The four-segment red/blue-LED bar-graph displays are unique. Each bar-graph display comprises one red and one blue LED in the same bar (Figure 2 ). Each LED has its own anode and cathode connections, ...

The Mini Single Bar Graph Display is a universal display containing a 10-LED bar graph to indicate the vehicle’s battery status.

Take a gander at the Giant LED bar graph which [Chunky Hampton] recently completed (from this image we don’t think the nick name suits him). It’s simple both mechanically and electrically, but we love ...