DFRobot BLE4.1 매뉴얼 - 페이지 18

{카테고리_이름} DFRobot BLE4.1에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DFRobot BLE4.1 18 페이지.

FAQ

Q: How to deal with the situation cannot download?

A: There are many reasons for this problem:

1. Check basics, such as power supply, board type and COM port.

2. Bluetooth will occupy the serial port which will hamper uploading. Please disconnect the

current Bluetooth connection, and try again.

3. The device serial port may be occupied. Please disconnect all peripherals then recompile

and download again.

4. Arduino IDE may crashed. Please disconnect all Bluetooth (include smartphone), close all

Arduino IDE software, pull USB line, reopen and test.

5. Bootloader in the FireBeetle 328P may get lost. Please try re-uploading Bootloader of

ATmaga328p.

6. BLE 4.1 firmware may wrong. Please re-upload firmware and check the former chapter for

reference.

Q: How to choose board when the device manager shows Arduino UNO COM x after connected to

PC?

A: The COM name in default is Arduino UNO. Please choose the board according to

bootloader, e.g. choose Arduino Pro Mini 3.3V@8MHz for FireBeetle BLE4.1.

Q: How to deal with the Bluetooth ID number varies with connection?

A: The current Bluetooth ID number is defined with the connection order, ID1, ID2, ID3, DI4 in

order and unchangeable. Please connect the host (the central device ID0) in turn.

Q: Why the Bluetooth data been received is gibberish in the baud rate 115200?

A: The bootloader that FireBeetle BLE4.1 uses is 3.3V Pro Mini of 8MHz oscillator. The

Arduino Pro Mini 3.3V@8MHz may runs wrong with high baud rate. The lower baud rate is

recommend, e.g. 9600bps

Q Does BLE4.1 supports HID, ibeacon and tree network?

A: The functions HID, ibeacon and tree network are under development.

For any questions, advice or cool ideas to share, please visit the

https://www.dfrobot.com/wiki/index.php/DFRobot_BLE4.1_Module_SKU:_TEL0120#More_Documents 11‐9‐17

DFRobot

Forum.