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Topic: Motor shield voltage (Read 472 times) previous topic - next topic

dt85344

I have a motor shield on an Arduino UNO and when I activate the program the motors do not run properly. They are 9volt motors and only re cieving 5.6 volts. I have 9volts supplied to the external power on the shield and the jumper remuvedfrom the power pins. Is there a way to get 9volts out for each of the motors.

CrossRoads

Where is the 9V coming from - a square battery?
If you are not seeing 9V, the battery is either drained, or the motors take too much current.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

dt85344

9volt power supply the voltage at the external power conecter on the shield remains at 9volts, motor 1 2 3 &4 drops to 5.6 when the motor is activated.

CrossRoads

Got a spec on the motor?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

dt85344

No no spec on the motors thought the shield would take care of the curent problem. Guess I need to run them with  relays.

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