-1252'));
                print('s{}'.format(setpoint));
            if mode == b'p':
                set = os.read(master, 20);
                gain = float(set.decode('windows-1252'));
                print('p{}'.format(gain));
            if mode == b'i':
                set = os.read(master, 20);
                tauI = float(set.decode('windows-1252'));
                print('i{}'.format(tauI));
            if mode == b'd':
                set = os.read(master, 20);
                tauD = float(set.decode('windows-1252'));
                print('d{}'.format(tauI));

        time.sleep(0.1)
if __name__=='__main__':
    test_serial()