To solidify your understanding, here is a complete project using the HW-044.
Goal: Control a differential drive robot. Y-axis controls forward/back speed, X-axis controls turning, and the button toggles a headlight LED.
Hardware:
Code Sketch (excerpt):
// ... pin definitions and setup as before ...int deadzone = 20; // ADC counts int maxSpeed = 255;
void loop() int xRaw = analogRead(xPin); int yRaw = analogRead(yPin);
// Center calibration (replace with your values) int centerX = 512; int centerY = 512; hw-044 datasheet
int xDiff = xRaw - centerX; int yDiff = yRaw - centerY;
// Apply deadzone if (abs(xDiff) < deadzone) xDiff = 0; if (abs(yDiff) < deadzone) yDiff = 0;
// Map to motor speeds int leftSpeed = constrain(yDiff + xDiff, -255, 255); int rightSpeed = constrain(yDiff - xDiff, -255, 255); HW-044 Datasheet: A Complete Guide to the Dual-Axis
// Send to motor driver (analogWrite for PWM) // ... motor control logic ...
This code creates a classic "tank drive" response: pushing forward moves both motors forward, pulling back reverses, and moving the X axis creates differential steering. Arduino Uno HW-044 joystick L298N motor driver 2x
Here is a standard wiring diagram and code example to get your HW-044 running with an Arduino Uno.