• Alternate board designs
   
• Strip board layout

Pad1 -> Gnd
Pad2 -> +5V

The UFO Round LED Chaser is now available as a kit - see project page here

Download Schematic (PDF)

Schematic is common to both alternate designs

Download PCB artwork (PDF)

Download PCB artwork (PDF)

Stripboard layout

If you don't have access to PCB making equipment, here is a strip board layout sent to me by Gabriel Florea which you can use as a guide to make a round LED chaser.  Gabriel say's:
"I used 10mm high brightness green LED's (70,000 mcd), so I thought it will be maybe better to keep some distance between the LED's. I used 150 Ohm resistors instead of the 270 Ohm. In the attachment you will find my layout on a test-board, it is tested and it works fine"

Notes:

• Unlike the LED chaser on the main page, these designs don't have an on-board 5 volt regulator or ICSP header. The boards will require power from an external 5 volt regulated power supply. Alternatively you can power them from 3 x AA batteries.
   
• Since there is no reverse polarity protection diode pay special attention when connecting the power supply to the boards.