Have battery status of devices passed through to Home Assistant

[deepcoder]

I see a JSON pair "batteryStatus" : {0,1,2...?} in the Items.data file for devices, however this info does not seem to be passed to Home Assistant. Is there a way to pass this data?

Thanks!

It is passed to home assistant, this is using a deprecated API, but you should see a "battery" attribute on the entity.

[miguelangel-nubla]

@ext4xfs I don't see it, could you provide more details about the API it is supposedly using?

get battery level

FindMySync/FindMySync/Synchronizer.swift

Lines 640 to 654 in 842bb64

	var batteryLevel = NSNumber(
	value: -1)
	if let battery =
	item["batteryLevel"]
	as? NSNumber
	{
	log(
	"- - Battery level: "
	+ battery
	.stringValue
	)
	batteryLevel =
	battery
	}

entities to update

FindMySync/FindMySync/Synchronizer.swift

Lines 656 to 665 in 842bb64

	updateEntity(
	id: id,
	latitude: latitude,
	longitude:
	longitude,
	accuracy: accuracy,
	battery:
	batteryLevel,
	address: fullAddress
	)

request body sent to home assistant

FindMySync/FindMySync/Synchronizer.swift

Lines 740 to 756 in 842bb64

	var bodyObject: [String: Any] = [
	"dev_id": "findmy_" + id.replacingOccurrences(of: "-", with: ""),
	"gps": [
	latitude.floatValue,
	longitude.floatValue,
	],
	"gps_accuracy": accuracy.floatValue,
	"host_name": address,
	]
	if battery.floatValue > 0 {
	bodyObject["battery"] =
	(battery.floatValue > 0)
	? (battery.floatValue * 100) : battery.floatValue
	}
	request.httpBody = try! JSONSerialization.data(
	withJSONObject: bodyObject, options: [])

device_tracker domain
https://www.home-assistant.io/integrations/device_tracker/#device_trackersee-action

rest api /api/services/<domain>/<service>
https://developers.home-assistant.io/docs/api/rest/#actions

[miguelangel-nubla]

Thank you for the detailed response.

I think we are talking about different things, the code is reading batteryLevel which I only see on Devices.data for the full devices (iphone, etc).

This issue is about getting the battery status of airtags and similar devices in Items.data, which seem to only have a batteryStatus attribute.

On my devices batteryStatus=1 corresponds to a full battery, batteryStatus=2 next to full.
I don't know if that attribute is supposed to represent battery level but it is certainly not parsed or sent to home assistant right now.

ah I see what you mean, yeah it's there for devices but not items.

[miguelangel-nubla]

@MartinPham any chance to include battery status for items?

[jasgroupit]

yeah need battery status for items its quite important so we know the status of the items battery so even if dont have iphone near us we know battery conditions
@MartinPham

I don't think it's useful information, batteryStatus 1 or 2 doesn't tell you much for airtags at least, since they use a coin battery without any fancy circuitry.

[jasgroupit]

At the very least using battery status 1 or 2 we can tell if the battery is in ok or degraded stage so we can monitor , if u can add that or enable that would great so i can scene in homeassistant to cross check if 24 hour

[jasgroupit]

@MartinPham @ext4xfs the status for items possible ?

[manonstreet]

FWIW, my fork FindMySyncPlus supports this capability. But it was mainly written to support new macOS's versions which have the data files encrypted. My function can be ported to this project if desired:

private func batteryFromStatus(_ any: Any?) -> Double? {
    // Accept a few common shapes for Items:
    // - String statuses like "full", "normal", "medium", "low", "verylow", "critical"
    // - Numeric percentages (0-100)
    // - Fractions (0.0-1.0)
    if let d = any as? Double {
        if d.isNaN || d.isInfinite { return nil }
        return d > 1.0 ? max(0.0, min(1.0, d / 100.0)) : max(0.0, min(1.0, d))
    }
    if let i = any as? Int {
        return max(0.0, min(1.0, Double(i) / 100.0))
    }
    if let s = (any as? String)?.trimmingCharacters(in: .whitespacesAndNewlines).lowercased() {
        switch s {
        case "full", "max", "high":
            return 1.0
        case "normal", "good":
            return 0.75
        case "medium", "fair":
            return 0.5
        case "low":
            return 0.25
        case "verylow", "critical", "very low":
            return 0.1
        default:
            // Try to parse numeric-in-string (either percent or fraction)
            if let asNum = Double(s) {
                return asNum > 1.0 ? max(0.0, min(1.0, asNum / 100.0)) : max(0.0, min(1.0, asNum))
            }
            return nil
        }
    }
    return nil
}