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555 LED Bicycle Indicators

3D printed bicycle turn and braking indicators using a 555 timer, LEDs, and super capacitors.

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This project is a set of 3D printed bicycle turn and braking indicators using a 555 timer, LEDs, and super capacitors controlled by a joystick box with a clip to mount it to the handlebars.

See the Build Guide below for a step-by-step process on how to build your own. Also, please leave a comment below if you made your own or would like to see more projects like this one! Feel free to reach out to me if you have any questions.

Circuit Schematic.png

Use this schematic to assemble the stripboard and wiring

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  • 4 × 10F 2.7V Capacitor (Can be replaced with battery of 5-6V)
  • 1 × 555 Timer DIP IC & (optional) socket
  • 2 × 3.3K Resistor
  • 1 × 10uF Capacitor
  • 1 × 0.1uF Capacitor

View all 14 components

  • 1
    3D Prints

    First, 3D print the control box top and bottom as well as the indicator box front and back. While these are printing, you can start on assembling the circuit board as described in the next step.

  • 2
    Circuit Board

    Follow the Circuit Schematic and solder the circuit together as shown in the pictures. The Components section below details the required components and specifications of which of each electronic component to get, as well as the hardware used while creating the case. The resulting piece of circuit board should fit with some extra space into the control box bottom. Note: only solder the wires for the joystick, power LED, capacitors, switch, and cable (to the indicator lights), as we will be attaching those after the top of the control box is assembled.

  • 3
    Top of Control Box

    Next, push the joystick into the top of the case (you will probably need to remove the switch cap for this, and may need to break off any plastic pieces that stop it from sitting flush on the case). The pins should stick through the bottom just enough to solder, and the four metal clips should easily bend to tightly attach the joystick to the case. After this, push the LED in (you can use some glue or epoxy if it doesn't fit snugly) and attach the switch. Finally, solder the wires left as guided by the schematic and pictures.

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Discussions

Dan Maloney wrote 10/05/2020 at 21:07 point

Shoulda used a -- oh, wait...

  Are you sure? yes | no

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