1'''
2AIO - AIO_one_channel_loopback.py with asynchronous mode.
3
4This example demonstrates the process of AIO loopback with specific channels of WifiDAQE3AOD.
5It involves using AO pins to send signals and AI pins to receive signals on a single device, commonly referred to as "loopback".
6The AI and AO pins are connected using a wire.
7
8Initially, the example demonstrates the steps required to open the AI and AO.
9Next, it reads AI data and displays its corresponding values.
10Following that, it writes digital signals to the AO pins and reads AI on-demand data once again.
11Lastly, it closes the AO and AI ports.
12
13-------------------------------------------------------------------------------------
14Please change correct serial number or IP and port number BEFORE you run example code.
15
16For other examples please check:
17 https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
18See README.md file to get detailed usage of this example.
19
20Copyright (c) 2022-2025 WPC Systems Ltd. All rights reserved.
21'''
22
23## WPC
24from wpcsys import pywpc
25
26## Python
27import asyncio
28import sys
29sys.path.insert(0, 'src/')
30
31
32async def main():
33 ## Get Python driver version
34 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
35
36 ## Create device handle
37 dev = pywpc.WifiDAQE3AOD()
38
39 ## Connect to device
40 try:
41 dev.connect("192.168.5.38") ## Depend on your device
42 except Exception as err:
43 pywpc.printGenericError(err)
44 ## Release device handle
45 dev.close()
46 return
47
48 try:
49 ## Parameters setting
50 port = 0 ## Depend on your device
51 ao_value_list = [0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5]
52
53
54 ## Get firmware model & version
55 driver_info = await dev.Sys_getDriverInfo_async()
56 print(f"Model name: {driver_info[0]}, Firmware version: {driver_info[-1]} ")
57
58 ## Open AI
59 err = await dev.AI_open_async(port)
60 print(f"AI_open_async in port {port}, status: {err}")
61
62
63 ## Open AO
64 err = await dev.AO_open_async(port)
65 print(f"AO_open_async in port {port}, status: {err}")
66
67 ## Read data acquisition
68 ai_list = await dev.AI_readOnDemand_async(port)
69 print(f"AI data in port {port}: {ai_list}")
70
71 ## Write AO vaule in channel 0
72 err = await dev.AO_writeOneChannel_async(port, 0, ao_value_list[0])
73 print(f"In port {port} channel 0, the AO value is {ao_value_list[0]}, status: {err}")
74
75 ## Write AO vaule in channel 1
76 err = await dev.AO_writeOneChannel_async(port, 1, ao_value_list[1])
77 print(f"In port {port} channel 1, the AO value is {ao_value_list[1]}, status: {err}")
78
79 ## Write AO vaule in channel 2
80 err = await dev.AO_writeOneChannel_async(port, 2, ao_value_list[2])
81 print(f"In port {port} channel 2, the AO value is {ao_value_list[2]}, status: {err}")
82
83 ## Write AO vaule in channel 3
84 err = await dev.AO_writeOneChannel_async(port, 3, ao_value_list[3])
85 print(f"In port {port} channel 3, the AO value is {ao_value_list[3]}, status: {err}")
86
87 ## Read data acquisition
88 ai_list = await dev.AI_readOnDemand_async(port)
89 print(f"AI data in port {port}: {ai_list}")
90
91 ## Close AI
92 err = await dev.AI_close_async(port)
93 print(f"AI_close_async in port {port}, status: {err}")
94
95 ## Close AO
96 err = await dev.AO_close_async(port)
97 print(f"AO_close_async in port {port}, status: {err}")
98 except Exception as err:
99 pywpc.printGenericError(err)
100
101 finally:
102 ## Disconnect device
103 dev.disconnect()
104
105 ## Release device handle
106 dev.close()
107
108
109def main_for_spyder(*args):
110 if asyncio.get_event_loop().is_running():
111 return asyncio.create_task(main(*args)).result()
112 else:
113 return asyncio.run(main(*args))
114
115
116if __name__ == '__main__':
117 asyncio.run(main()) ## Use terminal
118 # await main() ## Use Jupyter or IPython(>=7.0)
119 # main_for_spyder() ## Use Spyder