“JavaBot” LINE FOLLOWER ROBOT from Java, Indonesia
by Tahan Prahara | August 18th, 2009.
The line follower robot with wireless video camera.
I have designed it just for fun. First I want to know how the line sensor work. I used comparator IC using LM339, two H-bridge sensor using eight transistors, FCS9013, and four transistors, FSC 9012. For the sensor you can use LED and LDR as the light receiver. I changed the LDR sensor to IR sensor. I built this robot using only the analog comparator and IR sensor, no microcontroller. This is smart idea and very cheap approach.
You can download this PCB FILE (ExpressPCB file)
Figure 1: main layout and sensor layout.
Components:
R1, R7, R13, R14, R15, R16 – 330 1/4W +/-1%
R2, R3, R4, R5, R6, R8, R9, R10, R11, R12 – 10K 1/4W +/-1%
R17, R18, R19, R20 – 150 1/4W +/-1%
VR1, VR2 – 20K-50K
Led1, Led3 – LED(red) 3mm Led
Led2, Led4 – LED(green) 3mm Led
Optocoupler – 2 piece
Q1, Q2, Q3, Q4, Q5, Q8, Q9, Q12 – FSC 9013
Q6, Q7, Q10, Q11 – FCS 9012
U1 – LM 339
Battery 9 volt – 1 piece
Motor DVD dc 5Volt – 2 pieces
Tank toys for mechanic and wheel – 2 pieces
Figure2: JavaBot, my first line follower robot without the microcontroller.
There are two line styles, white line on the black floor and black line on the white floor.
If you use black line on the white floor, you can set the robot if the Right-Sensor is on the dark side or black line and Left-Sensor is on the floor it will go to forward (by swap polarity of the motor). If the Right-Sensor is on the floor and Left-Sensor is on the black line it will go to backward.
Figure3: Attach the wireless video camera to the JavaBot.
This project by Tahan Prahara, prahara_satria@yahoo.co.id
August 27th, 2009 at 4:10 pm
hello
this is very good project and mostly used in final projects
Brijesh Arya
EmTech Foundation
September 17th, 2009 at 5:48 am
bobo wala schematic
December 4th, 2009 at 3:08 pm
can u give full details of this project.Because i give it name for my final year project.
January 24th, 2010 at 8:57 pm
hi
i’m very much interested in doin this project
so kindly can you give the full details of the project including circuit diagram and pcb layout
really this is very interesting
agugrg@gmail.com
February 3rd, 2010 at 11:24 pm
i really liked ur project very much can u give the details about it
February 6th, 2010 at 11:54 am
hi
i’m very much interested in doin this project
so kindly can you give the full details of the project including circuit diagram and pcb layout
really this is very interesting.
February 6th, 2010 at 11:59 am
hi
i’m very much interested in doin this project
so kindly can you give the full details of the project including circuit diagram and pcb layout
really this is very interesting.
plz send on my id-dhananjaygaya88@gmail.com
February 10th, 2010 at 7:13 pm
hi . this s really cool . can u pl send the project details especially the pcb layout to my mail id ?
February 10th, 2010 at 7:14 pm
hi . this s really cool . can u pl send the project details especially the pcb layout to my mail id ? mohancarthik@gmail.com
February 20th, 2010 at 11:18 am
i like your project plz give me some details about it
March 11th, 2010 at 1:14 pm
sir i wanna to complete the project on flying robot plz send me detail…