// Program for esp32 to read data sent by attiny1614 via uart
// created by Jans Hendry
// Universitas Gadjah Mada, Indonesia
// Kamakura Node, Japan
// fab academy MIT - 2022

char temp[100]; // temporary variable
int inc = 0; // incrementation value
const int RX2 = 16; // second RX of UART
const int TX2 = 17; // second TX of UART

void setup(){
  Serial.begin(9600); // first serial to see result in monitor
  Serial2.begin(9600, SERIAL_8N1, RX2, TX2); // second serial for device communication
}

void loop(){
  while(Serial2.available()){
    char sdt = char(Serial2.read()); // read from serial the character
    Serial.print(sdt); // directly display the read out
    temp[inc] = sdt; // store value one by one
    inc += 1; // increment
    if (sdt == '\0'){
      Serial.println("");
      inc = 0; // reset increment value
    }
  }
}