DO write pins

 1'''
 2DIO - DO_write_pins.py with synchronous mode.
 3
 4This example illustrates the process of writing a high or low signal to a DO pin from STEM.
 5
 6To begin with, it demonstrates the steps required to open the DO pin.
 7Next, voltage output is written to the DO pin.
 8Lastly, it concludes by closing the DO pin.
 9
10If your product is "STEM", please invoke the function `Sys_setDIOMode`.
11
12The DIO ports 0 to 1 are assigned to slot 1, while ports 2 to 3 are assigned to slot 2.
13---------------------------
14|  Slot 1    port 1 & 0   |
15|  Slot 2    port 3 & 2   |
16|  Slot 3    port 5 & 4   |
17|  Slot 4    port 7 & 6   |
18---------------------------
19
20-------------------------------------------------------------------------------------
21Please change correct serial number or IP and port number BEFORE you run example code.
22
23For other examples please check:
24    https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
25See README.md file to get detailed usage of this example.
26
27Copyright (c) 2022-2025 WPC Systems Ltd. All rights reserved.
28'''
29
30## WPC
31from wpcsys import pywpc
32
33## Python
34import time
35
36
37def main():
38    ## Get Python driver version
39    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
40
41    ## Create device handle
42    dev = pywpc.STEM()
43
44    ## Connect to device
45    try:
46        dev.connect("192.168.1.110")  ## Depend on your device
47    except Exception as err:
48        pywpc.printGenericError(err)
49        ## Release device handle
50        dev.close()
51        return
52
53    try:
54        ## Parameters setting
55        port = 0  ## Depend on your device
56        pin_index = [0, 1, 2, 3]
57        DO_value = [1, 0, 1, 0]
58        timeout = 3  ## [sec]
59
60        ## Get firmware model & version
61        driver_info = dev.Sys_getDriverInfo(timeout)
62        print(f"Model name: {driver_info[0]}, Firmware version: {driver_info[-1]} ")
63
64        ## Open pins with digital output
65        err = dev.DO_openPins(port, pin_index, timeout)
66        print(f"DO_openPins in port {port}, status: {err}")
67
68        ## Write pins to high or low
69        err = dev.DO_writePins(port, pin_index, DO_value, timeout)
70        print(f"DO_writePins in port {port}, status: {err}")
71
72        ## Wait for seconds to see led status
73        time.sleep(3)  ## delay [sec]
74
75        ## Close pins with digital output
76        err = dev.DO_closePins(port, pin_index, timeout)
77        print(f"DO_closePins in port {port}, status: {err}")
78    except Exception as err:
79        pywpc.printGenericError(err)
80
81    finally:
82        ## Disconnect device
83        dev.disconnect()
84
85        ## Release device handle
86        dev.close()
87
88
89if __name__ == '__main__':
90    main()