I like to make circuit boards with parts that are often wired up on my
prototype boards. This is six 7-Segment displays, multiplexed together.
The board runs on 5V and it uses transistors and resistors to handle the
current, so a 5V microcontroller can drive the board with very little current
(it was designed for future use with a PIC microcontroller). The connection
strip has holes the same size as a prototype board for quick connection.
Documentation
For an almost exact replica, see the Metric Clock schematic.
