Hmm, automating my parents' conservatory windows using one of these is turning out to be easier as well as slightly more time consuming than I anticipated.
It was super easy to automate the motors using a #DS18B20 temperature sensor on the device itself with their firmware.
But making it work with the original up/down switches does require some scripting, and stuffing everything into the wall box is just not possible.
I should not have left this job to the very last minute!
Hi everyone, in this video I connected a digital temperature sensor (DS18B20) to Commodore 64 and did some non-scientific measurements :) To make this work, I implemented a 1-wire protocol in the assembly. Enjoy :)
Today I'm going down the rabbit hole of DS18B20 chip fakes 🤨.
A quick test of a batch of fakes I bought here in Argentina (because those seem to be the only ones you can buy on the local market) revealed that they measure about -2 C with respect to a real Maxim DS18B20. What a 💩.
I trust the Maxim one because it is within 0.2 C of some Sensirion sensors I have here.
So, I searched on DigiKey for real DS18B20s to include on my next order... and what a surprise!
Almost all variants of the Maxim DS18B20 are out of stock (as expected), but they are now selling those chinese clones at almost the same price as the authentic ones! 🤦♂️
For those of you that want to know if the DS18B20s you have are the real ones or the fake 💩, there is very good information about the differences at https://github.com/cpetrich/counterfeit_DS18B20