EnOcean TCM515B User Manual

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

14 December 2017

Observe precautions! Electrostatic sensitive devices!

Patent protected:

WO98/36395, DE 100 25 561, DE 101 50 128, WO 2004/051591, DE 103 01 678 A1, DE 10309334, WO 04/109236, WO 05/096482, WO 02/095707, US 6,747,573, US 7,019,241

labelling requirements, RF exposure

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

REVISION HISTORY

The following major modifications and improvements have been made to this document:

Version Author Reviewer Date Major Changes

0.1 MKA MKA 15.02.2017 Initial Release

0.2 MKA MKA 14.07.2017 Update regarding operation conditions

0.3 MKA MKA 19.09.2017 Added detailed pin mapping

0.4 RS MKA 19.09.2017 Added antenna options and descriptions

0.5 RS MKA 05.10.2017 Added FCC and distance requirements, FCC and ISED certificates

0.6 RS 14.12.2017 Updated chapters to RF exposure

Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany www.enocean.com, info@enocean.com, phone +49 (89) 6734 6890

Important!

This information describes the type of component and shall not be considered as assured characteristics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the EnOcean website: As far as patents or other rights of third parties are concerned, liability is only assumed for modules, not for the described applications, processes and circuits. EnOcean does not assume responsibility for use of modules described and limits its liability to the replacement of modules determined to be defective due to workmanship. Devices or systems containing RF components must meet the essential requirements of the local legal authorities. The modules must not be used in any relation with equipment that supports, directly or indirectly, human health or life or with applications that can result in danger for people, animals or real value. Components of the modules are considered and should be disposed of as hazardous waste. Local government regulations are to be observed. Packing: Please use the recycling operators known to you.

http://www.enocean.com

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USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

TABLE OF CONTENT

1

1.1

1.2

1.3

1.4

1.5

1.6 2

2.1

2.2

2.3

2.4

2.5

2.6 3

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4

4.1

4.2

4.3

GENERAL DESCRIPTION ................................................................................. 5

Basic functionality ......................................................................................... 5

Technical data ............................................................................................... 6

Physical dimensions ....................................................................................... 6

Environmental conditions ............................................................................... 6

Packaging information .................................................................................... 6

Ordering information ..................................................................................... 6

FUNCTIONAL INFORMATION ........................................................................... 7

TCM 515B Device Interface ............................................................................. 7

2.1.1

3.4.1

3.4.2

3.7.1

3.7.2

3.9.1

4.2.1

4.2.2

4.2.3

4.2.4

4.2.4.1

4.2.4.2

4.2.4.3

Signal Description .................................................................................. 8

High-level operation principle .......................................................................... 8

Radio functionality ......................................................................................... 9

Radio transmission sequence ........................................................................ 10

Radio reception sequence ............................................................................. 10

User-defined radio channels .......................................................................... 10

Telegram format ......................................................................................... 11

Preamble .................................................................................................... 11

Access Address ........................................................................................... 11

Header ....................................................................................................... 11

Source address ........................................................................................... 12

Static source address mode .................................................................. 12

Private resolvable source address mode ................................................. 13

Check Sum ................................................................................................. 14

Payload ...................................................................................................... 15

Sensor status encoding ................................................................................ 16

Sensor Data Descriptor ......................................................................... 16

Sensor Status...................................................................................... 17

TCM 515B telegram authentication ................................................................ 18

ESP3 Interface ............................................................................................ 19

ESP3 Data Format................................................................................ 19

DEVICE INTEGRATION ................................................................................. 20

Recommended PCB Footprint ........................................................................ 20

Antenna options .......................................................................................... 21

General antenna requirements for TCM 515B .......................................... 21

Specific antenna requirements for European Union................................... 21

Specific antenna requirements for US / Canada ....................................... 21

Antenna Description ............................................................................. 21

Whip Antenna ................................................................................... 21

Meandered PCB Antenna .................................................................... 23

Dipole antenna requirements .............................................................. 25

Soldering information .................................................................................. 29

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

4.4

4.5

4.6 5

5.1 Transmission range ............................................................................................ 32

6

6.1

6.2

6.3

Device handling instructions ......................................................................... 29

Device operation instructions ........................................................................ 30

Tape & Reel specification .............................................................................. 31

APPLICATION INFORMATION ........................................................................ 32

REGULATORY INFORMATION......................................................................... 33

CE (RED) for European Union ........................................................................ 33

FCC (United States) Certificate ...................................................................... 34

6.2.1

6.2.2

6.2.3

6.3.1

6.3.2

FCC (United States) regulatory statement ............................................... 35

FCC (United States) labeling requirements .............................................. 35

FCC (United States) RF exposure statement ............................................ 35

ISED (Industry Canada) Technical Acceptance Certificate ................................. 36

ISED (Industry Canada) regulatory statement ......................................... 37

ISED (Industry Canada) RF exposure statement ...................................... 37

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

1 GENERAL DESCRIPTION

1.1 Basic functionality

TCM 515B provides radio transceiver functionality (telegram transmission and reception) according to the Bluetooth Low Energy standard in the 2.4 GHz radio band. TCM 515B receives and transmits radio telegrams based on a whip or PCB antenna connected via the host PCB.

TCM 515B is primarily intended for use within energy harvesting wireless sensors where it will provide the required radio functionality. To meet this requirement, TCM 515B provides a radio application programming interface (API) for transmission and reception of 2.4 GHz BLE radio telegrams. This radio API can be used by sensor applications running on TCM 515B to transmit and receive radio telegrams.

Additionally, TCM 515B provides an ESP3 interface to an external host which can be used to transmit and receive data tele-grams.

TCM 515B provides an I2C interface which can be used to connect external sensors.

TCM 515B is implemented as 31 pin reflow-solderable module in an optimized form factor to enable size constrained applications. The module design is mechanically compatible with the other members of the TCM 515 radio transceiver family to enable reuse.

Figure 1 below shows TCM 515B.

Figure 1 – TCM 515B outline

(1)

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

1.2 Technical data

Antenna External 50 Ohm or whip antenna (connected at host board) Supported Radio Frequency Range 2402 … 2480 MHz Default Radio Channels Advertising on Channel 37, 38 and 39 Receiver Sensitivity (at 25°C) Transmit Power (at 25°C) Adjustable up to +4 dBm Power Supply 3.3 V +- 10% Serial Host Interface UART according to ESP3 Standard with Turbo Mode Option Current Consumption (typ, at 25°C) 15 mA Module Dimensions 19.0 x 14.7 x 3.0 mm (each dimension +-0.3 mm)

Note (1): Receiver sensitivity is based on the combination of 3 subtelegrams

Minimum: -92dBm / Typical: –95 dBm

1.3 Physical dimensions

Module Dimensions 19.0 x 14.7 x 3.0 mm (each dimension +-0.3 mm) Module Weight 1 g

1.4 Environmental conditions

Operating Temperature -25°C ... 85°C Storage Temperature -25°C ... 85°C Humidity 0% to 95% r.h. (non-condensing)

1.5 Packaging information

Packaging Unit 250 units

Packaging Method Tape and reel

1.6 Ordering information

Type Ordering Code Frequency

TCM 515B S3223-K515 2.4 GHz (BLE)

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

2 FUNCTIONAL INFORMATION

2.1 TCM 515B Device Interface

TCM 515B implements a 31 pin reflow-solderable interface. Solder mask data is available on request from EnOcean. The pin assignment (as seen from the top of the device) is shown in Figure 2 below.

Figure 2 – TCM 515B device interface

Table 1 below summarizes the signal assignment.

PIN NAME PIN NAME PIN NAME

1 GND 12 Digital IO 23 GND

2 ANTENNA (50 Ohms) 13 Digital IO 24 Debug

3 GND 14 Digital IO 25 Debug

4 Digital IO 15 GND 26 Digital IO

5 Digital IO 16 Analog / Digital IO 27 Digital IO

6 GND 17 Analog / Digital IO 28 Digital IO

7 Analog / Digital IO 18 I2C Data 29 Digital IO

8 Analog / Digital IO 19 I2C CLK 30 Digital IO

9 Analog / Digital IO / 32 kHz OSC 20 UART RX (Input) 31 TURBO

10 Analog / Digital IO / 32 kHz OSC 21 UART TX (Output)

11 Analog/ Digital IO 22 VDD

Table 1 - TCM 515B device interface pin assignment

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

2.1.1 Signal Description

TCM 515B is supplied by the VDD and GND Pins. The required supply voltage is 3.3V with a tolerance of no more than +-10%.

TCM 515B receives and transmits data based on a 50Ω whip antenna connected to its ANTENNA input (Pin 2).

TCM 515B communicates with the external host using the standard ESP3 serial (UART) interface based on the signals UART_TX (Pin 21, direction from TCM 515B to external host) and UART_RX (Pin 20, direction from external host to TCM 51Z).

The default interface speed of the ESP3 interface is 57600 bit per second (the exact speed is 57347 Bit per second, a deviation of -0.04%).

It is possible to select faster communication speeds of 115200, 230400 and 460800 bit per second during operation using the ESP3 CO_SET_BAUDRATE command.

Additionally it is possible to change the default ESP3 interface speed at power up from

57.600 Bit per second to 460.800 Bit per second by connecting the TURBO input (Pin 31) to Ground. Subsequent modification of the interface speed during operation using the CO_SET_BAUDRATE command is always possible irrespective of the state of the TURBO input pin.

TCM 515B provides one or two I2C interfaces as primarily means to connect external sensors. Additionally, it provides digital and analog inputs and outputs as well as the option for an SPI interface.

2.2 High-level operation principle

In receive mode, TCM 515B forwards the content of received BLE radio telegrams (which pass frame check sum validation) unmodified to the sensor application SW or an external host via the ESP3 interface. The sensor application can use the data of received telegrams for instance to adjust parameters such as update intervals.

In transmit mode, TCM 515B receives from the application SW or an external host the precomputed message payload. TCM 515B then calculates the frame check sum and appends it to the message. The full frame (including the Preamble and Start of Frame fields) will then be transmitted as BLE radio telegram (TX mode).

The sensor application uses an internal or external timer to periodically wake-up and check the status of the connected sensors. Based on this status information, it will decide if transmission of a telegram is necessary and if so forward it to the radio routine by means of its API.

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

2.3 Radio functionality

TCM 515B transmits and receives advertising telegrams within the 2.4 GHz radio frequency band (2402MHz … 2480MHz) using the BLE advertising frame format.

By default, TCM 515B will use the three BLE advertising channels (BLE Channel 37, 38 and

39) defined for transmission and reception. The transmission of a radio telegram on these three advertising channels is called an Advertising Event.

Use of different radio channels within the frequency band from 2402 MHz to 2480 MHz is possible and can be configured by the application software or the external host (via ESP3 interface).

Table 2 below summarizes radio channels supported by TCM 515B.

Radio Channel Frequency Channel Type

BLE Radio Channels

37 2402 MHz BLE Advertising Channel

0 2404 MHz BLE Data Channel 1 2406 MHz BLE Data Channel

… 10 2424 MHz BLE Data Channel 38 2426 MHz BLE Advertising Channel 11 2428 MHz BLE Data Channel 12 2430 MHz BLE Data Channel

… 36 2478 MHz BLE Data Channel 39 2480 MHz BLE Advertising Channel

Custom Radio Channels

40 2403 MHz Custom Radio Channel 41 2405 MHz Custom Radio Channel

… 77 2477 MHz Custom Radio Channel 78 2479 MHz Custom Radio Channel

Table 2 – TCM 515B supported radio channels

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

2.4 Radio transmission sequence

TCM 515B transmits telegrams in its standard configuration by using so-called Advertising Events.

An advertising event is defined as the transmission of the same radio telegram on all selected radio channels (by default this would be on BLE Channel 37, 38 and 39) one after another with minimum delay in between.

For reliability reasons, TCM 515B will send three redundant advertising events for each transmission. The resulting transmission sequence is shown in Figure 3 below.

Figure 3 – Default radio transmission sequence

2.5 Radio reception sequence

TCM 515B receives radio telegrams in its standard configuration by monitoring the Advertising Channels (Channel 37, 38 and 39). Alternative channels can be selected via the radio API or the ESP3 interface.

TCM 515B will continuously scan these channels one after the other for valid data telegrams. The time spent on each channel is configurable.

2.6 User-defined radio channels

In certain situations it might be desirable to transmit and receive radio telegrams on channels other than the three advertising channels.

TCM 515B therefore allows to select the radio channels to be used for the transmission and reception. The selection of the radio channels is done by the application SW using the radio API or the external host using the ESP3 interface.

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

3 Telegram format

TCM 515B transmits and receives radio telegrams in the 2.4 GHz band according to BLE frame structure. For detailed information about the BLE standard, please refer to the applicable specifications.

Figure 4 below summarizes the BLE frame structure.

Figure 4 – BLE frame structure

The content of these fields is described in more detail below.

3.1 Preamble

The BLE Preamble is 1 byte long and identifies the start of the BLE frame. The value of the BLE Preamble is always set to 0xAA.

3.2 Access Address

The 4 byte BLE Access Address identifies the radio telegram type. For advertising frames, the value of the Access Address is always set to 0x8E89BED6.

3.3 Header

The BLE Header identifies certain radio telegram parameters. Figure 5 below shows the structure of the BLE header.

Figure 5 – BLE header structure

USER MANUAL

TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver

3.4 Source address

The 6 byte BLE Source Address (MAC address) uniquely identifies each TCM 515B product.

TCM 515B supports two source address modes:



Static Source Address mode (default) In this mode, the source address is constant (but its lower 32 bit can be configured via radio API)



Private Resolvable Address mode (NFC configurable) In this mode, the source address changes for each transmission

TCM 515B uses by default the Static Source Address mode. Private Resolvable Address mode can be selected via the radio API. These two address modes are described in the following chapters.

3.4.1 Static source address mode

By default, TCM 515B uses static source addresses meaning that the source address is constant during normal operation. The structure of TCM 515B static addresses is as follows:



The upper 2 bytes of the source address are used to identify the device type and set to 0xE500 to designate EnOcean STM 500 multi-sensor type. These two bytes cannot be changed.

The lower 4 bytes are uniquely assigned to each device.



Figure 6 below illustrates the static address structure used by TCM 515B.

Figure 6 – BLE static source address structure

EnOcean TCM515B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual