Is it possible to power the 'DFRobot Arduino Motor Shield (L293) (SKU: DRI0001)' with a external source, not through the arduino board ?
With a 8 cell 9,6V rc-racing car battery pack ?
I use the Arduino Duemilanove.
- The first problem i have no manual about the shield.
- I have found informations in the internet about the board.
The says the board takes the power and pwn signals to control the
motors direct from the arduino board
I have no idea how i can change this to battery power !
The DFRobot page has a Contact button. Let them know that the Manual link is crap.
The shield takes direction and pwm signals from the Arduino, not power.
Can you at least post a better picture of the shield you have? A top view would be nice.
The picture:
http://www.yerobot.com/forum/index.php?action=dlattach;topic=4.0;attach=12;image
DFRobot Arduino Shields Manual:
There is an area on that board labeled PWR IN. That would be PoWeR in. As in, that's where you connect the external battery that powers the motors.
Manual:
The Motor shield is powered directly from Arduino. It is strongly advised that use external power supply to power the Arduino instead of the USB power supply.
Arduino Motor Schematics:
Hello! Have reached any conclusions? I'm having the same problem with
this shield, I do not know if I can connect the motors of the Tamiya twin-motor (3v) and if I can use the PWR IN input for an external battery, such as the 2A version of this shield (Arduino_Motor_Shield__L298N___SKU_DRI0009_-DFRobot)
"PWRIN[ch65306] The motors can be powered by external power supply when the motor current exceeds the limits provided from the Arduino. The swith between external and Arduino power is implemented by two jumpers.
PWRIN: External Power
VIN: Arduino Power"
:-/ :-/
The L293 takes his 5V Logic Supply Voltage from the Arduino through his Vss Pin16.
I think the motor Supply Voltage is connected to his Pin8.
Through VIn on the motorboard. But Vin is connected to the 5V on the board.