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由凱斯電子製作藍芽模組底板


請注意    

KSM108 要使用在手 機或平板上,只能使用Andorid 4.3以上且要有支援BLE。

且由於Andorid BLE的API 語法跟一般藍芽 API 不同,所以測試方式跟HC-05 等傳統藍芽模組不一樣。

模組資料裡面有個APK 請使用那個,有要寫APK 時也有提供SOURCE CODE,請自行修改,

如果是2個KS108 可以一個設成主機模式,另一個設成從機模式,這樣就可以直接互傳資料。

以下是Andoid  Bluetooth Low Energy 的語法

https://developer.android.com/guide/topics/connectivity/bluetooth-le.html 

 

藍芽模組的初學者建議直接購買 用途最廣 資料最豐富的

KSM008 藍芽模組

 

 

 

HC-08 藍芽串口通信模組是新一代的基於Bluetooth Specification V4.0 BLE 藍芽協議的通訊模組。無線工作頻段為2.4GHz ISM,調製方式是GFSK。模組最大發射功率為4dBm,接收靈敏度-93dBm,空曠環境下和iphone4s 可以實現80 超遠距離通信。

模組採用郵票孔封裝方式,可貼片焊接,模組大小26.9mm×13mm×2.2mm,很方便客戶嵌入應用系統之內。

模組採用TI CC2540 晶片,配置256K Byte 空間,支援AT 指令,用戶可根據需要更改角色(主、從模式)以及UART串列傳輸速率、設備名稱等參數,使用靈活。


 

HC-08 Current Consumption

When module is Master current consumption Slave current consumption
paired with an adapter 8.9mA 8.9mA
paired with the adapter connecting and sending data 9.3mA 9.3mA
not paired with the adapter 20.2mA 8.9mA

Note: absolute maximum voltage is 3V6 DC.

 

HC-08 firmware versions

  • The default baud rate is 9600.
  • There must be a delay between data packets. For example, if the baud rate is 1200 baud, the packet length is 120 bytes and the transmission time delay between packets must be not less than 2000ms otherwise you may lose data. The packet transmission time delay for 38400 baud with a packet length is 120 bytes must not be less than 200ms. At 115,200 baud with a packet length of 120 bytes, the transmission time delay between data packets must be not less than 50ms).
  • When the baud rate is 19200 baud or more, the number of bytes per packet cannot be more than 120 bytes.
  • The higher the baud rate, the shorter the transmission delay time required between data packets.
  • The shorter the number of bytes per packet, the shorter the required delay time (e.g. 115,200 baud with a packet length of 20 bytes, the transmission delay time between data packets is less than 20ms).

HC-08 Pin Definition

  • Pin 1: (UART TX) serial transmit, 3.3V TTL level.
  • Pin 2: (UART RX) serial receive, 3.3V TTL level.
  • Pin 3: (CTS) serial flow control, not supported.
  • Pin 4: (RTS) serial flow control, not supported.
  • Pin 11: (RST) reset pin; take LOW for not less than 5ms.
  • Pin 12: (VCC) 2-3.6VDC operating voltage (typical 3.3VDC), current not less than 100mA.
  • Pin 13: (VSS) common ground.
  • Pin 22: (VSS) common ground.
  • Pin 24: (LED) LED output pin; ON when paired/connected, PULSING when not paired/connected.
  • Pin 26: (KEY): internal pulldown resistor keeps LOW for normal operation; HIGH erase pairing/connection information; after erasure, searches for new device to pair with/connect to randomly.
  •  

HC-08 AT commands

  • AT responds OK
  • AT + BAUDx responds with OKn where x is 1 - n is 1200, 2 - 2400, 3 - 4800, 4 - 9600 (default), 5 - 19200, 6 - 38400, 7 - 57600, 8 - 115200. Note: module must be reset after power-on for the new serial port baud rate to take effect.
  • AT + NAMEname responds OKsetname - name is the Bluetooth device name to be set and must be 13 characters or fewer. Retained across power offs. Note: module must be reset after power-on for the new device name to take effect.

 

 

KSM108 HC08 低功耗 BLE 藍芽模組

  • 型 號: 0401070007
  • 庫存狀況: 尚有庫存
  • $TWD195