Bike Wheel Induction Safety Light

bike safety light

It's a wheel spoke mountable safety light for your bike that doesn't need batteries. Ever. It also has smart on/off function. Light turns on when you start moving and turns of about 5 seconds after you stop moving.

Parts list

  • (1) Neodymium magnet 2x
  • Dimensions: Diameter from 10 to 12mm, thickness from 4 to 10mm.
  • (2) Spoke mount left - 3d printed part
  • (3) Coil housing 2x - 3d printed part
  • (4) Spoke mount right - 3d printed part
  • (5) Universal magnet mount upper - 3d printed part
  • (6) M3 X 35 screw and a nut
  • (7) Universal magnet mount lower - 3d printed part
  • (8) Magnet housing screw - 3d printed part
  • (9) Locking nut - 3d printed part
  • (10) Adjustment screw - 3d printed part
  • (11) 5 mm white LED
  • (12) 1000µF, 16V capacitor.
  • (13) 1 k Ohm, 1/4W resistor
  • (14) Diode bridge
  • How to make one:
  • http://www.instructables.com/id/AC-to-DC-converterdiode-bridge/  (you can use 4001, 4148... diodes).
  • (15) 24V relay coil (Coil resistance should be aprox. 650 Ohms)
  • (16) Main housing - 3d printed part

Visit the instructable; http://www.instructables.com/id/Bike-wheel-induction-safety-light/