I need your help to make my project.
In first i'm sorry. I'm french so my english is not very good.
About my project. I work for an escape game and we want add interractivity.
For this i use 3 arduino.
Arduino 1 with mfrc522 to read 4 rfid. When it's OK, 1 relay open the door. This sketch work perfectly and we need to add play song during the open door.
Arduino 2 with 6 hx711 (load capacity) to detect a load on each Stone. When each Stone detect a load in same time i need to start an other séquences with 3 electric cylinder (2 to open a dome, and one to up the "communion table" with 1er strip led with chase.
And arduino 3 with ultrasonic sensor to make a proximity sensor.
Each sketch is OK but my question is.
How to link this arduino to node red ?
I tried with serial but with 3 arduino doesn't work, i feel i can put only 1 arduino because when i change the serial port only 1 arduino can connect.
I tried with arduino in and arduino out but the state of each arduino stay at "connecting"
So in first i'm block here.....
After i need to know how to communicate each sketch with node red.
For exemple arduino on usb1, name calendar, read 3 rfid and when you are finish play this song and go to launch the sketch of arduino 2 with 6 hx711. When each load capacity detect a changé of 5 kg for exemple, launch the séquences with electric cylinder.... Etc etc...
I'm very newbie with node red and little less with arduino...
What is your better way to make this ?
Thanks in advance !