Hydraulic brakes 2 pin sensors
- Thread starter Peter.Bridge
- Start date
They're all over Aliexpress. The 2-pin ones have a red connector. I can't say which ones work the best. If you want branded ones, they're a lot more expensive than the Aliexpress ones and probably fake anyway:
All you need is a magnet and a reed switch stuck to any brakes. You have 2 wires: One is ground and the other is held at 5v by a pull-up resistor. If the two wires are shorted by a switch or anything else, the signal wire gets pulled to ground and the CPU in your controller cuts power. There are all sorts of ways you can fix a switch to your brakes, though a reed switch is simplest. Look through the forum - there are loads of photos of people that used those stick-on reed switches and magnets. In one case, I nicked a switch from a cable ebike brake and made a little bracket to hold it because it was so easy on this brake:
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