EnOcean click

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  • MIKROE-1908
  • MIKROE-1908
  EnOcean click  carries a  TCM 310  transceiver, which is a... more
Product information "EnOcean click"


EnOcean click carries a TCM 310 transceiver, which is a bidirectional gateway for EnOcean’s 868 MHz radio systems. The click is designed to run on a 3.3V power supply. It communicates with the target MCU through UART (TX, RX pins), with additional functionality provided by RST and EN pins.

Note: Modules with 868 MHz frequency are suitable for Europe and other countries adopting R&TTE specification. Versions of EnOcean click covering different frequency bands will be available in the future.

TCM 310 transceiver

This low-powered wireless module is intended for use together with EnOcean’s range of energy harvesting modules that include self-powered, battery-free wireless switches, sensors and actuators.

Essential features

EnOcean offers a range of modules compatible with TCM 310. Those are miniaturized energy converters that use the surrounding environment — motion, light or temperature differences — to harness enough energy to send a wireless signal to the receiver onboard EnOcean click.

The TCM 310 module can also be set up as a repeater to extend the range of the signal. You can then develop various battery-free switching systems, data loggers and similar.

Onboard antenna

EnOcean click features a small high-performance 868MHz chip antenna onboard so no external antennas are required.

Key features

  • TCM 310 transceiver
    • Frequency: 868 MHz EnOcean
    • Data rate: 125 kbps
  • Onboard antenna
  • Interface: UART
  • 3.3V power supply


Type RF Sub 1GHz
Applications Incorporate battery-free wireless energy harvesting modules into your designs
On-board modules TCM310 transceiver
Key Features Bidirectional gateway for EnOcean 868 MHz radio systems. Compatible with EnOcean energy harvesting modules
Key Benefits Communicates with battery-free switches, sensors and actuators. Onboard chip antenna
Interface GPIO,UART
Input Voltage 3.3V
Compatibility mikroBUS
Click board size L (57.15 x 25.4 mm)

Pinout diagram

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

NotesPinMikrobus logo.png


Not connected NC 1 AN PWM 16 EN In read mode, the firmware version and configuration area can be read from the module
Reset input RST 2 RST INT 15 NC Not connected
Not connected NC 3 CS TX 14 SER_TX UART output
Not connected NC 4 SCK RX 13 SER_RX UART input
Not connected NC 5 MISO SCL 12 NC Not connected
Not connected NC 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


The function sends ESP3 packet header and data over UART interface to an EnOcean module.

01 uint8_t sendMessage(ESP3Pack* esp){
03   uint8_t i=0;
05   if((esp->header.dataLength || esp->header.oppDataLength) == 0)
06    {
07      return -1;
08     }
10   UART2_Write(esp->syncByte);
11   UART2_Write((esp->header.dataLength & 0xFF00)>>8);
12   UART2_Write((esp->header.dataLength & 0xFF));
13   UART2_Write(esp->header.oppDataLength);
14   UART2_Write(esp->header.packetType);
15   UART2_Write(esp->headerCRC);
17   for(i=0; i < esp->header.dataLength; i++)
18       UART2_Write(esp->dataESP3[i]);
19   for(i=0; i < esp->header.oppDataLength; i++)
20       UART2_Write(esp->optData[i]);
22    UART2_Write(esp->dataCRC);
24    return 0;
25 }

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