There are a lot of solutions regarding this topic, but I couldn’t find any specific using nodered and mqqt server.
I’ve implemented a door lock in my house with two rfid. One internal and other external. I also took out the padlock. The only way to open it is using a 12V over the coil.
For that I used an Arduino Uno, which I decided to upgrade to an ESP32 using MicroPython. From time to time, Arduino Uno freezes due Software Serial. ESP32 has 3 UART ports, which I hope can increase reliability.
Since it already has WiFi, I did a simple subscribe and a button to open the door as well. Get in and out with the smartphone. Unfortunately, that’s not safe at all. Mainly because of my kids.
My goal is to implement a field where you must feel a 6 digit pin and submit.
Esp32 check the pin and decide if open or not.
What do you suggest, as simple and direct solution for that?
I was just considering using form, but I still need to learn about How nodered deal with POST and so on. In other words, I need to be sure which is the best solution to guide the efforts for.