Question

DIGITAL IPWM- OO UNO ARDUINO POWER ANALOG IN LED ush button ::: :::: ::::: ::::: ::::: Motor Servos 9V replace with a 12v but same setup ) ..

Would this be the correct wiring for an external power source, 4 servos, a motor, a push button, and an LED?

Please help! I used thinkercad.com to simulate circuit.

Answer 1

-Servo motors are connected correctly to the external power source (i.e. 12V battery) in your diagram assuming 12 volt servos are used.

-The DC motor in your diagram is connected in series with the LED and resistor , This will divide the voltage at the 3 components and as a result the motor will not receive full 12 Volts. If your intention was not to give all 12 volts to the DC motor than your diagram is correct. If not, follow the diagram given below.

COUNO. .. . il

-In the above diagram the LED and DC motor are connected in parallel and the resistor is connected in series with the LED to protect the LED from high voltage damage. This way the DC motor will receive all 12 Volts, the LED and resistor will get 12 volts so the resistor should be of an appropriate value so that the LED receives correct voltage(mostly 3.3V) across it. When the button is pushed the motor and LED will run simultaneously.

-In a push button switch the two ends are connected and when the button is depressed all 4 points get connected as shown in the diagram below, this allows for a parallel connection as done in the above diagram.

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