I'm making a better electric bike, taking ages but going well.
The first picture is the drill connection to the clutch sensor. The next two pictures are the clutch sensor. It appears to be a resistor. An object/pin presses down and slides across that C-shaped sensor when the drill clutch grip is turned.
Question: Will leaving those three wires unconnected risk some sort of floating input and waste electricity or damage the electronics?
I guess not.
Thanks.
FWIW...
On the hammer-drill setting, the resistance is over 100 K to either the red or the black wire. On the other settings, it ranges from 5K to 1K, inverted depending on whether going to the red or the black wire. In other words... Twisting the clutch causes the resistance to increase to the black wire while causing the resistance to decrease to the red wire.
The resistance remains about 5K between the red and the black wire.