Showing off my control box for my KATHI robot. Still a long way to go, but it's going. I need to 3D print the bezels and put them on to neaten up the controls. There's the Bluetooth transmitter, joystick, voice recognition module with speaker and mic, a little OLED status readout, and the sliders to control the robotic arm (MeArm). I can't seem to get my nRF24L01s to work (I think one of the units is bad. It stopped working after I hooked it up to a Mega and then it wouldn't work on anything), so I opted to go with two-way HC-05 communication. I don't like it as much, no real range and disconnects all the time. I'll change it back to radio as soon as I get my new nRF24 units.
Nice build. Thanks for sharing.
hj
Ordered two new nRF24L01 and now everything is working great! Printed and placed the bezels and things are looking better.