uint8_t buffer[10] = { 0x01, 0x02, 0xFF, 0x7A, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88 };

char scratch[64] = "";
int nbValues = 10;

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

    snprintf(scratch, sizeof(scratch), "count: %d.\n",nbValues);
    Serial.println(scratch);
}

void loop() {
  // put your main code here, to run repeatedly:

}