Remote car with servos not working (pls help!)

Using Arduino Project Guidance
1

Hello I was wandering if anyone could help me with a remote control car that I was making. I used pieces from other codes and when I got to testing it didn't work. Pls help.

Here is the code for the controller:

#include <ServoTimer2.h>

#include <SPI.h>

#include <RHReliableDatagram.h>

#include <RH_NRF24.h>

// Define the Joystick Connections
int joyY(0);
int joyX(1);

/*
  int joyposY = 512; //to use with the actual joystick
  int joyposX = 512;
*/

int valY;
int valX;

// Define addresses for radio channels
#define CLIENT_ADDRESS 1
#define SERVER_ADDRESS 2

// Create an instance of the radio driver
RH_NRF24 RadioDriver;

// Sets the radio driver to NRF24 and the client address to 1
RHReliableDatagram RadioManager(RadioDriver, CLIENT_ADDRESS);

// Define the Message Buffer
uint8_t buf[RH_NRF24_MAX_MESSAGE_LEN];

ServoTimer2 myservo1;
ServoTimer2 myservo2;

//******************************************************************************

void setup() {

  // Setup Serial Monitor
  Serial.begin(9600);

  // Initialize RadioManager with defaults - 2.402 GHz (channel 2), 2Mbps, 0dBm
  if (!RadioManager.init())
    Serial.println("init failed");

  myservo1.attach(3);
  myservo2.attach(4);

}

//******************************************************************************

void loop() {

  if (valX < 460) // turn left
  {
    valY = analogRead(joyY);
    valY = map(valY, 0, 1023, 0, 180);
    valX = analogRead(joyX);
    valX = map(valX, 0, 1023, 0, 90);
    myservo1.write(valY - 2 * valX); // servo 1 slows
    myservo2.write(180 - valY);
    delay(15);
  }
  else if (valX > 564) // turn right
  {
    valY = analogRead(joyY);
    valY = map(valY, 0, 1023, 0, 180);
    valX = analogRead(joyX);
    valX = map(valX, 0, 1023, 0, 90);
    myservo1.write(valY);
    myservo2.write((180 - valY) - 2 * valX); // servo 2 slows
    delay(15);
  }

}

//******************************************************************************

And here is the car code:

#include <ServoTimer2.h>

#include <SPI.h>

#include <RHReliableDatagram.h>

#include <RH_NRF24.h>

// Define the Joystick Connections
int joyY(0);
int joyX(1);

/*
  int joyposY = 512; //to use with the actual joystick
  int joyposX = 512;
*/

int valY;
int valX;

// Define addresses for radio channels
#define CLIENT_ADDRESS 1
#define SERVER_ADDRESS 2

// Create an instance of the radio driver
RH_NRF24 RadioDriver;

// Sets the radio driver to NRF24 and the client address to 1
RHReliableDatagram RadioManager(RadioDriver, CLIENT_ADDRESS);

// Define the Message Buffer
uint8_t buf[RH_NRF24_MAX_MESSAGE_LEN];

ServoTimer2 myservo1;
ServoTimer2 myservo2;

//******************************************************************************

void setup() {

  // Setup Serial Monitor
  Serial.begin(9600);

  // Initialize RadioManager with defaults - 2.402 GHz (channel 2), 2Mbps, 0dBm
  if (!RadioManager.init())
    Serial.println("init failed");

  myservo1.attach(3);
  myservo2.attach(4);

}

//******************************************************************************

void loop() {

  if (valX < 460) // turn left
  {
    valY = analogRead(joyY);
    valY = map(valY, 0, 1023, 0, 180);
    valX = analogRead(joyX);
    valX = map(valX, 0, 1023, 0, 90);
    myservo1.write(valY - 2 * valX); // servo 1 slows
    myservo2.write(180 - valY);
    delay(15);
  }
  else if (valX > 564) // turn right
  {
    valY = analogRead(joyY);
    valY = map(valY, 0, 1023, 0, 180);
    valX = analogRead(joyX);
    valX = map(valX, 0, 1023, 0, 90);
    myservo1.write(valY);
    myservo2.write((180 - valY) - 2 * valX); // servo 2 slows
    delay(15);
  }

}

//******************************************************************************

Pls help I have been trying to get it ti work for ages and I have got no results. I am using two nRF24LO1s , two DSO4-NFC servos , and two arduino nanos. I have the joystick to control it swapped out with two 10K potentiometers until it arrives.

Thank you!

Jethro Crooke

2

Why has the controller got servos?

3

the car has the servos

4

The code for the controller has servo code, but no radio code.

5

the controller has the code for the car on it and it controls the car(or at least that's what I saw on a video on YouTube)

6

could you tell me what to do for the radio code

7

sorry I'm a bit hopeless when it come to transmitting and receiving

8

No, because I don't understand what you're doing.

9

What are the pots being read in the car code?

10

I am trying to make a remote control car controlled by a joystick. the turning mechanism will be one of the two servos slowing down.

11

I am not sure what you mean

12

do you mean what type?

13

Maybe watch the video again?

14

ill try that and see if I can see any code that I missed out

15

I look at this:

And here is the car code:
.

void loop() {
.
.
.
  if (valX < 460) // turn left
  {
    valY = analogRead(joyY);
    valY = map(valY, 0, 1023, 0, 180);
    valX = analogRead(joyX);
    valX = map(valX, 0, 1023, 0, 90);
[/quote]
16

they are the X and Y axis of the joystick

17

I think the question is "why does the car have a joystick?"

(It's akin to my earlier question "Why does the controller have servos?")

18

I don't know all I did was change the dc motor codes to servo code

19

God night. Time to take on other questions.

20

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