1'''
2AI - AI_N_samples_once.py with asynchronous mode.
3
4This example demonstrates the process of obtaining AI data in N-sample mode.
5Additionally, it gets AI data with points in once from WifiDAQE3AH.
6
7To begin with, it demonstrates the steps to open the AI and configure the AI parameters.
8Next, it outlines the procedure for reading the streaming AI data.
9Finally, it concludes by explaining how to close the AI.
10
11-------------------------------------------------------------------------------------
12Please change correct serial number or IP and port number BEFORE you run example code.
13
14For other examples please check:
15 https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
16See README.md file to get detailed usage of this example.
17
18Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
19'''
20
21## Python
22import asyncio
23
24## WPC
25
26from wpcsys import pywpc
27
28
29async def main():
30 ## Get Python driver version
31 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
32
33 ## Create device handle
34 dev = pywpc.WifiDAQE3AH()
35
36 ## Connect to device
37 try:
38 dev.connect("192.168.5.38") ## Depend on your device
39 except Exception as err:
40 pywpc.printGenericError(err)
41 ## Release device handle
42 dev.close()
43 return
44
45 try:
46 ## Parameters setting
47 port = 0 ## Depend on your device
48 mode = 1 ## 0 : On demand, 1 : N-samples, 2 : Continuous
49 channel = 8
50 sampling_rate = 1000
51 samples = 200
52 read_points = 200
53 read_delay = 0.5 ## second
54
55 ## Get firmware model & version
56 driver_info = await dev.Sys_getDriverInfo_async()
57 print("Model name: " + driver_info[0])
58 print("Firmware version: " + driver_info[-1])
59
60 ## Open AI
61 err = await dev.AI_open_async(port)
62 print(f"AI_open_async in port {port}, status: {err}")
63
64 ## Set AI acquisition mode to N-samples mode (1)
65 err = await dev.AI_setMode_async(port, mode)
66 print(f"AI_setMode_async {mode} in port {port}, status: {err}")
67
68 ## Set AI sampling rate
69 err = await dev.AI_setSamplingRate_async(port, sampling_rate)
70 print(f"AI_setSamplingRate_async {sampling_rate} in port {port}, status: {err}")
71
72 ## Set AI # of samples
73 err = await dev.AI_setNumSamples_async(port, samples)
74 print(f"AI_setNumSamples_async {samples} in port {port}, status: {err}")
75
76 ## Open AI streaming
77 err = await dev.AI_openStreaming_async(port)
78 print(f"AI_openStreaming_async in port {port}, status: {err}")
79
80 ## Start AI streaming
81 err = await dev.AI_startStreaming_async(port)
82 print(f"AI_startStreaming_async in port {port}, status: {err}")
83
84 ## Read AI
85 ai_2Dlist = await dev.AI_readStreaming_async(port, read_points, read_delay)
86 print(f"number of samples = {len(ai_2Dlist)}" )
87
88 ok = True
89 for i, ai_list in enumerate(ai_2Dlist):
90 ## Check for any missing data
91 if len(ai_list) != channel:
92 print(i, ai_list)
93 ok = False
94 if ok:
95 print('OK')
96 else:
97 print('NG')
98
99 ## Close AI streaming
100 err = await dev.AI_closeStreaming_async(port)
101 print(f"AI_closeStreaming_async in port {port}, status: {err}")
102
103 ## Close AI
104 err = await dev.AI_close_async(port)
105 print(f"AI_close_async in port {port}, status: {err}")
106 except Exception as err:
107 pywpc.printGenericError(err)
108
109 ## Disconnect device
110 dev.disconnect()
111
112 ## Release device handle
113 dev.close()
114
115 return
116
117def main_for_spyder(*args):
118 if asyncio.get_event_loop().is_running():
119 return asyncio.create_task(main(*args)).result()
120 else:
121 return asyncio.run(main(*args))
122if __name__ == '__main__':
123 asyncio.run(main()) ## Use terminal
124 # await main() ## Use Jupyter or IPython(>=7.0)
125 # main_for_spyder() ## Use Spyder