Remote Control Servomotor | Arduino Tricks

Remote Control Servomotor

March 4, 2019

What is Servomotor :

A servomotor could be a mechanism positioner actuator or linear actuator that enables for precise management of angular or linear position, velocity, and acceleration. It consists of an acceptable motor coupled to a detector for position feedback. Servomotors square measure utilized in applications like AI, CNC machinery or automatic producing.

Servos square measure controlled by causing AN electrical pulse of variable breadth or pulse breadth modulation (PWM), through the management wire. there’s a minimum pulse, the most pulse, and a repetition rate. A servo motor will typically solely flip 90° in either direction for a complete of 180° movement. The management wire is chargeable for supply the electrical pulses. The motor turns to the acceptable direction as commanded by the pulses. once the motor rotates, it changes the resistance of the potentiometer and ultimately permits the feedback loop to manage the quantity of movement and direction.



How it is Working :

Servo motor works on the PWM principle suggests that its angle of rotation is controlled by the period of the applied pulse to its management PIN. primarily servo motor is created from DC motor that is controlled by a resistance and a few gears. RC Servos are accustomed to converting the electrical signal into polar or linear movement. once the signal is transmitted from the management to the automotive, this signal is decoded and sent to a servo. in keeping with this signal, the servo can rotate its drive shaft for a few degrees, and this rotation is translated into wheel steering.

IR Sensor Connect Servomotor :

While the solderless breadboard portion of the assembly leaves a very little area for confusion, the infrared portion on the perf board might have some extra info. First, the exposure below shows the IR and also the IR exposure transistor used and is provided to assist determine the cathode lead for the Servomotor and also the collector lead for the phototransistor; each area unit on the highest within the photo and adjacent to the flat section within the device housing. If you would like a lot of info, see the datasheet for every device. The remote some button I use to control the motor, Another button does not use this operation.

  • Next Button ( the motor run 0-90degree )
  • Previous Button ( run back only )
  • Pause Button ( Stop rotate )
  • 2 Button ( the motor rotate 60 deg. angle )
  • 6 Button ( the motor rotate 45deg. angle )
  • 8 Button ( 30deg. angle rotate the motor )
  • 5 Button ( back to 0deg. angle )


Required Parts :


  Purchase Link

  • Arduino Uno Board         [Purchase Links]          Ali-Express        Amazon
  • Project Board & Connecting Cable                       Ali-Express        Amazon
  • Servomotor                                                           Ali-Express        Amazon
  • IR Sensor                                                              Ali-Express        Amazon
  • Remote                                                                 Ali-Express        Amazon


Connection :


In this example, we’ll manage the servo victimization AN IR remote. will we will we are able to modify the speed that the servo moves and that we can choose individually planned angles for positioning the servo.

Here is AN illustration showing a way to wire up the devices. as was common we have AN IR receiver connected to +5v, ground, and pin 5. we tend to even have a servo with 3 wires. The red wire is +5v. The black or dark brown wire is ground and therefore the remaining wire sometimes yellow is that the signal wire that we’ve connected to pin nine though it might be any digital output pin.


Code Source

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