DPOT write by channel

 1'''
 2DPOT - DPOT_writeByChannel.py with asynchronous mode.
 3
 4This example demonstrates how to write digital potentiometer resistance to the specefic channel from EthanP.
 5-------------------------------------------------------------------------------------
 6Please change correct serial number or IP and port number BEFORE you run example code.
 7
 8For other examples please check:
 9    https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
10See README.md file to get detailed usage of this example.
11
12Copyright (c) 2022-2025 WPC Systems Ltd. All rights reserved.
13'''
14
15## WPC
16from wpcsys import pywpc
17
18
19def main():
20    ## Get Python driver version
21    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
22
23    ## Create device handle
24    dev = pywpc.EthanP()
25
26    ## Connect to device
27    try:
28        dev.connect("192.168.1.110")  ## Depend on your device
29    except Exception as err:
30        pywpc.printGenericError(err)
31        ## Release device handle
32        dev.close()
33        return
34
35    try:
36        ## Parameters setting
37        port = 0  ## Depend on your device
38        channel = 0
39        resistance_ratio = 0.5
40        timeout = 3  ## [sec]
41
42        ## Get firmware model & version
43        driver_info = dev.Sys_getDriverInfo(timeout)
44        print(f"Model name: {driver_info[0]}, Firmware version: {driver_info[-1]} ")
45
46        ## Open DPOT
47        err = dev.DPOT_open(port, timeout)
48        print(f"DPOT_open in port {port}, status: {err}")
49
50        ## Write on the channel
51        err = dev.DPOT_writeByChannel(port, channel, resistance_ratio, timeout)
52        print(f"DPOT_writeByChannel in port {port} channel {channel}, status: {err}")
53
54        ## Close DPOT
55        err = dev.DPOT_close(port, timeout)
56        print(f"DPOT_close in port {port}, status: {err}")
57    except Exception as err:
58        pywpc.printGenericError(err)
59
60    finally:
61        ## Disconnect device
62        dev.disconnect()
63
64        ## Release device handle
65        dev.close()
66
67
68if __name__ == '__main__':
69    main()