* https://tasmota.github.io/docs/Commands/#power-monitoring

<code>
IP=192.168.5.105

[chris@космос ~]$ curl http://$IP/cm?cmnd=Power%20On   // turn power on
[chris@космос ~]$ curl http://$IP/cm?cmnd=Power%20Off  // turn power off
[chris@космос ~]$ curl http://$IP/cm?cmnd=LedPower%200 // turn LED off
[chris@космос ~]$ curl http://$IP/cm?cmnd=LedPower%201 // turn LED on

[chris@космос ~]$ curl -s http://$IP/cm?cmnd=EnergyToday|jq
{
  "EnergyToday": {
    "Total": 0.076,      // Energy Today (kWh)
    "Yesterday": 0.000,  // Energy Yesterday (kWh)
    "Today": 0.076       // Energy Total (kWh)
  }
}
[chris@космос ~]$ 
[chris@космос ~]$ curl -s http://$IP/cm?cmnd=Status%208|jq
{
  "StatusSNS": {
    "Time": "2023-05-07T07:45:05",
    "ENERGY": {
      "TotalStartTime": "1970-01-01T00:00:00",
      "Total": 0.076,      // Energy Today (kWh)
      "Yesterday": 0.000,  // Energy Yesterday (kWh)
      "Today": 0.076,      // Energy Total (kWh)
      "Power": 0,          // Active Power (W)
      "ApparentPower": 0,  // Apparent Power (VA)
      "ReactivePower": 0,  // Reactive Power (VAr)
      "Factor": 0.00,      // Power Factor
      "Voltage": 146,      // voltage (Volt)
      "Current": 0.000     // Current (Ampere)
    }
  }
}
[chris@космос ~]$

// calibrate voltage to 100V
[chris@космос ~]$ curl -s http://192.168.5.105/cm?cmnd=VoltageSet%20100

</code>