Hi everyone, I’m currently working on a project that involves monitoring a reed switch over a long distance of about 200-300 meters, with a large hill in between, which means there’s no direct line of sight. The challenge here is to find reliable 900MHz transmitter/receiver gear that can handle this distance effectively. I’ve tried searching for options, but it seems like the 900MHz range isn’t as common or supported as the 2.4GHz range, which is a bit frustrating.
I came across some FrSky XJT 2.4GHz combo packs, which are known for their decent range and high power output. While they are 2.4GHz, I wonder if they could still work for my setup, especially since I only need to transmit data twice a week using a deep-sleep ESP8266 module. I’m considering modifying one of these units to output a PWM signal for the reed switch. Does anyone have experience with these units or know if they could be adapted for this purpose?
Another idea I had was to look into radio spectrum management regulations, but I’m not entirely sure how that might affect my project. I’m also curious if there are any other long-range wireless solutions that could work better in this scenario. Any insights or recommendations would be greatly appreciated!
If anyone has successfully set up a similar system or has tips on optimizing wireless communication over long distances with obstacles, I’d love to hear about your experiences. Let’s collaborate and figure this out together!