Hi I want to build a driver for 3 LED diodes. They are to be controlled by
2 LED diodes on the front panel of the computer (hdd and power). The behavior of those three leds is to be follownig:-red diode on the panel ON: diode 1 ON
-red and green diode ON: diode 2 ON
-both diodes off: diode 3 on
I designed a circuit, based on 7402 chip (4xNOR)
Now I want to build such cirtcuit, but based on transistors, and i'm a noob in this topc. If anyone would give me some suggestions (or schematics :)) i'd be gratefull [voltage of the diodes on the front panel is 2V, The whole circuit should be powered with +5V]