//
// hello.t1616.echo.ino
//
// tiny1616 echo hello-world
//    115200 baud
//
// Neil Gershenfeld 12/22/19
// Cosmetic edits by Jason Goodman 3/3/2021
//
// This work may be reproduced, modified, distributed,
// performed, and displayed for any purpose, but must
// acknowledge this project. Copyright is retained and
// must be preserved. The work is provided as is; no
// warranty is provided, and users accept all liability.
//

#define max_buffer 25

static int index = 0;
static char chr;
static char buffer[max_buffer] = {0};

int LED = 10;                     // LED connected to digital pin 10 (pin 12)
int Button = 12;                  // Button connected to digital pin 12 (pin 14)

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

   pinMode(Button, INPUT);        // sets button as input
   pinMode(LED, OUTPUT);          // sets LED as output
   }

void loop() {
   if (Serial.available() > 0) {
      chr = Serial.read();
      Serial.print("hello.t1616.echo: you typed \"");
      buffer[index++] = chr;
      if (index == (max_buffer-1))
         index = 0;
      Serial.print(buffer);
      Serial.println("\"");
      }

   if (digitalRead(Button)==HIGH){
      digitalWrite(LED, HIGH);
      delay(100); // Wait for 1000 millisecond(s)
      digitalWrite(LED, LOW);
      delay(100); // Wait for 1000 millisecond(s)
      }
   }