I am tying to figure out how to make a "wireless button" for an arduino.
I need a handheld remote with a single button to reliably trigger an arduino 100-200m with little latency. The arduino is in control of a winch that is used to run cheetahs, so the trainer stands with the ceetah and the lure on one end of the runway, and can trigger the winch from there.
The thing is, that the winch is not a fixed speed, nor is the cheetah, so the trainer needs to turn it on and off depending on the need during the run.
Here is a video of that winch in action on a smaller runway. You can hear the motor being triggered - this needs to be fairly latency free otherwise the cheetah gets the lure and its all a mess, or (if the motor is on too long) the lure is too far away and he loses interest.
Thanks for your response, I thought about that, but could not find reliable data on those modules and their range. They are marketed with anywhere between 10m and 2km range, for all modules users complain they get less than 100m reliably
any suggestions which module would give me reliable 200m+? I don't need high data rates or anything, as I'm only transferring a single "on" or "off" singal, that should help range a bit?
My guess is that you are not in a city with high noise issues.
If your in the country with good LoS and little noise you should get good range.
also since you just have a switch you don't have to worry much about data loss issues since the signal can be repeated quickly to help overcome signal interference.
Still I would get a pro module with advertised 1 mile range so that you are well inside that range .