(sorry for my poor english)
I need drive a lot of small dc motors(1.5v-5v), so I use a arduino with a 2 74hc595 in matrix for test. If I put there a led and a resistors, I can switch on and off each one without problem.
(Its similar to this diagram, but with two 74hc595, one for rows and athother one for columns):
Like I need drive the motors, not leds, I thinked about use a tip120, with a resistor beetwen and switch on/off each motor.
So if I put a circuit like this in each led position:
I put all the components but the motor don`t move. I put a multimeter and I can see 5v between the two motor´s conector.
I go to try to make a better schematics, because I dont know if I can be understand well (my english not help).
I need drive between 4000-5000 motors (yes, a lot, I know). Only a turn or a couple of turns each time. (8x8 or 9x9 74hc595 ).
I would to use motors and no servos because it`s more cheaper.
If someone knows a better way to do it, it would be highly appreciated.
Thanks for your help.
I need drive a lot of small dc motors(1.5v-5v), so I use a arduino with a 2 74hc595 in matrix for test. If I put there a led and a resistors, I can switch on and off each one without problem.
(Its similar to this diagram, but with two 74hc595, one for rows and athother one for columns):
Like I need drive the motors, not leds, I thinked about use a tip120, with a resistor beetwen and switch on/off each motor.
So if I put a circuit like this in each led position:
I put all the components but the motor don`t move. I put a multimeter and I can see 5v between the two motor´s conector.
I go to try to make a better schematics, because I dont know if I can be understand well (my english not help).
I need drive between 4000-5000 motors (yes, a lot, I know). Only a turn or a couple of turns each time. (8x8 or 9x9 74hc595 ).
I would to use motors and no servos because it`s more cheaper.
If someone knows a better way to do it, it would be highly appreciated.
Thanks for your help.