Hello some one can tell me how servo power pin work ?
Hi gchansou,
You have to connect power to the power terminal.
Here is a drawing that show the various connection.
sorry, i talk about servo power.
So is it a power out ? if i put 9 v in power in what it the power outside on servo power ?
The “Servo Power” is not an Output but an Input to power Servo that might be connected to the shield.
You can do a verification with a multimeter but it should be connected to the positive and negative pins.
you think to all the pins ?
so what is power in ? for the arduino board ?
Yes all the Positive and Negative pins. To isolate the powering as it most of the time require more than the Arduino can provide.
The Power In is most probably powering the Regulators and get power to the Arduino underneath.
This is not 100% clear and i can’t test it as i don’t have it on hand at the moment.
Ok thanks
Another question :
do you know how xbee module work ? it use witch pin: 0 1 that’s it ?
what is the voltage output by the shield for the xbee module ? 3,3 ?
Last: the voltage selector 3,3/5 is for ? the arduino bord if i use power in ?