Using the joystick to control the differential steering of a tracked robot. Robotic Arm Control: Using for base rotation and for gripper extension. Camera Pan/Tilt: Controlling servos for a security camera. Lighting Control: Mapping to HSV color values to control RGB LED strips. Troubleshooting
void sendJoystickData() // Periodic tasks go here Blynk.virtualWrite(V10, sensorValue);
// 5. Move the metal servoPan.write(panPos); servoTilt.write(tiltPos); blynk joystick
// Joystick virtual pins #define JOY_X V0 #define JOY_Y V1
The Blynk Joystick shines in countless project categories. Here are some popular applications: Using the joystick to control the differential steering
Note: Virtual pins work similarly but must be declared in Blynk 2.0 web dashboard.
The code above works, but it is "blocking." If you move the joystick rapidly, the servos might jitter because parsing strings takes time. Lighting Control: Mapping to HSV color values to
// Control motors based on values (e.g., Forward if y > 200) Use code with caution. Copied to clipboard GitHub Joystick Example Joystick | Blynk Documentation
Blynk is an IoT platform that enables you to create a mobile app to control your Arduino, Raspberry Pi, or other IoT devices. It's a popular platform among makers, hobbyists, and professionals alike.
In February 2026, Blynk introduced an AI Assistant that can generate complete IoT projects—including dashboards, datastreams, alerts, and code—from natural language descriptions. You can describe what you need, and the platform builds it automatically.