system
February 4, 2015, 12:44am
1
I am trying to figure out how I am going to power, control and run 2 of these motors:Standard Gearmotor - 303 RPM (3-12V) - ROB-12147 - SparkFun Electronics
I want to be able to control the speed and direction of each motor. I have an Arduino UNO R3.
Questions:
How will I have to wire the sucker up?
Do I need any motor controllers/Shields or Integrated Circuits like an H-Bridge?
If I do need a motor shield could I make my own from a prototyping board and how?
Hi.
see here well documented.
I bought another small motor driver, this time a module with 2 L91110 H-bridge chips. These dual L9110 H-bridge modules can be found for 3-4$ on Ebay or from Chinese webshops. The module has 2 L9110 IC's, so it can control 2 DC motors or 1 stepper...
"The L9110 works with voltages from 2.5 to 12V and can give a continues current of 800mA. With a maximum peak current of 1.5-2A. More then enough for a small DC motor."
Do no power the motor ( driver ) with your arduino, use external power for the motor.
Other driver could work, better/worst, but by this way you take it easily.
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Stall current at 12 volts is 0.5A although manufacturers can display misleading info.
If true u could use a cheap l9110s driver with max 0.8 ampere current output.