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read the below comment, they could help you.
yes, you can
I can't see anything wrong, everything that can be understood from the photos are fine. I advice you to separate back part from the others and try to test it using above L298 circuit diagram and try to run your motors manually. The problem may be solved.
No, It should not be zero.
yes and just end points used for powering, midpoints a just for fastening battery holder to the pcb. you can ignore them.
when you connect vcc to the l298 inputs leds glowing because the leds are connected the the l298 inputs and pic outputs. pic can turn leds on or off so the pic program works correctrly and connectiong from pic to leds are correct, leds glow when you connect vcc to l298 inputs so connection for l298 to leds are ok and so connection from pic to l298 is ok too. when you connect vcc to l298 inputs and motors are not working it means that your l298 does not power the motors try applying power to your motors and test them, check output power of you l298 when applying vcc to its inputs by a voltmeter. send me the photos of you boards.
yes, (+) --> +3V, (-) --> -3V
no, the PIC activates the motors.
I just have the photos that exists here, solder terminals with the same name together. The circuit diagram of L298 motor driver (you can find it in above comments) can help you a lot.
picture with white background
If the LEDs light up it means the PIC works check L298 connections, test it by applying 5V to its inputs.
Beside L Sensor
HiTech C, mikroC for PIC, PIC Basic Pro, ..., Just search the internet for best. C is more similar to java.
As I mntioned you must edit the progrm.
This robot follows any line (black or white) no switch needed. BTW you can change the PIC code to have a customized robot, you can program anything you want. Without the code it is just 4 sensors, 2 motors. The code defines the relation of sensors to motors action.
Just connect LS on the front board to LS on the bottom board with a piece of wire. Take a look at the PDF file of PCB drawings.
Solder + of your battery holder to +3V on the bottom board, and + on the top board.Solder - of your battery holder to -3V on the bottom board, and - on the top board.Solder + on the back of bottom board to to + on the rear board.Solder - on the back of bottom board to to - on the rear board.IGNORE +1.5V, -1.5V and 0V terminal they are not connected to anywhere.
No, the circuit supply is 6V. The power comes from ends of battery holder and its mid-pins only used for fastening it.
Use a faster motor & gearbox. Less gears, less power, more speed.
Both work same. The code is written in Basic language, and all variables and symbols names are obviousse. The symbols are ti micro pins. Other parts of code that you don't understand is for configuring PIC and you don't need them for Arduino. Only parts that you understand is enough.
You can use any microcontroller you want, design a new circuit for your arduino and change the code for it, it's very easy!
You must set RTS or DTR by the program that uses the serial port.
Just use battery holder ends. (posetive pole is +3V and negetive pole is -3V) I marked others (+1.5V, -1.5V, 0V) just for fastening battery holder.
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