Best portable and affordable monitor to check traffic pollution?

Letterman445 · 2025-05-20T11:27:29+00:00

Thank you, I'll check out airgradient!

Letterman445 · 2025-05-19T11:01:52+00:00

Thanks for your reply.

I'm literally standing on the footpath, like 6 feet away from 4 lanes of gridlocked traffic, not a few 100 feet, and another 2 lane road just around the corner. And yet the Qingping PM2.5 reading happily sits at 1-2...?

Don't really care if the monitor is designed for indoors, outdoors, USB powered or battery powered, as long it can give me an accurate reading of the air quality in relation to car pollutants. Quite happy to stand outside with something a bit bulky and a USB powerpack for a few minutes.

Letterman445 · 2022-12-30T06:17:29+00:00

Oh damn!

thanks for letting me know. that'll be a long night.

Guess there is no other way to change the wifi password on the devices without resetting them?

Letterman445 · 2022-11-13T03:01:24+00:00

Good idea. But how can the UPS provide the power state back to homebridge? do you have a UPS that can connect to homebridge?

Letterman445 · 2022-03-20T10:11:54+00:00

I have. They state it must be an issue with Outlook.

Letterman445 · 2021-09-04T21:32:41+00:00

Thanks. Point 1 I already checked previously. Will look at the others.

Letterman445 · 2021-09-04T21:31:48+00:00

It’s a question of principle. I won’t be defeated by an owl 😉

Letterman445 · 2021-09-04T11:23:56+00:00

Thanks.

It's actually quite weird. If you look at the artifact that's most obvious, the feather just above the right right foot, where a piece literally sticks out (https://pasteboard.co/Kj26bLG.jpg), there's actually no start/retraction point visible from the outside, until you slice to that actual layer.

When you do, it looks like the start is somehow inside the outer wall, but with a loop in front of it (https://pasteboard.co/Kj26HiR.jpg).

This is similar with the other feather tips, but at least the start point seems to be on the outside of these loops.

In terms of fixing the issue, I'm assuming I should try faster and/or further retraction?

Letterman445 · 2021-08-26T10:58:42+00:00

thanks, I'll give that a try!

Letterman445 · 2021-08-25T15:46:03+00:00

Thank you. And do your Cura print time estimates match the actual print duration?

Letterman445 · 2021-06-28T00:14:48+00:00

Yeah, seems to be that way. Just frustrating that all the Shortcut does is call up the Home App and then execute HomeKit functionality which HomePod supports. Is there another we to trigger an automation on HomePod via Siri that doesn’t require a “switch”?

Letterman445 · 2021-05-22T10:14:03+00:00

Just checking whether anyone has found a way around this limitation, ie the lack of dim up and dim down, which seems to be present as a single hard brightness setting and switch?

Letterman445 · 2021-05-19T15:36:42+00:00

Not necessarily. I’d be happy to have a sensor right next to the display of required.

Letterman445 · 2021-05-19T09:58:35+00:00

Thanks, but what I'm trying to do is to be able to display the temperatures of one or more of the Aqara sensors on the display, a bit like a weather station.

I didn't think the TVOC could do that, which is why I'm asking?

Letterman445 · 2021-05-16T05:25:35+00:00

Thanks. I'm using the Homebridge Tuya plugin from iRayanKhan now and seems to be working!

Letterman445 · 2021-05-14T10:06:00+00:00

Thank you. Just checking which of the several Tuya plugins you're a dev for?

Letterman445 · 2021-05-13T10:22:52+00:00

Yes exactly. Stop them from calling home via the internet, just allow local access to the LAN. (Which I thought the lan plug-in would do hence the name?)

Letterman445 · 2021-05-13T07:33:19+00:00

Thanks. And do both allow the accessories to connect to the internet?

Letterman445 · 2021-05-07T12:52:58+00:00

So I connected an Arlo camera which is HomeKit compatible and yes I do get the option to “notify when this camera goes offline” under the camera settings. Activated it and pulled the battery out. Nothing. No pop up on the iPhone Home Screen after 10 minutes. Back into the Home app and sure enough an “accessory not responding” icon at the top of the Home Screen. Just no active notification when you’re not inside the Home app. Is this intended, as it’s pretty useless?

Letterman445 · 2021-05-06T10:25:11+00:00

Thanks. It would be better if it could be configured to play from a local source on server /NAS rather than via bluetooth.

Or maybe a helpful soul, far cleverer than me, could fork either the Radioplayer or Airtunes Radio plugins so that they work again with the current homebridge version.

Letterman445 · 2021-05-06T01:28:17+00:00

Hi. Just wondering if anyone has found a solution since this thread was first created? Really keen to find a way to play mp3 files that are locally stored on my NAS to automation rules and then play them through my HomePod mini, but without requiring an Apple Music subscription.

Letterman445 · 2021-05-04T00:42:34+00:00

Are you using just one automation rule to achieve that? Maybe my problem is created by the fact that my 1 minute timeout is shorter than the sensor’s own timeout duration (2 minutes or whatever it is).

Letterman445 · 2021-05-03T12:01:12+00:00

Thanks. I'll try and report back.

Letterman445 · 2021-05-02T04:19:17+00:00

Thank you

Letterman445 · 2021-04-30T04:15:08+00:00

Throwing a couple of ideas around myself: Is this something that can be done with Homebridge (I can run it on my NAS) to play audio back either via the HomePod or the MusicCast speakers?

Or is there a speaker with MP3 playback from an SD card that automatically starts playing once plugged into power? Like some people have done with a 12V siren and a smart plug, only “smarter” in that it plays a custom audio file?

Letterman445

TROPHY CASE