ble uart

Bluetooth serial port transit NORDIC KEIL

ble-uart is a low-power Bluetooth serial port source code based on nordic Bluetooth chip and keil development environment. I hope to help Bluetooth enthusiasts!

Basic functions

• Bluetooth serial port
• AT command
• Low power mode (power consumption 0.1-0.2mA in broadcast mode)

1 Serial port pin definition

File: pca10001.h

      #define RX_PIN_NUMBER  12
      #define TX_PIN_NUMBER  11
      #define CTS_PIN_NUMBER 10
      #define RTS_PIN_NUMBER 8
      #define HWFC           false

2 Control pin definition

File: user_ble_control.h

      #define DISCONNECT_BLE_SWITCH 13
      #define WAKEUP_BLE_SWITCH     23
      #define BLE_STATUS            29

• DISCONNECT_BLE_SWITCH : [in] Falling edge is valid, disconnect the currently established Bluetooth connection, broadcast and wait for connection again
• WAKEUP_BLE_SWITCH : [ in ]Wake up the Bluetooth chip in system off on the falling edge, the low-level serial port is working normally, and the high-level serial port power is turned off
• BLE_STATUS : [ out ] High level indicates that Bluetooth is connected, low level indicates that Bluetooth is waiting to be connected

3 AT commands

AT+ADVEN : system off and system on mode commands

• AT+ADVEN0 : Decide whether Bluetooth enters system off , Bluetooth enters system off step, a 发送AT+ADVEN0 , b WAKEUP_BLE_SWITCH 输入高电平
• AT+ADVEN1 : Turn off system off mode