How to use plotink - 10 common examples

def queryVoltage(port_name):
    # Query the EBB motor power supply input voltage.
    if port_name is not None:
        version_status = ebb_serial.min_version(port_name,"2.2.3")
        if not version_status:
            return True # Unable to read version, or version is below 2.2.3.
                        # In these cases, issue no voltage warning.
        else:
            raw_string = (ebb_serial.query(port_name, 'QC\r'))
            split_string = raw_string.split(",", 1)
            split_len = len(split_string)
            if split_len > 1:
                voltage_value = int(split_string[1])  # Pick second value only
            else:
                return True  # We haven't received a reasonable voltage string response.
                # Ignore voltage test and return.
            # Typical reading is about 300, for 9 V input.
            if voltage_value < 250:
                return False
    return True

def queryVoltage(port_name):
    # Query the EBB motor power supply input voltage.
    if port_name is not None:
        version_status = ebb_serial.min_version(port_name,"2.2.3")
        if not version_status:
            return True # Unable to read version, or version is below 2.2.3.
                        # In these cases, issue no voltage warning.
        else:
            raw_string = (ebb_serial.query(port_name, 'QC\r'))
            split_string = raw_string.split(",", 1)
            split_len = len(split_string)
            if split_len > 1:
                voltage_value = int(split_string[1])  # Pick second value only
            else:
                return True  # We haven't received a reasonable voltage string response.
                # Ignore voltage test and return.
            # Typical reading is about 300, for 9 V input.
            if voltage_value < 250:
                return False
    return True

# servo power immediately, respectively.
    #
    # This feature requires EBB hardware v 2.5.0 and firmware 2.6.0
    #
    # Reference: http://evil-mad.github.io/EggBot/ebb.html#SR
    #
    if port_name is not None:
        version_status = ebb_serial.min_version(port_name,"2.6.0")
        if not version_status:
            return      # Unable to read version, or version is below 2.6.0.
        else:
            if state is None:
                str_output = 'SR,{0}\r'.format(timeout_ms)
            else:
                str_output = 'SR,{0},{1}\r'.format(timeout_ms, state)
            ebb_serial.command(port_name, str_output)

def setPenUpRate(port_name, pen_up_rate):
    if port_name is not None:
        ebb_serial.command(port_name, 'SC,11,{0}\r'.format(pen_up_rate))
        # Set the rate of change of the servo when going up.

def setEBBLV(port_name, ebb_lv):
    # Set the EBB "Layer" Variable, an 8-bit number we can read and write.
    # (Unrelated to our plot layers; name is an historical artifact.)
    if port_name is not None:
        ebb_serial.command(port_name, 'SL,{0}\r'.format(ebb_lv))

def setPenDownRate(port_name, pen_down_rate):
    if port_name is not None:
        ebb_serial.command(port_name, 'SC,12,{0}\r'.format(pen_down_rate))
        # Set the rate of change of the servo when going down.

def setPenUpPos(port_name, servo_min):
    if port_name is not None:
        ebb_serial.command(port_name, 'SC,4,{0}\r'.format(servo_min))
        # servo_min may be in the range 1 to 65535, in units of 83 ns intervals. This sets the "Pen Up" position.

def PBOutValue(port_name, pin, state):
    # Set state of the I/O pin. Pin: {0,1,2, or 3}. State: {0 or 1}.
    # Set the pin as an output with OutputPinBConfigure before using this.
    if port_name is not None:
        str_output = 'PO,B,{0},{1}\r'.format(pin, state)
        ebb_serial.command(port_name, str_output)

def TogglePen(port_name):
    if port_name is not None:
        ebb_serial.command(port_name, 'TP\r')

def doABMove(port_name, delta_a, delta_b, duration):
    # Issue command to move A/B axes as: "XM,,,"
    # Then,  moves by  + , and  as  - 
    if port_name is not None:
        str_output = 'XM,{0},{1},{2}\r'.format(duration, delta_a, delta_b)
        ebb_serial.command(port_name, str_output)