6LoWPAN C click

How does it work?

6LoPWAN C Click is based on the CC2520, a 2.4GHz IEEE802.15.4/Zigbee RF transceiver from Texas Instruments. The CC2520 features a direct conversion transceiver that operates at a 2.4GHz band, with excellent receiver sensitivity and robustness to interferers. Its RAM module contains memory for receiving and transmitting FIFOs and temporary storage data. The data processing unit (DPU) is responsible for the execution of the more advanced instructions, which includes AES-128 security. The FSM submodule controls the RF transceiver state, the transmitter and receiver FIFOs, and most dynamically controlled analog signals, such as power up/down of analog modules. The CC2520 also includes a modulator, demodulator, PA amplifier, LNA amplifier, and more.

In addition, the CC2520 provides extensive hardware support for frame handling, data buffering, burst transmissions, data encryption, data authentication, clear channel assessment, link quality indication, and frame timing information. The antenna is intended for use with all 2.4 GHz applications. It uses a ground plane to radiate efficiently, but it must not extend underneath the antenna itself.

6LoWPAN C Click uses a standard 4-Wire SPI serial interface to communicate with the host MCU, with a clock supporting up to 8MHz frequencies. The transceiver can be reset over the RST pin and enabled over the VEN pin. There are two user-configurable pins, GP0 and GP1. The GP0 can also provide a clock to a microcontroller, as after reset, this pin will output a 1MHz clock signal with a 50/50 duty cycle. The FIFO signal has a default output on GP1.

This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development.

Specifications

Pinout diagram

This table shows how the pinout on 6LoWPAN C click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
General-Purpose I/O 0	NC	1	AN	PWM	16	VEN	Voltage Regulator Enable
Reset	RST	2	RST	INT	15	GP1	General-Purpose I/O 1
SPI Chip Select	CS	3	CS	RX	14	NC
SPI Clock	SCK	4	SCK	TX	13	NC
SPI Data OUT	SDO	5	MISO	SCL	12	NC
SPI Data IN	SDI	6	MOSI	SDA	11	NC
Power Supply	3.3V	7	3.3V	5V	10	NC
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

6LoWPAN C Click electrical specifications