RV Surplus 
 Amazon's RV Store 
   

Notice: Click on the Disclaimer button prior to taking any action shown on this website.

Special Notice for European Union (EU) viewers. Due to the GDPR, you are NOT AUTHORIZED to access this website for any purpose whatsoever. Attempted access is a violation of US LAW.
See the disclaimer for more information.

Driver board construction Version B: RV Version.

The driver board for Version B includes a 5V power supply, an Atmel ATTiny85 microcontroller that controls the LED strip, and a rotary switch that provides mode selection. It is similar to version A but lacks the accelerometer.

The power supply itself is capable of around 1A, which is sufficient to power the 9 LEDs of the Cylon Eye LED strip. Even then, you should try to limit the distance between the Cylon Eye and driver board to 9ft or less.

The on-board rotary switch programs a voltage that is read by the ATTiny85 via one of it’s analog ports, which is further resolved to determine the mode (i.e. flash pattern) of the Cylon Eye. This flash pattern can be changed in programming, so any 5 patterns can be used as needed. However, the programming as downloaded will provide the following functions:

  • Hitch light (original function)
  • Cylon Eye (in Red or Green)
  • Marquee
  • Rainbow (demonstrates the full range of LED colors)
  • Demo – cycles through Cylon, Marquee, and Rainbow modes.

Construction of the circuit board requires downloading the construction packet as well as ordering a circuit board from OSHPark.Com.

You will also need to purchase the components. This is the recommended list for the components and sources:

Construction of the circuit board requires downloading the construction packet as well as ordering a circuit board from OSHPark.Com.

Order from OSH Park

The documentation package contains all of the necessary information to construct the board:

You will also need to purchase the components. This is the recommended list for the components and sources:

 


Note: A clickable list is in the documentation package.

 

End Panels: I had custom end panels made for the aluminum enclosure I used with this version. If you wish to replicate those panels, you can find templates HERE: Download Panels CP-1 and CP-2.

 

 

 

 

 


Last reviewed and/or updated Aug 19, 2025