BEE click

BEE click features MRF24J40MA 2.4 GHz IEEE 802.15.4 radio transceiver module from Microchip. The click is designed to run on 3.3V power supply only. It communicates with the target microcontroller over an SPI interface.

BEE click is an ideal solution for wireless networks, smart home and building automation, and other electronic applications that need wireless communication.

MRF24J40MA module

MRF24J40MA is IEEE 802.15.4™ standard compliant RF transceiver. It supports ZigBee®, MiWi™, MiWi P2P and proprietary wireless networking protocols with data rates of 250 kbps (IEEE 802.15.4).

PCB antenna

This module includes an integrated PCB antenna and matching circuitry and is connected to the microcontroller via an SPI interface.

Power supply

The board is designed to use 3.3V power supply only. If you need to add ZigBee™ feature to your 5V prototype or development board, we recommend you to use other boards such as the EasyBee 3 board.

Specification

Key features

• PCB antenna
• MRF24J40MA module
  • Low current consumption (Tx 23mA, Rx 19mA, Sleep 2uA)
  • ZigBee stack
  • MiWi™ stack
• Interface: SPI
• 3.3V power supply

Pinout diagram

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

Notes	Pin	mikroBUStm				Pin	Notes
External wake-up trigger	WA	1	AN	PWM	16	NC	Not connected
Global hardware Reset pin	RST#	2	RST	INT	15	INT	Interrupt pin
Serial interface enable	CS#	3	CS	TX	14	NC	Not connected
Serial interface clock	SCK	4	SCK	RX	13	NC	Not connected
Serial interface data output	SDO	5	MISO	SCL	12	NC	Not connected
Serial interface data input	SDI	6	MOSI	SDA	11	NC	Not connected
Power supply	+3.3V	7	3.3V	5V	10	NC	Not connected
Ground	GND	8	GND	GND	9	GND	Ground

Programming

Code examples for BEE click, written for MikroElektronika hardware and compilers are available on Libstock.

This example transmits the data via the radio transceiver module, and displays it on the TFT display. For every pass it increments data.

01 void main() {
02 Initialize(); // Initialize MCU and Bee click board
03 DrawFrame();
04 
05 while(1) { // Infinite loop
06 write_TX_normal_FIFO(); // Transmiting
07 ByteToStr(DATA_TX[0],&txt); // Convert byte to string
08 TFT_Set_Font(&TFT_defaultFont, CL_BLACK, FO_HORIZONTAL);
09 TFT_Write_Text(txt, 215, 80); // Display string on TFT
10 delay_ms(1000);
11 TFT_Set_Font(&TFT_defaultFont, CL_WHITE, FO_HORIZONTAL);