Pull adc voltage from Shelly Uni

The Shelly Uni supplies the input voltage on the /info topic with the following data:

{
  "wifi_sta": {
    "connected": true,
    "ssid": "Highsteads_AC",
    "ip": "192.168.100.235",
    "rssi": -41
  },
  "cloud": {
    "enabled": false,
    "connected": false
  },
  "mqtt": {
    "connected": true
  },
  "time": "20:27",
  "unixtime": 1614889637,
  "serial": 32,
  "has_update": false,
  "mac": "483FDA6EAD20",
  "cfg_changed_cnt": 9,
  "actions_stats": {
    "skipped": 0
  },
  "relays": [
    {
      "ison": false,
      "has_timer": false,
      "timer_started": 0,
      "timer_duration": 0,
      "timer_remaining": 0,
      "source": "mqtt"
    },
    {
      "ison": false,
      "has_timer": false,
      "timer_started": 0,
      "timer_duration": 0,
      "timer_remaining": 0,
      "source": "mqtt"
    }
  ],
  "inputs": [
    {
      "input": 0
    },
    {
      "input": 0
    }
  ],
  "adcs": [
    {
      "voltage": 12.13
    }
  ],
  "ext_sensors": {},
  "ext_temperature": {},
  "ext_humidity": {},
  "update": {
    "status": "idle",
    "has_update": false,
    "new_version": "20201124-093042/v1.9.0@57ac4ad8",
    "old_version": "20201124-093042/v1.9.0@57ac4ad8"
  },
  "ram_total": 49944,
  "ram_free": 34516,
  "fs_size": 233681,
  "fs_free": 140058,
  "uptime": 3497
}

The data should be accessible through: payload['adcs'][0]['voltage'].

AaronLionsheep / ShellyMQTT

Pull adc voltage from Shelly Uni #109