Bobamaker Deluxe Rangefinder stand-alone LED board

[MartinSivertsen]

Hi,

I'm in the process of painting up an ESB Boba Fett helmet made by Bobamaker (link), and these last few weeks I have been tinkering with making a self contained LED board for the Rangefinder (as the aluminium stalk is not hollow to draw wires through), so I can have some blinking LED's when the rangefinder is lowered.

The board is designed to fit inside the small cavity right where the red LED's are, beside the Perspex block.

I was planning to make this just for myself, but if it works as intended I can probably solder up a small batch of 5 to 10 boards if anyone is interested.
I haven't finished the design and ordered the boards yet, but I'll update this thread with the progress.

Contents:

• 2 x LR44 battery holders
• 2 x 5mm red LED's
• 3 x white SMD LED's - To provide the white light into the Perspex block. You can probably drill three holes in the Perspex block and insert "grain of rice" LED's where you solder the leads onto the pads of the SMD white LED's (removing the SMD LED's first)
• Rolling ball tilt switch
• MOSFET that gets "turned on" by the tilt switch
• 2 x 555 timer circuits
  • One to handle the blinking of the red LED's with where each LED is on for 0.5 seconds
  • One to create a PWM signal that dims the white LED's currently with a 50% duty cycle

Here are some images:

Schematic:

 

[dogbertwrldrulr]

That is a great design. Love seeing electronics at work!

FWIW, if you want to get a hollow stalk, they are available at the link below. I have the deluxe kit for the entire ear set if you want any pictures, close ups, or measurements (as much as I can).

Boba Fett Helmet Hollow Aluminum Rangefinder Stalk - MachineCraft Replicas

Precision machined aluminum Hollow Rangefinder Stalk for Boba Fett helmets. Hollow design allows wire passthrough for accurate electronics.

www.machinecraftreplicas.com

 

[MartinSivertsen]

That is a great design. Love seeing electronics at work!

FWIW, if you want to get a hollow stalk, they are available at the link below. I have the deluxe kit for the entire ear set if you want any pictures, close ups, or measurements (as much as I can).

Boba Fett Helmet Hollow Aluminum Rangefinder Stalk - MachineCraft Replicas

Precision machined aluminum Hollow Rangefinder Stalk for Boba Fett helmets. Hollow design allows wire passthrough for accurate electronics.

www.machinecraftreplicas.com

Thanks!

I have an ESB/ROTJ SE helmet kit with metal ears and hollow rangefinder stalk that I'm looking forward to starting with in the future, I'll go the traditional route with the electronics then, using the Honeywell switch in the ear, running wires up the stalk, grain of rice/wheat LED's in the Perspex channels, as etc.