How to Mount and Wire the Bumper Switch v2

Step 1: Gather the needed parts

  • Have the following parts ready:
    • (2) Bumper Switches v2
    • (4) #8-32 x 1/2" Screws 
    • (4) #8-32 Keps Nuts
    • (1) 5-64" Hex Key
    • (3) 4" Zip Ties
    • (1) Open End Wrench (optional)

NOTE: Mounting and wiring the Bumper Switches will be easier if the V5 Battery Clips are empty because the battery has been removed. 

Step 2: Position the Bumper Switches

  • Place two screws into each Bumper Switch above the VEX logo.
  • Position the two screws that hold each Bumper Switch in the third and fourth holes in from the ends of the backmost C-Channel beam.  

NOTE: The screws can also be positioned on both sides of the Bumper Switch for mounting with a different orientation or in other locations.

Step 3: Fasten the screws in place using the four Keps Nuts

NOTE: The screws should not be too tight because the plastic of the Bumper Switch can crack. 

Step 4: Lead the wires around the chassis

  • Lead the wire from left Bumper Switch next to the V5 Battery Clips. 
  • Lead the wire around the second battery clip on the side of the V5 Robot Brain with the Three Wire Ports.
    • Do not feed the wire through the C-Channel beam where the wheel is mounted.
  • Lead the wire from the right Bumper Switch directly back where the left Bumper Switch's wire is so that both connectors are on the side of the brain with the Three Wire Ports.

NOTE: The Bumper Switch's wires can be positioned wherever is best as long as they do not drag or get caught during operation.

Step 5: Use a Zip Tie to hold the left Bumper Switch's wire  

  • Thread a Zip Tie around the left Bumper Switch's wire in a good place on the C-Channel beam so that it will be kept out of the way of the battery.

NOTE: Do not fully tighten the Zip Tie until the wires have been connected to the brain.

Step 6: Use a Zip Tie to hold both wires in place above the battery clip

  • Thread a second Zip Tie around both the left and right Bumper Switches' wires in a good place above the battery clip so that they do not hang down or get in the way of other components.

NOTE: Do not fully tighten the Zip Tie until the wires have been connected to the brain.

Step 7: Use the last Zip Tie to hold the right Bumper Switch wire in place

  • Lead the right Bumper Switch's wire along the C-Channel beam and beyond the brain, and then back toward the Three Wire Ports. 
  • Thread the last Zip Tie around the doubled wire and through the C-Channel beam so that it can be kept out of the way of other components. 

NOTE: Do not fully tighten the Zip Tie until the wires have been connected to the brain.

Step 8: Connect the Bumper Switches to the Three Wire Ports and finish

  • Connect the left Bumper Switch's wire to Port A and the right Bumper Switch's wire to Port B. 
  • Tighten the Zip Ties fully so that they are secure and then cut off the excess plastic. 
  • Replace the V5 Battery into its clips and reconnect the battery to the brain. 

NOTE: A label (tape, stickers, etc.) can be used on a sensor, or any wired component, to note the port to which it is connected.