Now my next project is going to be about Servo Motors and for that, I don't want to buy any shield or motor driver for Servos. So I have designed a circuit, to drive 12 servos at a time without any interruptions. I haven't got any Servos yet, well my order is shipped already...Keeping that aside lets head down to the connection..
The Screenshot was taken from a circuit designed by me at tinkercad.com.
HiWatt Battery (Standard 9 volts battery blue and white coloured)
SG90 Servo Motor
(6v 400mah max) (Resistance of each of them is 1.4kohm, when connected power and ground of multimeter)
Arduino (Required amp is 40*12)
The circuit Explanation:
The Orange wires of servos are signal wires connected to the pins of Arduino.
A 750 ohm resistor is connected to the positive terminals of each motor, from which, voltage is regulated for the motor.
The motor grounds have been connected to the ground of the battery.
Ground of Arduino has been connected to the ground terminal of the battery. So now, ground of the battery and the Arduino is same.
All the motors are connected in parallel connections with 750 ohm resistors at the positive terminal of each motors
So now my question is, How many servos will I be able to run when I power them parallel-ly using a standard 9 volts battery (HI-WATT, Blue and white one), if no, Which will be the best battery for doing it?
I need to run 12 Servos uninteruptedly.
Thanks for your precious time....