Blog - All Comments

RE: Cool Wave - The Heat Reduction Concept

DAB — Thu, 23 Apr 2026 20:02:25 GMT

That solution will help, but getting better insulation and using reflective coatings on buildings would help more.

RE: Cool Wave - Project Summary

beacon_dave — Sat, 16 Aug 2025 12:01:03 GMT

[mention:2fe2c63b9c1b44eba25cdc436c6aca2f:e9ed411860ed4f2ba0265705b8793d05] Just wondering if you have any progress updates on this project now that there have been a couple of summers to conduct some tests ?

RE: Winners Announcement - Summer of Green Tech

amgalbu — Tue, 07 Nov 2023 19:14:17 GMT

I missed the announcement! Thanks to element14 and to the judges! And compliments to all other winners and finishers!

RE: Cool Wave - Project Summary

ntewinkel — Mon, 06 Nov 2023 23:35:22 GMT

This is a really nice project!

The concept it simple, but very useful. You described all the steps well, included all the pieces. I hope others will be able to make use of it.

I've done this the old-school manual way for many years: check temperature inside and outside, and open the windows when it's cooler outside, close them when it's hotter outside. [emoticon:752f32bcc91d4a448db162742a877a4a] But it depends on natural air movement, which isn't always available, and I don't trust the cats to stay safe... they tend to whack at insects on the window screens [emoticon:752f32bcc91d4a448db162742a877a4a]

I might have to add this idea to my list of winter projects. I might have to add a smoke sensor to the outside sensor though [emoticon:7001ca6adc474a82b3fba88f98f15573]

RE: Cool Wave - Testing temperature sensors for use with the Seeeduino XIAO

ntewinkel — Mon, 06 Nov 2023 23:20:19 GMT

Great overview of temperature sensors.

Good point about the MicroPython limitations - I didn't even stop to think that this might be an issue. I've been planning to move more to MicroPython, but it might not be a simple thing to do [emoticon:5ce50ea3f9eb49809e861e8733750338]

You might also like the BME280 (temp+humidity+pressure) or BMP280 (temp+pressure). They are quite affordable too, and easy to use in Arduino - Adafruit has boards, examples, and libraries. I don't know how well supported they would be for MicroPython. I did find I had to reset the power to them under certain conditions for long-term use, so I power it via a GPIO pin and give it a reboot if it fails to come online for the regular temperature/humidity updates my sensor does.

RE: Cool Wave - Setting up the Seeeduino XIAO

ntewinkel — Mon, 06 Nov 2023 23:07:13 GMT

This is really good! People underestimate the importance of the flashing LED "hello, world!" type of application [emoticon:c4563cd7d5574777a71c318021cbbcc8]

RE: Winners Announcement - Summer of Green Tech

hitesh.boghani — Fri, 03 Nov 2023 19:35:13 GMT

Congratulations to the winners and finishers! Nice projects!

RE: Winners Announcement - Summer of Green Tech

redcharly — Fri, 03 Nov 2023 19:11:58 GMT

Congratulations, great challenge!

RE: Winners Announcement - Summer of Green Tech

sandeepdwivedi17 — Fri, 03 Nov 2023 15:34:59 GMT

Congratulations to Alistair , amgalbu ,Zhar_14 and all other participants

RE: Winners Announcement - Summer of Green Tech

JWx — Fri, 03 Nov 2023 14:42:14 GMT

Congratulations!

RE: Winners Announcement - Summer of Green Tech

javagoza — Fri, 03 Nov 2023 11:29:30 GMT

Amazing projects. Congratulations

RE: Winners Announcement - Summer of Green Tech

Alistair — Fri, 03 Nov 2023 10:29:06 GMT

Well, yay, thank you. I am glad my entry was appreciated. :-)

RE: Winners Announcement - Summer of Green Tech

scottiebabe — Thu, 02 Nov 2023 21:37:49 GMT

Awesome work saving the [emoticon:cfe26dc5dc444127b131e47c4a03b5b5] [emoticon:12b4d7d82eab4c9296f4f45657a8e383]

RE: Winners Announcement - Summer of Green Tech

DAB — Thu, 02 Nov 2023 18:35:27 GMT

Well done everyone, this was a very interesting challenge to follow.

RE: Winners Announcement - Summer of Green Tech

dougw — Thu, 02 Nov 2023 18:09:07 GMT

Congratulations to the participants. Great work on the project theme this year.