ESP32 jako BT programátor pro Arduino

Mikrokontroléry Arduino
1

Odešel mě HC05 jako BT programátor.
Udělal jsem narychlo programátor přes ESP32 a funguje to dobře.
Možná se to bude někomu hodit. Odzkoušeno na 328p a 2560.

//*****************************************************************************************
// Programator pres BT
//****************************************************************************************
#include "BluetoothSerial.h"                  // Include the Serial bluetooth library 
#define LED_BT 22                             // PIN ledky
#define RES_BT 23                             // PIN resetu pro programovany procesor
bool ledBtState = false;                      // blik led
bool MasterConnected;                         // true = pripojeno / false = nepripojeno
String device_name = "ESP32-BT-Programer";    // jmeno
unsigned long previousMillis;                 // neco pro blikani LEDky
#define baud 115200                           // speed UART

// Bluetooth je?
#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)                           
#error Bluetooth is not enabled! Please run make menuconfig to and enable it
#endif
// Serial Bluetooth JE?
#if !defined(CONFIG_BT_SPP_ENABLED)
#error Serial Bluetooth not available or not enabled. It is only available for the ESP32 chip.
#endif

BluetoothSerial SerialBT;                     // nastaveni object SerialBT

// Bt_Status callback function
void Bt_Status (esp_spp_cb_event_t event, esp_spp_cb_param_t *param) {

  if (event == ESP_SPP_SRV_OPEN_EVT) {                    // 
    MasterConnected = true;                               // 
    pinMode(RES_BT,OUTPUT);                               // 
    digitalWrite(RES_BT, LOW);                            // 
    delay(100);                                           //
    digitalWrite(RES_BT, HIGH);                           //
    pinMode(RES_BT,INPUT);                                //
  }
  else if (event == ESP_SPP_CLOSE_EVT ) {                 //
    MasterConnected = false;                              //
    digitalWrite(LED_BT, LOW);                            //
  }
}

void setup() {
  pinMode(RES_BT,INPUT);
  pinMode(LED_BT,OUTPUT);
  Serial2.begin(baud);
  
  SerialBT.register_callback (Bt_Status);
  SerialBT.begin(device_name);
}

void loop() {
  if (MasterConnected) {
    if (millis() - previousMillis >= 250) 
    {
    if (ledBtState == false) 
    { 
      ledBtState = true;
    }
    else 
    {
      ledBtState = false;
    }
    digitalWrite(LED_BT, ledBtState);
    previousMillis = millis();
    }
  }
  while (Serial2.available()) 
  { 
    SerialBT.write(Serial2.read());
  }
  while (SerialBT.available()) 
  { 
    Serial2.write(SerialBT.read());
  }

esp32_bt_programer.pdf (16.9 kB)

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