Hi all. So, in past projects I've sent data from remote sensors back to the base station using RF69 or LoRa radios. It has worked very well. But, now I'm working a project that requires a much simpler and less costly solution.
I just need to send a binary condition (i.e. 1/0, yes/no, open/close) from the remotes. I've seen forum posts from people using various cheap Chinese RF modules from eBay, etc. Some have had great success, others have struggled to get them working. So, I'm looking for devices recommendations from the former group.
Ideally, the solution would provide a single RX that could differentiate the signals coming from multiple (2 or 3) TXs and activate an individual I/O pin for each one. Maximum required range is 100 feet. Operation at 3.3V preferred.
Thanks for your help.