Robot car with ESP32-CAM controlling L298N via RC receiver

Good looking plans. Keep us informed.

I have started looking at the code for this project.  I am sure I do not know what I am doing.  Can someone help me with this code please?

Is there a wat to see what the output pins values on the Arduino are? How to print to serial monitor.

I really do not know what I am doing and how to do it 🤣  

I have to thank dronebotworkshop.com for their contrubutions and making me scratch my head 🤣 🤣 

@xenophon Almost everyone starts by learning how to make an led blink. From there we attempt more and more complex tasks.

How many years have you been coding?

@xenophon 

There are online tutorials teaching Arduino C++. The output pin values at any time are always true or false (ON or OFF, 0 volt or 5 volt). You can turn them on/off with a command instead of using a finger to flick the switches. You can turn on the Serial Monitor from the Tools in the Arduino IDE menu. The Arduino can be used as a stand alone computer and you can use the IDE to write and run programs and its Monitor as an i/o device while learning Arduino C++.

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Posted by: @xenophon

Is there a wat to see what the output pins values on the Arduino are?

Yes, you can read them off the sketch ...

const unsigned int EN_A = 2;              // Motor A enable connects to pin 2
const unsigned int IN1_A = 4;             // Motor A input 1 connects to pin 4
const unsigned int IN2_A = 7;             // Motor A input 2 connects to pin 7

const unsigned int IN1_B = 8;             // Motor B enable connects to pin 8
const unsigned int IN2_B = 12;           // Motor B input 1 connects to pin 12
const unsigned int EN_B = 13;            // Motor B input 2 connects to pin 13

How to print to serial monitor.

You're already doing that ...

// Print to Serial Monitor
Serial.print("Ch1: ");
Serial.print(ch1Value);
Serial.print(" | Ch2: ");
Serial.print(ch2Value);
Serial.print(" | Ch3: ");
Serial.print(ch3Value);
Serial.print(" | Ch4: ");
Serial.print(ch4Value);
Serial.print(" | Ch5: ");
Serial.print(ch5Value);
Serial.print(" | Ch6: ");
Serial.println(ch6Value);

Do you have a more specific problem ?

@zander 0, Zero, Nil years 😆 

@will Thank you for your help.  I got it to work with an Arduino Uno and serial connection between RC and Uno.  Next.... Mounting a ESP32 cam.  Would love to use the ESP32-CAM as the main computer, but I dont think it has a RX pin.  Still have to look at it though.

If I can get the ESP32 to work, I want to put a police siren on some how.  Still looking into MP3 player for Arduino.

@xenophon 

If this is your first project, then you're looking at a very tough uphill battle trying to build a drivable car.

@xenophon Ok, now we know where to start. 

@xenophon Actually it has a few, check the random nerd for pinouts.

@xenophon Ummm, remember how much power an arduino pin puts out. Don't know, try thr esp32 site to understand the specs. Those sirens weigh a lot, take a huge amount of power so you will need a power Mosfet and a car battery to power the siren

@xenophon Let's start with blinking a led.

@xenophon If you plan on just copying code from youtube or dbws then your lack of experience won't be such a handicap, but if you plan on creating brand new code you should probably take a C coding course and then C++ course if you plan on writing library code. Nowadays there are lot's of resources to accomplish that for free in some cases. Much more efficient than when I learned using a typewriter.

@robotbuilder Thank you so much