DO blinky port

  1'''
  2DIO - DO_blinky_port.py with asynchronous mode.
  3
  4This example illustrates the process of writing a high or low signal to a DO port from STEM.
  5
  6To begin with, it demonstrates the steps required to open the DO port.
  7Next, in each loop, a different voltage output is applied, resulting in a blinking effect.
  8Lastly, it concludes by closing the DO port.
  9
 10If your product is "STEM", please invoke the function `Sys_setDIOMode_async`.
 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 asyncio
 35import sys
 36sys.path.insert(0, 'src/')
 37
 38
 39async def main():
 40    ## Get Python driver version
 41    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
 42
 43    ## Create device handle
 44    dev = pywpc.STEM()
 45
 46    ## Connect to device
 47    try:
 48        dev.connect("192.168.1.110")  ## Depend on your device
 49    except Exception as err:
 50        pywpc.printGenericError(err)
 51        ## Release device handle
 52        dev.close()
 53        return
 54
 55    try:
 56        ## Parameters setting
 57        slot = 1  ## Connect DIO module to slot
 58        DO_port = 0
 59
 60        ## Get firmware model & version
 61        driver_info = await dev.Sys_getDriverInfo_async()
 62        print(f"Model name: {driver_info[0]}, Firmware version: {driver_info[-1]} ")
 63
 64        ## Get slot mode
 65        slot_mode = await dev.Sys_getMode_async(slot)
 66        print("Slot mode:", slot_mode)
 67
 68        ## If the slot mode is not set to "DIO", set the slot mode to "DIO"
 69        if slot_mode != "DIO":
 70            err = await dev.Sys_setDIOMode_async(slot)
 71            print(f"Sys_setDIOMode_async in slot {slot}, status: {err}")
 72
 73        ## Get slot mode
 74        slot_mode = await dev.Sys_getMode_async(slot)
 75        print("Slot mode:", slot_mode)
 76
 77        ## Get DIO start up information
 78        info = await dev.DIO_loadStartup_async(DO_port)
 79        print(f"Enable: {info[0]}")
 80        print(f"Direction: {info[1]}")
 81        print(f"State: {info[2]}")
 82
 83        ## Toggle digital state for 10 times. Each times delay for 0.5 second
 84        for i in range(10):
 85            state = await dev.DO_togglePort_async(DO_port)
 86            print(state)
 87
 88            ## Wait for 0.5 second to see led status
 89            await asyncio.sleep(0.5)   ## delay [sec]
 90    except Exception as err:
 91        pywpc.printGenericError(err)
 92
 93    finally:
 94        ## Disconnect device
 95        dev.disconnect()
 96
 97        ## Release device handle
 98        dev.close()
 99
100
101def main_for_spyder(*args):
102    if asyncio.get_event_loop().is_running():
103        return asyncio.create_task(main(*args)).result()
104    else:
105        return asyncio.run(main(*args))
106
107
108if __name__ == '__main__':
109    asyncio.run(main())  ## Use terminal
110    # await main()  ## Use Jupyter or IPython(>=7.0)
111    # main_for_spyder()  ## Use Spyder