All four devices plus 4x5 display.
FB001: my first blinkenlights project, now defunct.
FB002: simple 5-LED blinker.
FB002
FB002 powered up
FB003: 4x5 matrix, connected to driver board.
FB003: display driver for 4x5 matrix.
FB003: 4x5 matrix.
FB003: a moment in time.
FB004
FB004, a clone of fb002 with a different LED configuration.
FB004, powered up.
FB005, a tri-color LED which cycles through a random sequence of colors and does other cool blinky stuff.
FB005
FB005, powered up.