I intend to build a monitoring system with several small arduinos transmitting data to a central master arduino that publishes it on a website. I believe I have 2 options>
1- What kind of communication scheme may I use to have several slaves with a one-way rf link to the single master?
2- Or are there any 2 way modules I can use so that the master requests the data one slave at a time?
This is my first time with RF and arduinos…