void setMotor(int in1, int in2, int en, int speed) if (speed >= 0) // Forward digitalWrite(in1, HIGH); digitalWrite(in2, LOW); analogWrite(en, speed); else // Backward digitalWrite(in1, LOW); digitalWrite(in2, HIGH); analogWrite(en, -speed);
BLYNK_WRITE(V0) int x = param.asInt(); /* use x */ BLYNK_WRITE(V1) int y = param.asInt(); /* use y */ blynk joystick
The widget operates by mapping the joystick's position to Virtual Pins , which act as logical data channels between the app and your hardware. : Split : Sends and values to two separate Virtual Pins (e.g., for and for ). void setMotor(int in1, int in2, int en, int
void loop() Blynk.run();
Why is this interesting? The "Separate" method is faster for the microcontroller to process, but "Merge" (V0) uses fewer datastreams. You now know the trade-off between processing power and data efficiency. The "Separate" method is faster for the microcontroller
The Blynk Joystick is a user interface element in the Blynk app that mimics a physical, analog joystick. It provides two-dimensional input—typically