It has jet to fail I thought about using two modules on different positions on the board to give me receiver diversity. This was unnecessary up until now as my board is huge (old windsurfer). I could control the throttle for my sister on the other side of the river (30 to 35 meters maybe) with my phone from the shore. It failed when she went further upstream, but she floated back
The responsiveness is ok for me, but I have not tested the latency to give exact numbers. I see that wifi when in bidirectional mode, so not sending direct frames without ack, is not the ideal solution for this.
That’s quite a project you got going there. I like your solution, espescially the integrated GPS would be nice. I wanted a really compact solution that can be coded quick&dirty. And with mechanical design on a remote I have a few hours into this myself this week and I am currently printing. It takes quite long to CAD something in an ergonomic hosing that’s not only round but with multiple curves.