[Question] How to use Bluedroid instead of NimBLE in Arduino IDE (v3.3.0)? #11822
Description
Board
ESP32-S3 Dev Board
Device Description
ESP32-S3 Dev Board
Hardware Configuration
Nothing
Version
v3.3.0
Type
Question
IDE Name
Arduino IDE
Operating System
Window 11
Flash frequency
80MHz
PSRAM enabled
yes
Upload speed
921600
Description
Problem
After updating to Arduino-ESP32 v3.3.0, the default BLE stack is NimBLE.
My code uses Bluedroid-specific APIs (e.g. startExtScan), so it no longer compiles.
In v3.2.1 this worked fine.
Question
In Arduino IDE, is there a way to switch the BLE host stack from NimBLE back to Bluedroid?
For example, using build_opt.h, platform.txt, or some other configuration?
What I tried
- Added -DCONFIG_BT_BLUEDROID_ENABLED=1 -DCONFIG_BT_NIMBLE_ENABLED=0 in build_opt.h → did not work.
- Edited platform.txt extra_flags → still NimBLE is forced.
- I know PlatformIO or ESP-IDF as component can solve this, but I want to stay with Arduino IDE if possible.
Environment
- Arduino IDE 2.x
- Arduino-ESP32 v3.3.0
- Board: ESP32-S3
- OS: Windows
Sketch
/*
BLE5 extended scan example for esp32 C3 and S3
with this code it is simple to scan legacy (BLE4) compatible advertising,
and BLE5 extended advertising. New coded added in BLEScan is not changing old behavior,
which can be used with old esp32, but is adding functionality to use on C3/S3.
With this new API advertised device wont be stored in API, it is now user responsibility
author: chegewara
*/
#ifndef CONFIG_BLUEDROID_ENABLED
#error "NimBLE does not support extended scan yet. Try using Bluedroid."
#elif !defined(SOC_BLE_50_SUPPORTED)
#error "This SoC does not support BLE5. Try using ESP32-C3, or ESP32-S3"
#else
#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEScan.h>
#include <BLEAdvertisedDevice.h>
uint32_t scanTime = 100; //In 10ms (1000ms)
BLEScan *pBLEScan;
class MyBLEExtAdvertisingCallbacks : public BLEExtAdvertisingCallbacks {
void onResult(esp_ble_gap_ext_adv_report_t report) {
if (report.event_type & ESP_BLE_GAP_SET_EXT_ADV_PROP_LEGACY) {
// here we can receive regular advertising data from BLE4.x devices
Serial.println("BLE4.2");
} else {
// here we will get extended advertising data that are advertised over data channel by BLE5 devices
Serial.printf("Ext advertise: data_le: %d, data_status: %d \n", report.adv_data_len, report.data_status);
}
}
};
void setup() {
Serial.begin(115200);
Serial.println("Scanning...");
BLEDevice::init("");
pBLEScan = BLEDevice::getScan(); //create new scan
pBLEScan->setExtendedScanCallback(new MyBLEExtAdvertisingCallbacks());
pBLEScan->setExtScanParams(); // use with pre-defined/default values, overloaded function allows to pass parameters
delay(1000); // it is just for simplicity this example, to let ble stack to set extended scan params
pBLEScan->startExtScan(scanTime, 3); // scan duration in n * 10ms, period - repeat after n seconds (period >= duration)
}
void loop() {
// put your main code here, to run repeatedly:
delay(2000);
}
#endif // SOC_BLE_50_SUPPORTEDDebug Message
C:\Users\Lighten\AppData\Local\Temp\.arduinoIDE-unsaved2025812-27280-vj6jdv.ulxd\BLE5_extended_scan\BLE5_extended_scan.ino:11:2: error: #error "NimBLE does not support extended scan yet. Try using Bluedroid."
11 | #error "NimBLE does not support extended scan yet. Try using Bluedroid."
| ^~~~~
exit status 1
Compilation error: #error "NimBLE does not support extended scan yet. Try using Bluedroid."
Other Steps to Reproduce
No response
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.