So whenever IR sensor detects any objects Pin 2 of Arduino will be high and based on that Relay will be turned on which is connected to Pin 7 of Arduino. Here we have connected IR sensor output pin to Pin 2 of Arduino. Complete Arduino Code with Demo Video is given at the end. To learn more about IR Sensor, Relay and DC Motor, you can go through following projects:Ĭode for this project is very simple. Further a DC Motor is connected to the Relay. In circuit, IR sensor Module output pin is simple connected to the Pin 2 no of Arduino and Relay Module’s input is connected to Pin 7 no of Arduino. This Geared DC Motor is ideal for small or compact Arduino Projects requiring high torque delivering 800 gf-cm and no-load speed of 1:48 at minimum power. Relay is further connected to DC Motor, so DC Motor will be ON whenever IR Sensor Detects any objects in front it.Ĭircuit of this IR Sensor controlled DC Motor with Arduino is simple as shown below: 1A Li Battery TP4056 Charging Module - Type C. Here IR sensor will detect any object in front of it and Arduino will read the IR Sensor’s output and make the Relay High. It functions perfectly, except that I would like the motor to turn in the opposite direction (which I want to change in my programming not mechanically). Here we will interface IR sensor with Arduino to control DC Motor. Hi there, I recently programmed and built a small radio-controlled car using an Arduino Uno, a small servo and a small 3V DC brushed motor. Today we are making a simple project with Arduino which uses three basic components that are IR Sensor, Relay Module and DC Motor. We have created many Arduino projects from basic interfacing projects to advanced robotic projects and IoT projects, you can check all of them in our website. So everyone try to use Arduino to make any project, as it is easy and having smooth learning curve. Please see below video: sketch 1 and then sketch 2 in action.Arduino has become the most popular Microcontroller among students and hobbyists in very less span of time. I want to add Button B into the code aswel (same sequence as A, but with shorter open position delay) Need advice on wiring/coding Button A to start the whole cycle A instead of having to use the reset button on my arduino chip. Turn off the motor (CLOSED FOR HIGH DURATION - not to repeat cycle *UNTILL Button A IS PRESSED AGAIN) Change the motor direction (CLOSE VALVE) (rotate CW) Turn off the motor (WAITING FOR 140ML TO FILL) Press button A to Turn on the motor (OPEN VALVE) (rotate ACW) Set encoder feedback signal pins to input mode:ĭirectionControl() //Direction of rotation based of High/Low PinMode(in2,OUTPUT) //Tells arduino that in2 pin is set to give the output PinMode(in1,OUTPUT) //Tells arduino that in1 pin is set to give the output PinMode(enA,OUTPUT) //Tells arduino that ENA pin is set to give the output Set all Motor A connection pins to output mode: #define ENCB 3 //Green wire feedback signal from encoder pin3 #define ENCA 2 //Yellow wire feedback signal from motor encoder to pin2 Int enA=5 //Pin 5 designated to motor controllers ENA port Int in2=6 //Pin 8 designated to motor controllers In2 port ) 2 wires to power the encoder (often labeled GND and 3.3V) 2 wires to send signal of position to the microcontroller (Arduino) (labeled as encoder output or C1 & C2) First you will connect 2 wires to power the encoder. FWIW there are zillions of RC cars with brushless motors and reverse capability. The DC motor with encoder has 6 wires : 2 wires to power the motor (Often labeled as : M1, M2, motor power. Fundamentally though, brushless DC motors are certainly reversible. M1/M2 Forward, M1/M2 Reverse recieve the PWM signals and correspond to the motor directions. A brushless fan as found in a computer contains the controller within the fan and that controller is only designed to spin the fan in one direction. They recieved a HIGH/LOW voltage from the Arduino. Int in1=7 //Pin 7 designated to motor controllers In1 port M1 Enable and M2 Enable are used to activate the bridges. Can some one help me edit/add a piece of code into Sketch 1 below, currently encoder not really being used to control anything to prevent overshoot //Motor A connections So I transferred some of the good bits from (sketch 2) into (sketch 1), now my code recognises the encoder wires/pin allocation. Tested the same code (Sketch 1) with the motor plugged in using ONLY + & - wires, the overshooting still occurs but not as noticeable as it starts randomly after a good 10-20 ish cycles.įollowed a video tutorial on how to wire the Encoder wires from the dc motor to arduino, in hope to implement ZERO overshoot, it allowed me to make the motor do sinusoidal wave pattern using the encoder / PID however, I don't understand this code enough to modify it to my needs. I purchased a similar motor which has a built in Encoder to try resolve the problem:.Problem i had was my 12v DC motor was overshooting positions after a few cycles, which is a big NO GO for my project it will damage the motor or valve components when system is fully setup.Found a code to make motor shaft do 1/4 turn (open), stop 5 seconds and then turn back (close).Thanks for all the recommendations so far.
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