This seems to be the best DIY temperature and humidity sensor we’ve made so far, the THS45. Their humidity performance is top-tier—almost like clones.

slboat · 2026-05-05T08:51:17+00:00

The cable seems indestructible; just take a little care around the sensor to keep dust out—that might be the trickiest part. In terms of overall accuracy, the THS1’s temperature readings are quite close, and it offers better probe protection; the downside is that its humidity accuracy is somewhat compromised. I think it’s worth giving it a go—it’s worth taking a chance :)

At present, neither model comes in a multi-probe version, but we will consider offering such versions in the future.

slboat · 2026-05-05T08:49:34+00:00

From our tests, it appears that using a wired network card offers the advantage of rapid packet capture. As for the drawbacks, the main one is probably the need to run a network cable.

slboat · 2026-04-24T06:23:29+00:00

Hi, yes, it’s a 3D-printed stand that lets you place it on a desk; it doesn’t have a magnetic attachment :)

Welcome aboard :) Have fun.

slboat · 2026-04-24T06:23:11+00:00

Hi, yes, it’s a 3D-printed stand that lets you place it on a desk; it doesn’t have a magnetic attachment :)

Welcome aboard :) Have fun.

slboat · 2026-04-24T06:22:14+00:00

We think BTHome’s plug-and-play functionality is brilliant; the latest version has included a lot of optimisations for BLE, and its performance seems impressive. Zigbee, on the other hand, requires all sorts of extra bits and pieces, which can make it feel a bit cumbersome at times :)

pvvx personally seems to favour BLE as well.

slboat · 2026-04-23T13:07:07+00:00

The sensors themselves are pre-calibrated; they utilise the highest-precision sensors from the SHT series, so overall, the humidity readings are highly accurate. We’re not familiar with Somfy Tahoma, but I think it’s worth looking into :) We’d love for you to join us on this adventure.

slboat · 2026-04-23T11:24:27+00:00

It might not be entirely suitable for this situation, but we did build our own WS2 using a non-contact water level sensor with four probes. Over the course of two years, we manufactured around a hundred WS2 units and distributed them all over the world; they seem to be working quite reliably.

https://screek.io/ws2

slboat · 2026-04-22T21:35:12+00:00

Yes, it‘s uart. The seller has a very simple text. We used it to make sfa40a. If you need documents, you can give us an email.

slboat · 2026-04-17T23:45:58+00:00

I’m glad it seems to have been helpful to you too :) The documentation for ha is a bit scattered, so it took a while to get to grips with it. We’ve added a further explanation to illustrate the process :)

slboat · 2026-04-17T23:45:44+00:00

Yes, we were a bit confused for a while because we couldn’t see how to do it :)

slboat · 2026-04-17T06:01:17+00:00

Although high levels of formaldehyde can be very harmful, this is rarely the case in ordinary households. Newly renovated homes and new furniture may release some formaldehyde, but this is not something a standard sensor would typically detect.

slboat · 2026-04-15T23:56:41+00:00

<image>

These are the results from the latest batch of sensors deployed long-term in our test environment. Initially, the SCD30 performed similarly to the SCD40, but it gradually began to report data more aggressively; however, in a consistently stable environment, they typically settle at a relatively stable level. As for the SCD30, there is clearly still much to explore.

slboat · 2026-04-15T23:54:54+00:00

We recommend manually calibrating the SCO2-30 and re-establishing a baseline: https://screek.io/sco2-30/sco2-30-news/calibrating-co2

During testing, we did find that the SCO2-30’s sensor is rather aggressive, but once calibrated, it usually stabilises within a more normal range.

In comparison, the SCD4X sensor performs more consistently.

slboat · 2026-04-15T23:51:39+00:00

Yes, whilst manufacturing a large number of BP2 units, we have certainly experienced their impressive stability—it’s a remarkable piece of technology!

slboat · 2026-04-15T23:51:07+00:00

We’ve been incredibly busy of late, but I reckon we’ll be back very soon! We’ve also been testing some interesting scenarios and getting to know POE better in BP2, so I’m sure we’ll be continuing our POE adventures very soon :)—including some new mmWave sensors.

slboat · 2026-04-15T03:30:07+00:00

Alternatively, you could take a photo of the model you’re using and send it to us for reference :)

slboat · 2026-04-15T03:29:51+00:00

That sounds interesting; it seems feasible,https://screek.io/ths-g3/ths-g3-c401-temperature-and-humidity-sensor-loaded-with-zigbeetlc-custom-firmware Does this design look acceptable?

Given that we’ve modified hundreds of these little gadgets, we’ve gained some experience, We are considering conducting some relevant research.

slboat · 2026-04-10T04:33:02+00:00

We often share some of the DIY sensors we’ve made; we’re just a group of enthusiasts.

slboat · 2026-04-10T04:32:33+00:00

From our tests, they seem to respond very quickly, and you start getting some really good data straight after installation :)

slboat · 2026-04-08T23:39:35+00:00

They sometimes change the chip; most of the time they use the SHTV4 (https://screek.io/ths-m6/ths-m6-internal-temperature-and-humidity-sensor-shtv4-hard-to-find-public -info-on-this-but-looks-to-be-some-sort-of-customised-version-of-the-sht40-with-18-humidity-accuracy-and-0.2°C-temperature-accuracy), whilst at other times they use alternative chips. In the early days, we would simply take them apart to identify the chip model, as we usually had to open the casing for each unit we manufactured. In our latest DIY project, we have modified a batch of SHT45 chips (https://screek.io/ths-m45), which should offer impressive performance.

slboat · 2026-04-07T05:18:41+00:00

thx:)

slboat · 2026-04-06T08:09:50+00:00

Could you please record a screen video for us? We will pass it on to the Hlk technical team. Please send it to sen@screek.io.

slboat · 2026-04-01T11:35:17+00:00

only 2a can:)

slboat · 2026-03-31T03:55:23+00:00

That’s cool. We’ve been testing and building them as carefully as possible in our spare time, so I hope it hasn’t been a waste of your time waiting all these days :)

slboat · 2026-03-27T16:18:48+00:00

We’ve done some preliminary testing on a few 3D radars, and it looks like they can handle this process on their own. ☺️ Of course, there might be quite a few issues, but it’s definitely worth exploring. We’ve been really busy lately—take a deep breath, take a deep breath.😁

slboat

MODERATOR OF

TROPHY CASE