Target temp 'NaN'

[Jorick-tv]

Hoi Robert,

I'm repeatedly (every so often) getting the message:

[9/17/2022, 8:49:52 PM] [homebridge-nefit-easy] This plugin generated a warning from the characteristic 'Target Temperature': characteristic value expected valid finite number and received "NaN" (number). See https://homebridge.io/w/JtMGR for more info.

Target temp is set to 16 right now, as it's still fair weather in the Netherlands, but it won't be long.

[robertklep]

If you run Homebridge in debugging mode it should log the actual value it's receiving (plus a whole bunch of other stuff). I'm interested to know what exactly gets sent back by the Nefit when it received a NaN (although I realise it might be difficult to "catch" such an occurrence).

[Jorick-tv]

In debugging mode this is what I get:

[9/20/2022, 8:56:44 PM] [thermostat] Getting current state.. [9/20/2022, 8:56:44 PM] [thermostat] Getting current temperature... [9/20/2022, 8:56:44 PM] [thermostat] Getting target temperature... [9/20/2022, 8:56:44 PM] [thermostat] ...current temperature is 21.6 [9/20/2022, 8:56:44 PM] [thermostat] ...target temperature is 17 [9/20/2022, 8:56:44 PM] [thermostat] ...current state is off

so that seems fine.
This also shows up a lot, bit I don’t think it’s related:
processLeAdvertisingReport: Caught illegal packet (buffer overflow): TypeError: Cannot read properties of undefined (reading 'slice')

hope this helps

[robertklep]

Now you'll have to wait until you get a NaN ;)

And yes, the processLeAdvertisingReport warning is unrelated, looks to be an internal Homebridge thing.

[Jorick-tv]

[9/22/2022, 12:36:08 PM] [thermostat] Getting current state.. [9/22/2022, 12:36:08 PM] [thermostat] Getting current temperature... [9/22/2022, 12:36:08 PM] [thermostat] Getting target temperature... [9/22/2022, 12:36:08 PM] [thermostat] ...current temperature is 23 [9/22/2022, 12:36:08 PM] [thermostat] ...target temperature is 17 [9/22/2022, 12:36:08 PM] [thermostat] ...current state is off [9/22/2022, 12:36:08 PM] [thermostat] Getting current temperature... [9/22/2022, 12:36:08 PM] [thermostat] Getting target temperature... [9/22/2022, 12:36:08 PM] [thermostat] Getting current state.. [9/22/2022, 12:36:09 PM] [thermostat] ...current temperature is NaN [9/22/2022, 12:36:09 PM] [homebridge-nefit-easy] This plugin generated a warning from the characteristic 'Current Temperature': characteristic value expected valid finite number and received "NaN" (number). See https://homebridge.io/w/JtMGR for more info. [9/22/2022, 12:36:09 PM] [homebridge-nefit-easy] Error: at CurrentTemperature.Characteristic.characteristicWarning (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/Characteristic.ts:2142:105) at CurrentTemperature.Characteristic.validateUserInput (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/Characteristic.ts:2030:14) at /usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/Characteristic.ts:1617:24 at /usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/util/once.ts:10:18 at /usr/lib/node_modules/homebridge-nefit-easy/index.js:50:12 at tryCatcher (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/util.js:16:23) at Promise._settlePromiseFromHandler (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:547:31) at Promise._settlePromise (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:604:18) at Promise._settlePromise0 (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:649:10) at Promise._settlePromises (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:729:18) �[90m at Promise._fulfill (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:673:18) at Promise._resolveCallback (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:466:57) at Promise._settlePromiseFromHandler (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:559:17) at Promise._settlePromise (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:604:18) at Promise._settlePromise0 (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:649:10) at Promise._settlePromises (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:729:18) [9/22/2022, 12:36:09 PM] [thermostat] ...target temperature is NaN [9/22/2022, 12:36:09 PM] [homebridge-nefit-easy] This plugin generated a warning from the characteristic 'Target Temperature': characteristic value expected valid finite number and received "NaN" (number). See https://homebridge.io/w/JtMGR for more info. [9/22/2022, 12:36:09 PM] [homebridge-nefit-easy] Error: at TargetTemperature.Characteristic.characteristicWarning (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/Characteristic.ts:2142:105) at TargetTemperature.Characteristic.validateUserInput (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/Characteristic.ts:2030:14) at /usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/Characteristic.ts:1617:24 at /usr/lib/node_modules/homebridge/node_modules/hap-nodejs/src/lib/util/once.ts:10:18 at /usr/lib/node_modules/homebridge-nefit-easy/index.js:50:12 at tryCatcher (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/util.js:16:23) at Promise._settlePromiseFromHandler (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:547:31) at Promise._settlePromise (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:604:18) at Promise._settlePromise0 (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:649:10) at Promise._settlePromises (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:729:18) at Promise._fulfill (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:673:18) at Promise._resolveCallback (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:466:57) at Promise._settlePromiseFromHandler (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:559:17) at Promise._settlePromise (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:604:18) at Promise._settlePromise0 (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:649:10) at Promise._settlePromises (/usr/lib/node_modules/homebridge-nefit-easy/node_modules/bluebird/js/release/promise.js:729:18) [9/22/2022, 12:36:09 PM] [thermostat] ...current state is null

[robertklep]

[9/22/2022, 12:36:08 PM] [thermostat] Getting current state..
[9/22/2022, 12:36:08 PM] [thermostat] Getting current temperature...
[9/22/2022, 12:36:08 PM] [thermostat] Getting target temperature...
[9/22/2022, 12:36:08 PM] [thermostat] ...current temperature is 23
[9/22/2022, 12:36:08 PM] [thermostat] ...target temperature is 17
[9/22/2022, 12:36:08 PM] [thermostat] ...current state is off
[9/22/2022, 12:36:08 PM] [thermostat] Getting current temperature...
[9/22/2022, 12:36:08 PM] [thermostat] Getting target temperature...
[9/22/2022, 12:36:08 PM] [thermostat] Getting current state..
[9/22/2022, 12:36:09 PM] [thermostat] ...current temperature is NaN
[9/22/2022, 12:36:09 PM] [thermostat] ...target temperature is NaN
[9/22/2022, 12:36:09 PM] [thermostat] ...current state is null

One second it works fine and the next it receives bogus values 🤔

I never used this plugin myself, but it's also unexpected that it makes that many calls in close succession. It may require some sort of throttling, I doubt it's useful to retrieve updates that often.

[Jorick-tv]

Can you give me some hints on how to do that?

but also; it does read values most of the time, so it’s not a critical error, right?

[robertklep]

As long as Homebridge is just complaining about it but everything is looking good on iOS it's not a critical issue, no.

In terms of throttling, that's something I'll have to implement into the code, but since I don't use Homebridge and don't have a Nefit Easy anymore it's going to be difficult 😬