7K ohm
12v dc to 3v dc
The resistance needed is1/(the current flowing through the resistance) ohms.
+12V, -12V, +5V, -5V, +3.3V +12V, -12V, +5V, -5V, +3.3V
+12V, -12V, +5V, -5V, +3.3V
12v, 3.3v 5v
+3.3v +5v -5v +12v -12v
+12V, -12V, +5V, -5V, +3.3V -5V is seldom used
There's a 12V and a 5V supply. The 5V is for the logic. The 12V supply is for the motor.
+12V, -12V, +5V, -5V, +3.3V
+12v,-12v, +5v, ,-5v, +3.3v and the one seldom used is -5v
+3.3 volts +5 volts, +12 volts -12 volts, and -5 volts but -5 is rare
-12v+12v+5v+3.3v