Blynk.run();

⭐⭐⭐⭐ (4/5) Best for: Hobbyists controlling robots, pan-tilt cameras, or RC vehicles over Wi-Fi.

In traditional electronics, a physical joystick uses two potentiometers to measure movement along the X and Y axes. Blynk replicates this experience digitally. Within the Blynk app, the joystick widget allows users to send coordinate data (ranging from 0 to 255 or 1023, depending on configuration) to a microcontroller like an ESP8266, ESP32, or Arduino over Wi-Fi or Bluetooth. The primary advantage of the Blynk virtual joystick is convenience

Because the joystick sends data continuously, it is important to add logic to handle when the joystick is released (returns to center) to prevent motors from running indefinitely. 4. Common Applications