So from the topic above, can anyone guide me on how to do this? What I am trying to do is to display the clock on using the first arduino on the LCD. Then the first arduino will have an interrupt button that will switch to the next operation on the second arduino where the sensors are. I am just using temp, gas, and light sensors for this. So once the button is clicked, the LCD will switch over to the second arduino where sensors are suppose to display the data they acquire. My question is, what communication do I use for this? I2c, UART, and should I be doing 2 masters and one slave? or one master then multiple slaves? thanks!
Why make your project ten times harder for no reason ?
Can you do everything with a single Arduino board ?
What is the distance between all the parts ?
Yes, its ok to use one board ...
if you have a lot of sensors you can use Arduino Mega2560 instead of UNO
and connect one tft lcd to the board (2.4" or 3.5" with or without touch panel)
Try this link it will give you some ideas: https://create.arduino.cc/projecthub/projects/tags/weather You might even find what you are trying to creat. Your approach requires a lot of work in programming and defining your protocol for communications. A arduino is more then capable of doing a weather station with the proper hardware attached.
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