(yeah, this is really old in tech years, but I post in the event someone stumbles upon this.) I actually tried the GPS suggestion. I was wrong about the error between two identical GPS's. It's quite large. Check out the other suggestion first.
@mfalkvidd said in idea: allow the present function to indicate if an echo will be sent:
To my knowledge, the MySensors library itself will send an echo when requested. There is no need to present if the node supports echo or not, echo is always enabled.
Now it is on github also : https://github.com/mysensors/MySensors/issues/1403
lwaga created this issue in mysensors/MySensors
MySensors GatewayW5100 example sketch do not compile with ATmega128 board