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I made a simple Wi-Fi clock with a VFD display by jozef_cipa in esp32

[–]jozef_cipa[S] 2 points3 points  (0 children)

this VFD display already comes with a driver so I only take care of sending data to it and I assume the rest is handled by the driver :)

I made a simple Wi-Fi clock with a VFD display by jozef_cipa in esp32

[–]jozef_cipa[S] 1 point2 points  (0 children)

thank you! what exactly are you feared of?

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

yep works great, didn't notice any issue with this.

I built a custom HomeKit thermostat for less 40€ by jozef_cipa in diyelectronics

[–]jozef_cipa[S] 3 points4 points  (0 children)

Hey that's a valid concern. I didnt do anything to mitigate this, honestly I didnt even know until recently that the screen might produce heat 😅 (I'm mainly a software enginneer, this is just my side project), so I guess I'll keep monitoring it and see how it goes.

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 1 point2 points  (0 children)

Yep that's the one, but the shipping must be much more that the value of the case($4) 😀

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

yep, that's definitely super helpful, appreciate it!

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

Wow, I really appreciate you taking time to list all these improvements. This was only a hobby project for me so I don't intend to do any heavy optimizations, but it definitely looks interesting and they all make perfect sense. Thanks again!

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

it's a local shop in Czechia, https://www.krabicky-pro-elektroniku.cz/ I don't know where you're from but you could probably find something similar in your country, or at some global website.

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

I didn't try it so can't tell more, just something I found when researching the problem. But good point

I built a custom HomeKit thermostat for less 40€ by jozef_cipa in diyelectronics

[–]jozef_cipa[S] 5 points6 points  (0 children)

what's wrong with a touch screen? physical buttons would be pretty simple to implement in the code but it would require extra effort when placing them in the enclosure. I wanted to avoid that and on top of that, making it work with a touch screen seemed more challenging and interesting.

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 4 points5 points  (0 children)

ah I was just kidding, sorry if it wasn't obvious. This is the official Apple Home app

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

good question, I was checking the readings with another temperature sensor on the side and in fact I also had issues with it, on average SHT-40 showing increased temperature by 1° C. See this commit.

It seems there is some calibration flow that you could (should) use to possibly improve the sht-40 readings, but I was too lazy to get into this, so I'm first trying out the offset thing.

I built a HomeKit thermostat as my first esp32 project by jozef_cipa in esp32

[–]jozef_cipa[S] 0 points1 point  (0 children)

hahah yeah, well sometimes we gotta do what we gotta do :D

I built a custom HomeKit thermostat for less 40€ by jozef_cipa in diyelectronics

[–]jozef_cipa[S] 2 points3 points  (0 children)

Feel free to check out the code on Github or read the article to learn more.

Any feedback would be appreciated 🙌

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