1'''
2Tutorial - multiple_loops_async.py with asynchronous mode.
3
4This example project demonstrates how to use two async thread to get RTC & print string from USBDAQF1DSNK.
5
6-------------------------------------------------------------------------------------
7Please change correct serial number or IP and port number BEFORE you run example code.
8
9For other examples please check:
10 https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
11See README.md file to get detailed usage of this example.
12
13Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
14'''
15
16## Python
17import asyncio
18
19## WPC
20
21from wpcsys import pywpc
22
23async def readRTC_loop(handle, delay=1):
24 while True:
25 rtc = await handle.Sys_getRTC_async()
26 print(f"RTC Time: {rtc}")
27 await asyncio.sleep(delay) ## delay [s]
28
29async def printString_loop(handle, delay=1):
30 while True:
31 print("WPC Systems Ltd")
32 await asyncio.sleep(delay) ## delay [s]
33
34async def main():
35 ## Get Python driver version
36 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
37
38 ## Create device handle
39 dev = pywpc.USBDAQF1DSNK()
40
41 ## Connect to device
42 try:
43 dev.connect("default") ## Depend on your device
44 except Exception as err:
45 pywpc.printGenericError(err)
46 ## Release device handle
47 dev.close()
48 return
49
50 try:
51 ## Get firmware model & version
52 driver_info = await dev.Sys_getDriverInfo_async()
53 print("Model name: " + driver_info[0])
54 print("Firmware version: " + driver_info[-1])
55
56 await asyncio.gather(readRTC_loop(dev, delay=1), printString_loop(dev, delay=2)) ## delay (second)
57 except Exception as err:
58 pywpc.printGenericError(err)
59
60 ## This part never execute because the async thread.
61
62 ## Disconnect device
63 dev.disconnect()
64
65 ## Release device handle
66 dev.close()
67
68 return
69
70def main_for_spyder(*args):
71 if asyncio.get_event_loop().is_running():
72 return asyncio.create_task(main(*args)).result()
73 else:
74 return asyncio.run(main(*args))
75
76if __name__ == '__main__':
77 asyncio.run(main()) ## Use terminal
78 # await main() ## Use Jupyter or IPython(>=7.0)
79 # main_for_spyder() ## Use Spyder