TOP Contributors

  1. MIKROE (2784 codes)
  2. Alcides Ramos (405 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (133 codes)
  5. Bugz Bensce (97 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (141478 times)
  2. FAT32 Library (74335 times)
  3. Network Ethernet Library (58867 times)
  4. USB Device Library (48921 times)
  5. Network WiFi Library (44698 times)
  6. FT800 Library (44227 times)
  7. GSM click (30937 times)
  8. mikroSDK (29817 times)
  9. PID Library (27423 times)
  10. microSD click (27375 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

RN4871 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.19

mikroSDK Library: 2.0.0.0

Category: BT/BLE

Downloaded: 450 times

Not followed.

License: MIT license  

RN4871 Click carries the RN4871 Bluetooth® 4.2 low energy module from Microchip.The Click is designed to run on a 3.3V power supply. It uses ASCII Command Interface over UART for communication with target microcontroller, with additional functionality provided by the following pins on the mikroBUS™ line: RST, CS, and INT.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "RN4871 Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "RN4871 Click" changes.

Do you want to report abuse regarding "RN4871 Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


RN4871 Click

RN4871 Click carries the RN4871 Bluetooth® 4.2 low energy module from Microchip.The Click is designed to run on a 3.3V power supply. It uses ASCII Command Interface over UART for communication with target microcontroller, with additional functionality provided by the following pins on the mikroBUS™ line: RST, CS, and INT.

rn4871_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : jun 2020.
  • Type : UART GSM/IOT type

Software Support

We provide a library for the Rn4871 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for Rn4871 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void rn4871_cfg_setup ( rn4871_cfg_t *cfg );

  • Initialization function.

    RN4871_RETVAL rn4871_init ( rn4871_t ctx, rn4871_cfg_t cfg );

Example key functions :

  • This function gets message from 'void rn4871_receive function if flag was set. This function replaces '*' (character with end of string) with '0x00' and stores received message to process_buffer

    uint8_t rn4871_read ( rn4871_t ctx, uint8_t process_buffer );

  • The function receives character by waits for '#' - character to start parsing message, waits for '*' - character to stop parsing message and sets flag if whole and properly formated message is received.

    void rn4871_receive ( rn4871_t *ctx, char tmp );

  • The function connects to slave device with desired register address by secures the connection and entering data stream mode.

    void rn4871_connect ( rn4871_t ctx, char p_addr );

Examples Description

This example reads and processes data from RN4871 clicks.

The demo application is composed of two sections :

Application Init

Initializes UART driver. Initializes device and parser.


void application_init ( void )
{
    log_cfg_t log_cfg;
    rn4871_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    rn4871_cfg_setup( &cfg );
    RN4871_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    rn4871_init( &rn4871, &cfg );

    dev_type = RN4871_DEVICETYPE_MASTER;

    if ( dev_type == RN4871_DEVICETYPE_MASTER )
    {
        rn4871_initialize( &rn4871, &RN4871_ADDR_MASTER[ 0 ] );
    }
    else if ( dev_type == RN4871_DEVICETYPE_SLAVE )
    {
        rn4871_initialize( &rn4871, &RN4871_ADDR_SLAVE[ 0 ] );
        ptr = &receive_buffer[ 7 ];
    }

    memset( &rn4871.device_buffer, 0, 255 );
    log_printf( &logger, " >>> app init done <<<  \r\n" );
}

Application Task

If 'MASTER' - connects to 'SLAVE', sends message and disconnects. If 'SLAVE' - waits for connect request and message from 'MASTER' and LOGs received message.


void application_task ( void )
{
    rn4871_process(  );
    if ( dev_type == RN4871_DEVICETYPE_MASTER )
    {
        rn4871_connect( &rn4871, &RN4871_ADDR_SLAVE[ 0 ] );
        log_printf( &logger, ">>> sending data  <<<\r\n" );
        rn4871_send( &rn4871, RN4871_MTYPE_MSG, RN4871_DTYPE_STRING, RN4871_ID_MASTER, &message_payload[ 0 ] );
        rn4871_disconnect( &rn4871 );
    }
    else if ( dev_type == RN4871_DEVICETYPE_SLAVE )
    {
        msg_flag = rn4871_read( &rn4871, &receive_buffer[ 0 ] );

        if ( msg_flag == 1 )
        {
            log_printf( &logger, ">>> data received <<<\r\n" );
            log_printf( &logger, ">>> data : " );
            log_printf( &logger, "%s\r\n", ptr );     
        }
    }
}  

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Rn4871

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


ALSO FROM THIS AUTHOR

Force 5 click

5

Force 5 Click is a compact add-on board that contains a stable and flexible compensated/amplified micro force sensor.

[Learn More]

BATT-MON 2 Click

0

BATT-MON 2 Click is a compact add-on board representing a battery monitoring solution. This board features the MAX17262, an ultra-low power I2C-configurable fuel-gauge IC which implements the ModelGauge™ m5 algorithm from Analog Devices. The MAX17262 monitors a single-cell battery pack (best performance for batteries with 100mAhr to 6Ahr capacity), providing precision measurements of current, voltage, and temperature, and supporting internal current sensing for up to 3.1A pulse current. The battery pack's temperature is measured using an internal temperature sensor or external thermistor.

[Learn More]

Pressure 3 Click

0

Pressure 3 Click is a mikroBUS add-on board that carries an Infineon DPS310 digital barometric pressure sensor. It has an operating range from 300 to 1200 hPa with a relative accuracy of 0.06 hPa and absolute accuracy of 1 hPa.

[Learn More]