Analog Joystick Inaccurate Values Problem

Other Hardware Sensors
1

Hi everyone. I am new to Arduino programming and I am configuring an analog joystick (3.3V, overall 4 pinout) with Arduino mega 2560. Even with basic code to read analog values (working on online simulator like Wokwi), the values occur linearly no matter the position of the joystick. At 0 position without movement, the values surf from 0 to 1023 and back at both x and y position. I am having 3 similar joysticks with many other Arduino boards, and the problem still persists. Any idea why the readings could be such?

2

Welcome to the forum

Please post your sketch, using code tags when you do, and a schematic of your project. A photo of a hand drawn circuit is good enough as long as it shows how the components are connected and powered and the type of Arduino board that you are using

3 
const int xAxisPin = A1;
const int yAxisPin = A2;
int lastX = 0;
int lastY = 0;
void setup() {
  Serial.begin(9600);
}

void loop() {
  int currentX = analogRead(xAxisPin);
  int currentY = analogRead(yAxisPin);

  Serial.print("x= ");
  Serial.print(currentX);
  Serial.print("y= ");
  Serial.print(currentY);
  delay(5000);
}
4

Do you have the joystick ground terminal connected to Arduino's GND?

5

I await the schematic with interest

1 Like
6

only when nothing connected to analog input it reads sinusoidal in range 0 to 1023.

7

We need:
links to the joystick data sheet

A schematic showing the connections

8

Yes

9

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10

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11

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