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simple shelly plus script to get wlan quality as an checkmk local check

 #!/usr/bin/python

import requests

import sys

import re



# Define version at the top for easy modification

VERSION = "2025-08-19"



# Set DEBUG to 1 to enable debug output, 0 to disable

DEBUG = 0



def get_rssi(ip_address):

    url = f'http://{ip_address}/rpc/Shelly.GetStatus'

    try:

        response = requests.get(url)

        if response.status_code == 200:

            data = response.json()

            if DEBUG:

                print("=== Debug: Raw JSON response ===")

                print(data)

                print("=== End of response ===")

            # Depending on Shelly model, Wi-Fi info may be under different keys

            wifi_info = data.get('wifi', {})

            rssi_value = wifi_info.get('rssi')

            ssid_value = wifi_info.get('ssid')

            bssid_value = wifi_info.get('bssid')

            if rssi_value is not None:

                print("<<<check_mk>>>")

                print(f"Version: {VERSION}")

                print("<<<local>>>")

                print(f"0 shellyplus1-wlan rssi={rssi_value}  RSSI value is {rssi_value}dBm, SSID is {ssid_value}, BSSID is {bssid_value}")

            else:

                print("RSSI info not found in the device status.")

        else:

            print(f"Failed to retrieve /status from {ip_address}, status code: {response.status_code}")

    except Exception as e:

        print(f"Error accessing {ip_address}: {e}")



if __name__ == "__main__":

    if len(sys.argv) != 2:

        print("Usage: python shellyPlus1.py <IP_ADDRESS>")

    else:

        get_rssi(sys.argv[1])

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simple shelly plus script to get wlan quality as an checkmk local check