Arduino Deuminalove+XBee sheild to drive DC motor

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi ,

can anyone recommend me an alternative solution to a Motor sheild for Arduino to drive 3 dc motors(4.5v)

like a pwm motor controller or some sort?

2

What are you trying to do? Do the motors need to turn both ways (forwards+backwards)?

You can buy loads of boards to drive DC motors that are not Arduino shields, for example:

http://cgi.ebay.co.uk/L293D-H-Bridge-PCB-DC-Motor-Control-L293D-AVR-PIC-/250546812966?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item3a55c0f826#ht_3226wt_913

It depends on how much current you need per motor, for example, something like this can do 2A/motor:

http://cgi.ebay.co.uk/RK-L298-H-Bridge-PCB-L298-IC-Arduino-ATMEL-PIC-etc-/250674747690?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item3a5d61192a#ht_3305wt_913

You can use two of those boards and use PWM to throttle them.

3

Hi,

thanks for the reply. Im using the Deuminalove board and i need the motors to to work bi-directional ways(fwd and reverse) to drive my blimp.

I am short of time(2 weeks to go) so id appreciate what is the best motor driver/ option i could get from these websites :

www.littlebirdelectronics.com.au
www.toysdownunder.com.au

4

It would be very helpful as im worried about ordering the boards and shipping delays.

Whats the best option of doing my own circuit.Please help me out in this.

5

Use a DPDT solid state relay as a driver for the motor, and use a PWM output to control the relay. You can solder all this up on a seperate board without making a shield - just by plugging a few wires into the Duemilanove