Recent content by Holland

I recommend Starlink as well.

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Video demo   https://www.youtube.com/watch?v=Gl-Nofxb6I4

Required materials   ESP32 KOB electronic lock Relay STONE STWI070WT-01 touch panel display MFRC522 module Realized function 1. card registration. 2. username and password registration. 3. card swipe to unlock the electronic lock. 4. User name and password to unlock the electronic lock...

The refrigerator can be cooled, can't it? I guess it should be the compressor at work. So in the process of simulating cooling I think a compressor should be needed. I intend to control the components working through the serial screen and Raspberry Pi, and control the temperature of the...

I built my own MQTT server, how to display the collected device data on the backend web page?

I'm recently working on a new project about smart fridge display and I made UI interface for it. But I I don't know much about refrigerators, maybe someone can recommend me a suitable and cheap compressor module?    

Perhaps there is a recommendation for LCD or IPS?

Sorry for the late reply, the desktop tablet you mentioned looks very smart and advanced, and the system based on the cloud has a great potential to be used for just that.   Maybe it's better to start getting these smart devices after I'm familiar with the smart home assistant.   Thank you for...

This is shocking, you are a great guy, I don't know anything about HA, I have done simple home automation with just microcontrollers, like using Arduino or STM32.

Ok, I will learn the HA system first and then the panel after that, thanks for the reply!

Hi guys, I have done simple small projects for fire alarm, water level detection and obstacle detection, I now have an idea to combine them together, I can control and detect home safety in real time through LCD touchscreen display. But I've done it all before with microcontrollers, I don't know...

Hello everyone, I am new to this forum Holland, I am an engineer and I like to do some interesting projects on my own, I hope to learn more here and I hope to share my projects.