– Adjusting pulse frequency: about 100Hz to 1.1 Khz(129 Hz to 1.28 Khz in this projects) – Cut off working when lower battery voltage: As setting at 11.5V for 12V and 23V for 24V battery. – There is over load current 15A or current limit with current flowing throw R11 and Q1 work to stop IC1 12V-24V PWM Motor controller circuit using TL494 and IRF1405įig:1 Schematic diagram of this projects. Myservo.– For Control speed motor 12V 150Wmax 15A. Val = map(val, 0, 1023, 0, 179) // scale it to use it with the servo (value between 0 and 180) Val = analogRead(potpin) // reads the value of the potentiometer (value between ) Myservo.attach(9) // attaches the servo on pin 9 to the servo object Int val // variable to read the value from the analog pin Int potpin = 0 // analog pin used to connect the potentiometer Servo myservo // create servo object to control a servo Controlling a servo position using a potentiometer (variable resistor) You could adapt the below “knob” example for use with the two pots in your joystick to control two servos.

You should look at the servo based cam pan/tilt setups that use two servos. i would like a variable speed and i have found a parallax 277800 2-axis joystick that i would like to use to control it through the arduino. I haven’t picked out any motors yet because i was going to see if there were any suggestions, all i want to do is to be able to attach a laser pointer to a platform that will turn left to right and point up or down.

So select the motor for the speed and power you require, then select a compatible H-drive shield or module and power supply and then get down to writing the sketch. Well then it sounds like you need a full H-drive module to control the motor rated to be able to handle the voltage and current demands of the motor you do end of selecting. I haven't picked out any motors yet because i was going to see if there were any suggestions, all i want to do is to be able to attach a laser pointer to a platform that will turn left to right and point up or down. What do you wish to use to control the motor, an arduino board running your sketch code, your just How fast can the change of forward/reverse/stop decision be. What is the voltage and maximum current draw for the motor?ĭo you wish to also be able to stop the motor?ĭo you require variable speed control on the motor or just full speed forward or reverse?

12-volt forward and reverse motor