EnOcean 2 Click

EnOcean 2 click carries the TCM 515Z transceiver, based on the 2.4 GHz IEEE 802.15.4 radio standard. The click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over UART interface.

This low-powered wireless module is intended for use together with EnOcean’s range of energy harvesting modules. These are miniaturized converters that harness energy from motion, light or temperature differences, that come in the form of self-powered, battery-free wireless switches, sensors and actuators.

TCM 515Z

TCM 515Z enables the realization of line-powered actuators, controllers, and gateways communicating based on the 2.4 GHz IEEE 802.15.4 radio standard.

It provides a transparent radio link between EnOcean 2.4 GHz devices and an external host connected via the standardized ESP3 interface (EnOcean Serial Protocol V3).

TCM 515Z works on a 2.4 GHz frequency for ZigBee systems.

EnOcean Serial Protocol 3.0 (ESP3)

ESP3 is a Point-to-Point protocol with a packet data structure.

The maximum size of transferred data is 65535 bytes. Compared with ESP2.0, that has the maximum of 25 bytes, it’s a considerable improvement.

Onboard antenna

TCM 515Z receives and transmits data based on a 50Ω whip antenna connected to its ANTENNA input.

Specifications

Pinout diagram

This table shows how the pinout on EnOcean 2 click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
	NC	1	AN	PWM	16	NC
	NC	2	RST	INT	15	NC
	NC	3	CS	TX	14	UART_TX	UART transmit
	NC	4	SCK	RX	13	UART_RX	UART receive
	NC	5	MISO	SCL	12	NC
	NC	6	MOSI	SDA	11	NC
Power supply	+3.3V	7	3.3V	5V	10	NC
Ground	GND	8	GND	GND	9	GND	Ground

Jumpers and settings

Programming

Code examples for EnOcean 2 click, written for MikroElektronika hardware and compilers are available on Libstock.

The library implements EnOcean Serial Protocol 3. It can be used for communication between a host and an EnOcean module. Recieved packets, if valid, are forwarded to a user via the callback function.

The demo demonstrates the library functionality using EnOcean 2 click and PTM215ZE Pushbutton Transmitter Module. When the user pushes the button, a corresponding LED is turned on or off.

Code snippet

The code snippet shows how to use library packet type and send command to an EnOcean module.

01 static void read_version()
02 {
03     esp3_packet_t cmd_packet;
04     uint8_t cmd_packet_buffer[1];
05 
06     cmd_packet.data_length = 1;
07     cmd_packet.option_length = 0;
08     cmd_packet.type = ESP3_TYPE_COMMON;
09     cmd_packet.data_buffer = cmd_packet_buffer;
10     // Command code.
11     cmd_packet_buffer[0] = ESP3_CO_RD_VERSION;
12 
13     esp3_send(&cmd_packet);
14 }