Bluetooth click

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  • MIKROE-958
  • MIKROE-958
  With the range up to a 100m and low power consumption,  Bluetooth click... more
Product information "Bluetooth click"

 

With the range up to a 100m and low power consumption, Bluetooth click is a great solution if you are looking for a simple way to integrate Bluetooth 2.1 communication to your device. It features the RN-41 low power, class 1 Bluetooth radio module. Bluetooth click communicates with the target board MCU through UART interface and is designed to run on 3.3V power supply only.

RN-41 module

The RN-41 Class 1 Bluetooth radio module delivers up to a 3-Mbps data rate, for distances up to 100 meters (class 1 radio).

Bluetooth 2.1

Bluetooth 2.1 + EDR version includes sniff subrating, a feature that significantly increases battery life for devices that have long periods in idle mode, like home sensor networks, headsets, etc. The host can specify maximum transmit and receive latencies, so that a device knows how often in a cycle it needs to enter sniff mode.

Power consumption

The average power consumption in normal mode is 30mA, 8mA in low-power sniff mode, and only 2.5mAin stand-by mode.

Low power consumption and high data rates make this click the best choice in barcode scanners, measurement and monitoring systems, industrial sensors and controls, medical devices, asset tacking, etc.

Specification

Type Bluetooth,BLE
Applications Low power consumption and high data rates make this device the best choice in barcode scanners, mesurement and monitoring systems, industrial sensors and controls, medical devices, asset tacking and more.
On-board modules RN-41 module
Key Features Fully qualified Bluetooth 2.1/2.0/1.2/1.1 module
Key Benefits Low power (30mA connected, less then 10mA sniff mode). UART Data rates up to 3Mbps
Interface UART,GPIO
Input Voltage 3.3V
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)

Key features

  • RN-41 module
    • Bluetooth® version 2.1 module
    • Low power (30 mA connected, <10 mA sniff mode)
    • 3-Mbps data rate for distances up to 100 meters
  • Interface: UART
  • 3.3V power supply

Pinout diagram

This table shows how the pinout on Bluetooth click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

NotesPinMikrobus logo.png

mikroBUStm

PinNotes
Not connected NC 1 AN PWM 16 NC Not connected
Active-low reset RESET 2 RST INT 15 NC Not connected
Not connected NC 3 CS TX 14 TX UART transmit
Not connected NC 4 SCK RX 13 RX UART receive
Not connected NC 5 MISO SCL 12 RTS UART RTS, goes high to disable host transmitter
Not connected NC 6 MOSI SDA 11 CTS UART CTS, if set high, it disables transmitter
Power supply +3.3V 7 3.3V 5V 10 NC Not connected
Ground GND 8 GND GND 9 GND Ground

Programming

The following code snippet shows how to change the default Bluetooth device name.

 1 void  BT_new name()
2 {
3     do {
4         UART1_Write_Text( "$$$" );                    // Enter command mode
5         Delay_ms( 500 );
6     } while ( BT_Get_Response() != BT_CMD );
7     do {
8         UART1_Write_Text( "SN,BlueTooth-Click" );     // Name of the device
9         UART1_Write( 13 );                            // CR
10         Delay_ms( 500 );
11     } while ( BT_Get_Response() != BT_AOK );
12 }

Code examples that demonstrate the usage of Bluetooth click with MikroElektronika hardware, written for mikroC, mikroBasic and mikroPascal for ARM, dsPIC and PIC are available on Libstock.

 

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