/*
  lp_BLE_temp_GT832E_01
  This sketch sets up a Nordic BLE UART and sends the chip temperature once a second when connected
  (c)2022 Forward Computing and Control Pty. Ltd.
  This example code is in the public domain.
*/

#include <lp_BLESerial.h>
lp_timer tempTimer;
const unsigned long DELAY_TIME = 1000; // ms == 1sec
lp_BLESerial ble;

void setup() {
  ble.setName("Chip Temperature"); // set advertised name, default name is "Nordic BLE UART"
  ble.setConnectedHandler(handleConnection); // when a connection is made
  ble.setDisconnectedHandler(handleDisconnection); // when the connection is dropped or goes out of range
  ble.begin(); // start advertising and be ready to accept connections
}

void loop() {
  sleep(); // just sleep here waiting for a trigger
  while (ble.available()) {
    int i = ble.read(); // clear BLE recieve buffer and ignore
    // could add cmds there to send stored historical temps
  }
}

void handleTempTimer() {
  // send the current time and temp
  float temp = getChipTemperature();
  ble.print(millis());  ble.print(',');  ble.print(temp);  ble.println();
}

void handleConnection(BLECentral& central) {
  // could just start this in setup and leave running
  tempTimer.startTimer(DELAY_TIME, handleTempTimer);
}

void handleDisconnection(BLECentral& central) {
  // no real need to stop here, ble.print discards the bytes if not connected
  tempTimer.stop();
}