Looking for technical details of RMT target: What is the IR carrier signal? (Trimble/Geodimeter)
I would like to build a custom target that can be tracked by the old dinosaurs Geodimeter 600 / Trimble 5600. I can't find information about the IR LED circuit used in the RMT targets. I would like to know the carrier signal of those IR lights. Maybe someone with an old RMT target can help me out? An oscilloscope and a photocell or directly tapping the IR LED should reveal the the carrier signal.
My plan is to use an ESP32 micro controller and IR LEDs to recreate the RMT signal, basically an RMT target in a tiny form factor, with a button and wifi connection to another ESP32 connected to the RS232 interface at the total station.
All the best,
I also looked at doing this a while back and decided that there were too many used ones on my shelf to make it make sense. I have been thinking that the S6 active target would make a more suitable effort, at least for me. I was thinking of using an oscilloscope, but, it is not my field of expertise
Ok, I knew the solution wasn’t going to be cheap tools. Now I know more of what is needed though. I am trying to imagine if you had asked me to survey your property with an Amazon total station ....
Norm, as you are making your own enclosures for the targets, do you happen to have one torn down or can you take one apart to snap some photos? Macro shots of the PCB would be cool.