After testing out a wheel switching arrangement (metal plate attached to a wheel that rotatated to cover the sensor to activate) it wasn’t able to reliably make contact with the area. The sensor is on the inner curve of the seat.
The solution we are going for is a ‘key’ method. A metal plate that can be inserted over the sensor to activate the bidet.
The plate will be guided into place between the new seat that is being glued into the bidet.
I’ve also had a play with the remote to get an idea of what the buttons do.
… and a great weekend was had by all