what metric is the power property on getPowerUsage()?

[thanhvuong]

Is this kWh?
{"power": 304.581534, "total": 0.879, "current": 4.13536, "voltage": 121.355707, "err_code": 0}

[adumont]

Could you check in the Kasa app at the same time and see how it represents the same data? There should be a relation. Maybe you can send a screen shot of the app showing the power usage, and the result of the API method call, both taken at approximately the same time? Thanks.

[thanhvuong]

This is all I see in the app. Is it watts?

[Jackthomsonn]

Any updates on this?

[zoernert]

It is Watts - however I wonder what the "total" value is as this one does not sum up to any of the values presented in Kasa APP - nor does it fit to the real total (lifetime) value.

[ironsm4sh]

I have a new HS110, with (presumably) newer firmware. This plug will return a different JSON. it is structured to show the unit of a measurement too.

{"power_mw": 0.0, "total_wh": 0.0, "current_ma": 0.0, "voltage_mv": 0.0, "err_code": 0}

The units being milliwatts, watthour, milliampere and millivolt.
However, while the Kasa app reports a total usage of 1.8kWh, the HS110's API will report a total of 4,1 kWh (in wh). I have not checked carefully, but this may be a constant offset.

I would like to add to this that I am NOT using the tplink-cloud-API, but that I am reading this data directly from the device by opening a socket connection to it over the local network. But this shouldn't make a big difference.

[tnmendes]

Hey guys maybe I can help with this, for example, the UK plug HS110 uses the string "total" and the EU use "total_wh".
So you have to multiply by 1000 to have the same value.

I am also developing a small project for the TP-link community that have iOS/iPad
https://watt-app.com/

Here is the Swift class that I use to convert JSON to object, I think it can help.

class GetRealtime: Codable {
    let voltage: Double? // voltage  E.G. 123.965090   (US plug)
    let voltageMv: Int?  // voltage  E.G. 243512
    let current: Double? // current  E.G. 0.915185     (US Plug)
    let currentMa: Int?  // current  E.G. 77
    let powerMw: Int?    // Power    E.G. 7538
    let power: Double?   // Power    for HS110(UK) "power\":6.947870
    let totalWh: Int?    // Total
    let total: Double?   // Total for HS110(UK) "total\":0.259000
    let errCode: Int
    
    enum CodingKeys: String, CodingKey {
        case voltage
        case voltageMv = "voltage_mv"
        case current
        case currentMa = "current_ma"
        case powerMw = "power_mw"
        case power
        case totalWh = "total_wh"
        case total
        case errCode = "err_code"
    }
    
    init(voltage: Double?, voltageMv: Int?, current: Double?, currentMa: Int?, powerMw: Int?, power: Double?, totalWh: Int?, total: Double?, errCode: Int) {
        self.voltage = voltage
        self.voltageMv = voltageMv
        self.current = current
        self.currentMa = currentMa
        self.powerMw = powerMw
        self.power = power
        self.totalWh = totalWh
        self.total = total
        self.errCode = errCode
    }
    
    
    // Return power in mW
    func getPower() -> Int {
        
        if let power = self.powerMw {
            return power
        }
        if let power = self.power {
            return Int(power*1000)
        }
        return 0
    }
    
    
    // Return voltage in mV
    func getVoltage() -> Int {
        
        if let voltage = self.voltageMv {
            return voltage
        }
        if let voltage = self.voltage {
            return Int(voltage*1000)
        }
        return 0
    }
    
    
    // Return current in mA
    func getCurrent() -> Int {
        
        if let current = self.currentMa {
            return current
        }
        if let current = self.current {
            return Int(current*1000)
        }
        return 0
    }
    
    // Return in total Wh
    func getTotal() -> Double {
        
        if let total = self.totalWh {
            return Double(total)
        }
        if let total = self.total {
            return total*1000
        }
        return 0.0
    }
    
}