float v = 0;
float a = 0;
char buf[50];

void setup() {
  Serial.begin(115200);
}

void loop() {
  v = random(0, 5600) / 100.0;
  a = random(0, 5000) / 100.0;
  Serial.print(v, 2);
  Serial.print(",");
  Serial.println(a, 2);
  delay(500);
}