I am having trouble compiling the example of ESP32C3

[xlhhll]

I am having trouble using the example of ESP32C3. The used sketch is shown as follow:

Code: Select all

#include <BluetoothSerial.h>

#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif

BluetoothSerial SerialBT;


#define BT_DISCOVER_TIME	10000


static bool btScanAsync = true;
static bool btScanSync = true;


void btAdvertisedDeviceFound(BTAdvertisedDevice* pDevice) {
	Serial.printf("Found a device asynchronously: %s\n", pDevice->toString().c_str());
}

void setup() {
  Serial.begin(115200);
  SerialBT.begin("ESP32test"); //Bluetooth device name
  Serial.println("The device started, now you can pair it with bluetooth!");


  if (btScanAsync) {
    Serial.print("Starting discoverAsync...");
    if (SerialBT.discoverAsync(btAdvertisedDeviceFound)) {
      Serial.println("Findings will be reported in \"btAdvertisedDeviceFound\"");
      delay(10000);
      Serial.print("Stopping discoverAsync... ");
      SerialBT.discoverAsyncStop();
      Serial.println("stopped");
    } else {
      Serial.println("Error on discoverAsync f.e. not workin after a \"connect\"");
    }
  }
  
  if (btScanSync) {
    Serial.println("Starting discover...");
    BTScanResults *pResults = SerialBT.discover(BT_DISCOVER_TIME);
    if (pResults)
      pResults->dump(&Serial);
    else
      Serial.println("Error on BT Scan, no result!");
  }
}

void loop() {
  delay(100);
}

Then I would put the mistake information.

Code: Select all

Arduino:1.8.15 (Windows 10), 开发板："ESP32C3 Dev Module, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 160MHz (WiFi), QIO, 80MHz, 4MB (32Mb), 921600, None"

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `.L0 ':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:651: undefined reference to `esp_spp_deinit'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `_stop_bt':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:674: undefined reference to `esp_spp_disconnect'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `.LVL35':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:116: undefined reference to `esp_bt_gap_resolve_eir_data'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `get_name_from_eir':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:118: undefined reference to `esp_bt_gap_resolve_eir_data'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `.L0 ':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:177: undefined reference to `esp_spp_write'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:141: undefined reference to `esp_bt_gap_set_pin'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:595: undefined reference to `esp_bt_gap_register_callback'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `_init_bt':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:588: undefined reference to `esp_spp_register_callback'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:608: undefined reference to `esp_spp_init'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:625: undefined reference to `esp_bt_gap_set_cod'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:641: undefined reference to `esp_bt_gap_set_security_param'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `BluetoothSerial::disconnect()':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:907: undefined reference to `esp_spp_disconnect'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `BluetoothSerial::discover(int)':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:953: undefined reference to `esp_bt_gap_set_scan_mode'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:956: undefined reference to `esp_bt_gap_start_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:962: undefined reference to `esp_bt_gap_cancel_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `BluetoothSerial::discoverAsyncStop()':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:950: undefined reference to `esp_bt_gap_cancel_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `.LVL318':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:324: undefined reference to `esp_bt_gap_set_scan_mode'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `esp_spp_cb':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:259: undefined reference to `esp_spp_start_srv'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:271: undefined reference to `esp_spp_disconnect'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:339: undefined reference to `esp_spp_connect'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:350: undefined reference to `esp_spp_disconnect'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `std::_Function_base::~_Function_base()':

c:\users\lyon\appdata\local\arduino15\packages\esp32\tools\riscv32-esp-elf-gcc\gcc8_4_0-esp-2021r1\riscv32-esp-elf\include\c++\8.4.0\bits/std_function.h:256: undefined reference to `esp_bt_gap_set_scan_mode'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `BluetoothSerial::discoverAsync(std::function<void (BTAdvertisedDevice*)>, int)':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:981: undefined reference to `esp_bt_gap_start_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:983: undefined reference to `esp_bt_gap_start_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `.L0 ':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:413: undefined reference to `esp_bt_gap_cancel_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: libraries\BluetoothSerial\BluetoothSerial.cpp.o: in function `esp_bt_gap_cb':

C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:414: undefined reference to `esp_spp_start_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:397: undefined reference to `esp_bt_gap_cancel_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:397: undefined reference to `esp_spp_start_discovery'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:480: undefined reference to `esp_bt_gap_pin_reply'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:485: undefined reference to `esp_bt_gap_pin_reply'

c:/users/lyon/appdata/local/arduino15/packages/esp32/tools/riscv32-esp-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld.exe: C:\Users\Lyon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0-rc1\libraries\BluetoothSerial\src/BluetoothSerial.cpp:493: undefined reference to `esp_bt_gap_ssp_confirm_reply'

collect2.exe: error: ld returned 1 exit status

exit status 1

为开发板 ESP32C3 Dev Module 编译时出错。

I would be grateful if anyone can help me ! ! !

[ESP_Sprite]

I'm not a Bluetooth expert, but my guess would be that Bluetooth Serial is a BT Classic protocol. The ESP32C3 only supports BTLE.

[chegewara]

I'm not a Bluetooth expert, but my guess would be that Bluetooth Serial is a BT Classic protocol. The ESP32C3 only supports BTLE.

Thats correct.

[xlhhll]

I'm not a Bluetooth expert, but my guess would be that Bluetooth Serial is a BT Classic protocol. The ESP32C3 only supports BTLE.

Wow, this should be the reason. Thank you !!!