IR Remote Controlled Motorized Potentiometer – Arduino Compatible

  • Rajkumar Sharma
  • 428
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  • Tested

This is an Infrared Remote controlled motorized potentiometer controller. It’s an open-source project built on the Arduino platform and compatible with Arduino IDE for custom programming. The project consists ATMEGA328 microcontroller, IR sensor, L293D motor driver, ALPS Motorized potentiometer, a connector for Arduino programming, etc. The L293D H-bridge drives the potentiometer motor, 2 Parallel direction pins are used to change the motor direction which moves the POT in a forward or reverse direction.

Note: Motorized Potentiometers are built with a highly reliable linear potentiometer, with a slip clutch, geartrain, and motor in a single panel mount assembly which can be manually adjusted.

Arduino Pins

  • Digital Pin D2 >> IR Sensor,
  • Digital Pin D5 >>Motor Direction IN1+IN3,
  • Digital Pin D6 >> Motor Direction IN2+IN4

Components

  • U1 IR Sensor
  • U2 ATMEGA328 Micro-controller
  • U3 Motor Driver
  • CN3 Programming Connector
  • CN2 Potentiometer Connection
  • CN1 Power Input 5 To 6V

Arduino Code and IR Remote

  • Arduino Code is available as a download below
  • Switch A and Switch C of IR Remote Controls Motor Direction.
  • User May modify this code as per requirement
  • The project is compatible with Spark fun IR Remote COM-1489.
  • Any IR Remote with 38Khz frequency will work with this project

More info about Spark fun IR Remote

Any IR Remote Can work with this project, to learn more….

Programming the project with Arduino IDE

Use CN3 for Boot-Loader & Arduino Programming. More details here:

Bootloader Programming Connections

Code Upload Connections

Features

  • Supply Input 5-6V DC @ 100mA
  • PCB Dimensions 67.47 x 44.77 mm

Schematic

Parts List

NOQNTY.REF.DESC.MANUFACTURERSUPPLIERSUPPLIER PART NO
11CN12 PIN MALE HEADER PITCH 2.54MMWURTHDIGIKEY732-5315-ND
22CN2,CN38 PIN MALE HEADER PITCH 2.54MMWURTHDIGIKEY732-5321-ND
32C110uF/16V SMD SIZE 1210MURATA/YAGEODIGIKEY
44C2,C3,C5,C60.1uF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
52C7,C822PF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
61D11N4007 SMDDIODEDIGIKEYS1MBDITR-ND
71MG1MOTORIZED POTALPSMOUSER688-RK16812MG099
86R1,R2,R3,R4,R5,R610K 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
91R71M 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
101U1TSOP34438 OR TSOP1838VISHAYDIGIKEYTSOP34438-ND
111U2ATMEGA328TQPF-32MICROCHIPDIGIKEYATMEGA328PB-AURCT-ND
121U3L293DSTDIGIKEY497-2936-5-ND
131X116MhzECS INCDIGIKEYX1103-ND
141C4100uFAVX CORPDIGIKEY478-1718-1-ND

Connections

Potentiometer Layout



Gerber View

Photos

Video

L293D Datasheet

l293

PCB

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