FireBeetle 2 ESP32-C6 immedaite disconnect

[letisoft]

Hello,

I have FireBeetle 2 ESP32-C6 board.
Even the basic server is not working (used all server examples).

Device is visible but when Android app (BLE Scanner) connects it drops immedialty with error 133 (I think it is time out ot service list)
Same device is OK with IDF

Any ideas?

Best regards:
V

[h2zero]

What Arduino core/Nimble version?

[letisoft]

Thank you very much for the quick reposne!
esp32:esp32 3.3.8 3.3.8 esp32
NimBLE-Arduino@2.5.0

V

[letisoft]

I am not sure, but it seems behaviour is not cositent. Aslo I have enabled debug in nimconfig.h but no debug is coming?

[letisoft]

Hello,

I can debug if needed, but will be great if you can point me to areas to check.
Best regards:
V

[letisoft]

I manged to get logs:
[ 5][V][esp32-hal-periman.c:235] perimanSetBusDeinit(): Dein=========== Before Setup Start ===========
Chip Info:

Model : ESP32-C6
Package : 1
Revision : 0.02
Cores : 1
CPU Frequency : 160 MHz
XTAL Frequency : 4es Bitfield : 0x00000052
Embedded Flash : No
Embedded PSRAM : No
2.4GHz WiFi : Yes
Classic BT : No
BT Low Energy : Yes
IEEE 802.15.4 : Yes

INTERNAL Memory Info:

Total Size : 431660 B ( 421.5 KB)
Free Bytes : 399884 B ( 390.5 KB)
Allocated Bytes : 25312 B ( 24.7 KB)
Minimum Free Bytes: 394896 B ( 385.6 KB)
Largest Free Block: 376820 B ( 368.0 KB)

Flash Info:

Chip Size : 4194304B (4 MB)
Block Size : 65536B ( 64.0 KB)
Sector Size : 4096B ( 4.0 KB)
Page Size : 256B ( 0.2 KB)
Bus Speed : 80 MHz
Flash Frequency : 80 MHz (source: 80 MHz, divider: 1)
Bus Mode : QIO

Partitions Info:

            nvs : addr: 0x00009000, size:    20.0 KB, type: DATA, subtype: NVS
        otadata : addr: 0x0000E000, size:     8.0 KB, type: DATA, subtype: OTA
           app0 : addr: 0x00010000, size:  1280.0 KB, type:  APP, subtype: OTA_0
           app1 : addr: 0x00150000, size:  1280.0 KB, type:  APP, subtype: OTA_1
         spiffs : addr: 0x00290000, size:  1408.0 KB, type: DATA, subtype: SPIFFS
       coredump : addr: 0x003F0000, size:    64.0 KB, type: DATA, subtype: COREDUMP

---

Software Info:

Compile Date/Time : May 3 2026 20:59:42
Compile Host OS : windows
ESP-IDF Version : v5.5.4
Arduino Version : 3.3.8

Board Info:

Arduino Board : DFROBOT_FIREBEETLE_2_ESP32C6
Arduino Variant : dfrobot_firebeetle2_esp32c6
Arduino FQBN : esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=160,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=verbose,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default
============ Before Setup End ============
[ 1560][V][esp32-hal-periman.c:251] perimanClearBusDeinit(): Deinit function for type UART_RX (2) cleared
[ 1560][V][esp32-hal-periman.c:251] perimanClearBusDeinit(): Deinit function for type UART_TX (3) cleared
[ 1560][V][esp32-hal-periman.c:251] perimanClearBusDeinit(): Deinit function for type UART_CTS (4) cleared
[ 1561][V][esp32-hal-periman.c:251] perimanClearBusDeinit(): Deinit function for type UART_RTS (5) cleared
[ 1561][V][esp32-hal-uart.c:715] _uartDetectPin(): RX: pin 17 -> UART0: currently [GPIO], attach=YES
[ 1562][V][esp32-hal-uart.c:715] _uartDetectPin(): TX: pin 16 -> UART0: currently [GPIO], attach=YES
[ 1562][D][esp32-hal-uart.c:845] uartSetPins(): Attaching pin 17 to UART0 as RX
[ 1563][V][esp32-hal-periman.c:160] perimanSetPinBus(): Pin 17 successfully set to type UART_RX (2) with bus 0x4081492c
[ 1563][V][esp32-hal-periman.c:235] perimanSetBusDeinit(): Deinit function for type UART_RX (2) successfully set to 0x42020e58
[ 1564][D][esp32-hal-uart.c:849] uartSetPins(): Attaching pin 16 to UART0 as TX
[ 1564][V][esp32-hal-periman.c:160] perimanSetPinBus(): Pin 16 successfully set to type UART_TX (3) with bus 0x4081492c
[ 1565][V][esp32-hal-periman.c:235] perimanSetBusDeinit(): Deinit function for type UART_TX (3) successfully set to 0x42020d1e
[ 1565][I][esp32-hal-periman.c:141] perimanSetPinBus(): Pin 12 already has type USB_DM (38) with bus 0x40818150
[ 1566][I][esp32-hal-periman.c:141] perimanSetPinBus(): Pin 13 already has type USB_DP (39) with bus 0x40818150
Starting NimBLE Server
D NimBLEDevice: Starting NimBLE-Arduino 2.5.0
I NimBLEDevice: NimBLE Started!
I NimBLEDevice: NimBle host synced.
D NimBLEDevice: Initialized
D NimBLEAdvertising: >> Advertising start: duration=0, dirAddr=NULL
D NimBLEService: >> start(): Starting service: UUID: 0xdead
D NimBLEService: Adding 1 characteristics for service 0xdead
D NimBLEService: << start()
D NimBLEService: >> start(): Starting service: UUID: 0xbaad
D NimBLEService: Adding 1 characteristics for service 0xbaad
D NimBLEService: << start()
D NimBLEServer: Skipping characteristic or descriptor registered with unknown service
D NimBLEServer: Skipping characteristic or descriptor registered with unknown service
D NimBLEServer: Skipping characteristic or descriptor registered with unknown service
D NimBLEServer: Skipping characteristic or descriptor registered with unknown service
D NimBLEServer: Skipping characteristic or descriptor registered with unknown service
D NimBLEServer: Service registered: 0xdead, handle=14
D NimBLEServer: Characteristic registered: 0xbeef, def_handle=15, val_handle=16
D NimBLEServer: Descriptor registered: 0x2904, handle=17
D NimBLEServer: Service registered: 0xbaad, handle=18
D NimBLEServer: Characteristic registered: 0xf00d, def_handle=19, val_handle=20
D NimBLEServer: Descriptor registered: 0xc01d, handle=22
primary service
uuid 0x1800
handle 1
end_handle 5
characteristic
uuid 0x2a00
def_handle 2
val_handle 3
min_key_size 0
flags [READ]
characteristic
uuid 0x2a01
def_handle 4
val_handle 5
min_key_size 0
flags [READ]
primary service
uuid 0x1801
handle 6
end_handle 13
characteristic
uuid 0x2a05
def_handle 7
val_handle 8
min_key_size 0
flags [INDICATE]
ccc descriptor
uuid 0x2902
handle 9
min_key_size 0
flags [READ|WRITE]
characteristic
uuid 0x2b3a
def_handle 10
val_handle 11
min_key_size 0
flags [READ]
characteristic
uuid 0x2b29
def_handle 12
val_handle 13
min_key_size 0
flags [READ|WRITE]
primary service
uuid 0xdead
handle 14
end_handle 17
characteristic
uuid 0xbeef
def_handle 15
val_handle 16
min_key_size 0
flags [READ|WRITE|READ_ENC|WRITE_ENC]
descriptor
uuid 0x2904
handle 17
min_key_size 0
flags [READ]
primary service
uuid 0xbaad
handle 18
end_handle 22
characteristic
uuid 0xf00d
def_handle 19
val_handle 20
min_key_size 0
flags [READ|WRITE|NOTIFY]
ccc descriptor
uuid 0x2902
handle 21
min_key_size 0
flags [READ|WRITE]
descriptor
uuid 0xc01d
handle 22
min_key_size 0
flags [READ|WRITE|WRITE_ENC]
D NimBLEAdvertising: setAdvertisementData: 02 01 06 0e 09 4e 69 6d 42 4c 45 2d 53 65 72 76 65 72 05 03 ad de ad ba
D NimBLEAdvertising: << Advertising start