Hi Max, there is still the rotating potentiometer shaft, on/off switch and charging port that needs to be addressed if making a standard remote waterproof. People had good success with their own hall sensor based triggers, not just here but also on the esk8 side, I liked this one: Simple 3D-printed NRF remote - Arduino controlled - ESK8 Electronics - Electric Skateboard Builders Forum | Learn How to Build your own E-board. So while it might be quicker to waterproof a standard RC remote somehow, I like the idea of a fully sealed Arduino based approach a lot more. It gives us full control of everything, we can enhance and display all sorts of other data on the remote too. Especially once we all retire these seaking escs and move on to the VESC6 
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