I am experiencing linker errors while compiling my ESP32-S3 project using the PlatformIO environment. The error messages indicate multiple undefined references to Bluetooth functions, including esp_spp_connect
, esp_bt_gap_resolve_eir_data
, and several others related to Bluetooth Serial capabilities.
To resolve this issue, I have already attempted the following steps:
- Added the necessary library files to the
lib
folder. - Created a new project from scratch.
Despite these efforts, the errors persist. I would appreciate any guidance on how to properly link the required libraries or any additional steps I might need to take to resolve these linker issues.
platform.ini:
[env:esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
build_flags =
; -D CONFIG_BT_ENABLED
; -D CONFIG_BLUEDROID_ENABLED
-D CONFIG_BT_SPP_ENABLED
-D CONFIG_BT_BLE_DYNAMIC_ENV_MEMORY
-D BT_MODE_CLASSIC_BT
-D BT_MODE_BTDM
main.cpp:
#include <BluetoothSerial.h>
#include <Arduino.h>
BluetoothSerial SerialBT;
void setup() {
Serial.begin(115200);
if (!SerialBT.begin("ESP32_Device")) {
Serial.println("An error occurred initializing Bluetooth!");
} else {
Serial.println("Bluetooth Device is Ready to Pair");
}
}
void loop() {
if (SerialBT.available()) {
char incoming = SerialBT.read();
Serial.print(incoming);
}
}
Detailed error message content:rocessing esp32-s3-devkitc-1 (platform: espressif32; board: esp32-s3-devkitc-1; - Pastebin.com