Make a 4WD RC Car
make your RC car. Most of us wants to make our own custom made RC cars so we could be able to add different motors with high RPM or Low RPM with high torque or less torque for off roads and on roads we can also be able to change the motor drivers as per motors requirement possibility are many as you are the main creator of your project.So lets get started with what will you require to make this car .
The parts you will require is given below i got mine from www.nisangrobotics.com
Parts List:-
2 – Arduino UNO (or other version if you have any)
2 - NRF24L01 modules(This are your Transmitter and Receiver pair)
1 – breadboard
1 – 12V battery ( I am using a Lead Acid battery 1.3 AH)
4 – Wheels and Motors (I am having 12V motors check your motors specification before applying 12V)
1 – L293D Motor driver
1 – small box for remote
4 – Switches
4 – NiMH/NiCd battery (for remote)
4 – 10k resistors
1 - 5v regulator
2 - 470uF 16v
2 - 0.1uF monolithic
Some jumper wires and double side tape
Getting All Your Parts and Getting Started
As now we have got all the parts now lets get start building it.
See the image for more information.
Bulding the Chassis
Now comes the chassis part of your robot your chassis will have the main parts like
1. Clamp
2. Motors and Wheels
3. acrylic sheet
And
1. Now drill holes in acrylic sheet so that you can attach the clamp see the images for reference
2. after drilling the holes and attaching the clamp connect the motors to the clamp once done fix the wheels to the motors so it could look like a car now.
Motor Driver and NRF24L01 Modules
Motor Driver
We will be using L293D as a motor driver because its easy for wiring and supports this motor
see the diagram connect the motors as given above if you want to get more information on L293D motor driver you can get more info on the below link i have learned from this.
www.instructables.com/id/Control-your-motors-with-L293D-and-Arduino/
NRF24l01
After you connect the motors comes the radio part,we are using NRF24L01 for transmitting and receiving of data.This pair are transceivers means you can receive and transmit the data from 1 module to another.
Approx range of this module is 100 meters as per info the range depends on the module you use their are some modules which can give upto 1000+ meter of range.Before using this module you have to install the libraries
you can get them here
https://github.com/maniacbug/RF24/archive/master.zip
save this library in library folder of arduino software
Note:- Connect the NRF24L01 to 3.3V or it may get damaged
Adding Electronics on Car
Now adding electronics to the RC car
After connecting the motors to motor driver and the NRF24L01 module. We will now have to connect them to the car now see the above images and connect the things as given above.
Remote Assembling
Remote is the main part for controlling your robot you should use the proper box which fits in your hand.The box i have used is from a sweets box which was perfect to fit all the electronic parts into it.
Use proper battery 4 - NiMH or NiCd battery put the module out of the box for better range.
see the above images and diagram for reference.
Note:- Connect the NRF24L01 to 3.3V or it may get damaged
Programming the Robot
As we have now finished with the assembling part lets start programming it.
The car and remote code is given below:-
Dont forget to see the video :p