#1 Line Follower Robot. How it works?

Line follower robot is an Autonomous Robot that can take after a way. The way can be unmistakable like a dark line on the white surface (or bad habit verse). It is a coordinated outline from the information of Mechanical, Electrical and PC building (Programming with PC). The LDR (Light Dependent Resistor) or IR (Infrared) sensor based line robot configuration and manufacture method which continuously coordinates along the dark imprint on the white surface.

Brief Historyline_follower_sensor_array

In the mid 1800’s mechanical manikins were first inherent Europe, only for stimulation esteem. Furthermore, these were called robots since their parts were driven by linkage and cams furthermore, controlled by turning drum selectors. In 1801 Joseph Maria Jacquard made the following awesome change and created the programmed draw loom. The draw weaving machines punch cards what’s more, was utilized to control the lifting of string in fabric manufacturing plants. This was the first to have the capacity to store a system and control a machine. After that there were numerous little changes in apply autonomy.

The principal modern robots were Unimates created by George Devol and Joe Engelberger in the late 50’s and mid 60’s. The main patent was by Devol yet Engelberger shaped Unimation which was the first market robots. So Engelberger has been known as the “father of mechanical autonomy”. For some time the financial suitability of these robots demonstrated appalling and thing eased off for apply autonomy. However, the industry recouped and by the mid-80’s mechanical technology was back on track.

George DevolJr, in 1954 added to the multi jointed counterfeit arms which prompt the present day robots. Be that as it may, mechanical specialist Victor Scheinman added to the genuinely adaptable arm known as the Programmable Universal Manipulation Arm. In 1950 Isaac

Line Follower

Line Follower Robot is a machine that can take after a way. The way can be unmistakable like a dark line on a white surface (or the other way around) or it can be imperceptible like an attractive field.

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Line Follower Robots can be utilized to convey mail inside an office fabricating and convey medicines in a healing center. The innovation has been recommended for running transports and different mass travel frameworks, also, may wind up as a major aspect of self-ruling autos exploring the road. The line adherent can be utilized as a part of direction framework for mechanical robots proceeding onward shop floor. An illustration may be in a stockroom where the robots take after “tracks” to and from the racks they stock and recover from. A line supporter robot can be utilized as a part of military as spy children or in numerous other applications.

Hardware Design

The Robot contains two DC geared Motors, Microcontroller Board for auto controlling, Two IR sensor modules for detecting the Line. The IR sensor module has LM358 IC and One IR pair.

The robot which is have the capacity to take after a line on the ground without getting off the line excessively. The robot has sensors introduced underneath the front piece of the body and two DC motor drive wheels moving forward. A circuit inside takes information signal from sensors and controls the pace of wheels’ revolution. The control is done in a manner that when a sensor detects a dark line, the DC Motors eases off or even stops. At that point the distinction of turn velocity makes it conceivable to make turns.


Comparator 358 IC

The LM358 operation amps are utilized as a part of transducer enhancers, dc addition squares and all the traditional operation amp circuits which now can be all the more effectively executed in single power supply frameworks. Case in point, the LM358 operation amp can be straightforwardly worked off of the standard +5V power supply voltage which is utilized as a piece of computerized frameworks and will effectively give the obliged interface gadgets without requiring the additional ±15V force supplies



An infrared sensor is an electronic component, that discharges keeping in mind the end goal to sense a few parts of the environment. These sorts of sensors measures just infrared radiation, as opposed to discharging it that is called as a uninvolved IR sensor. As a rule in the infrared range, every one of the articles transmit some type of warm radiations. These sorts of radiations are imperceptible to our eyes, that can be identified by an infrared sensor.The emitter is just an IR LED (Light Emitting Diode) and the identifier is essentially an IR photodiode which is touchy to IR light of the same wavelength as that discharged by the IR LED. At the point when IR light falls on the photodiode, The resistances and these yield voltages, change in extent to the greatness of the IR light got.


Motor Controller

Basic DC geared motors need current over 250mA. There are numerous incorporated circuits like ATmega16 Microcontroller, 555 clock IC. Yet, IC 74 arrangement can’t supply this measure of current. At the point when the motor is straightforwardly associated with the o/p of the above ICs then, they may harmed. To defeat this issue, an motor control circuit is obliged, which can go about as an extension between the above motor and ICs (incorporated circuits). There are different methods for making H- Bridge Motor control circuit, for example, utilizing transistor, transfers and utilizing L293D.

We hope you enjoyed this session. In the next session we are going to learn assembling a line follower robot from RoboMart.com