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SR-SBP2801-BLE-E Bluetooth  Pushbutton Transmitter Module

Important: 

Read All Instructions Prior to Installation

1.1 Basic functionality

SR-SBP2801-BLE-E are wireless push switches for lighting, building or industrial automation control systems 

using Bluetooth® low energy technology.

SR-SBP2801-BLE-E is mechanically compatible with existing switch elements enabling quick integration into a 

wide range of designs. Key applications are wall-mounted or portable switches either with up to two rockers or 

up to four push buttons.

SR-SBP2801-BLE-E pushbutton transmitters are battery-powered. When the push button is pushed down or 

released, a radio telegram according to the Bluetooth® low energy standard is transmitted. This radio telegram 

transmits the status of all four push buttons when the push button was pushed down or released. SR-SBP2801-

BLE-E radio telegrams are protected with AES-128 security based on a device-unique private key.

SR-SBP2801-BLE-E is available in the following variants:

1.SR-SBP2801-BLE-E

Stand-alone module without additional components for OEM integration

2.SR-SBP2801K4-BLE-E

SR-SBP2801-BLE-E integrated into European-style single / double rocker wall switch housing

3.SR-SBP2801K4-BLE-E(US)

SR-SBP2801-BLE-E integrated into US-style single or double rocker pad housing

The term “SR-SBP2801-BLE-E” as used in this document applies to all product variants unless otherwise 

mentioned. Figure 1 below shows from left to right the SR-SBP2801-BLE-E module, the European wall 

switches and the US-style rocker pads.

1. General description

Figure 1 – Standalone Module, European Wall Switches and US-style rocker pads

1.2 Technical data

Dimensions

Weight

Security

Power Supply

Button Inputs

Communication Range (guidance only)

Max. transmit power measured

Antenna

Communication Standard

Data Rate and Modulation

Radio Channels (default)

Configuration Interface

Device Identification

Radio Frequency (min / max)

AES128 (CBC Mode) with Sequence Code

20 g +/- 1g

3VDC (1*CR2430 Battery)

0.4dBm / 1.1mW

Integrated PCB antenna

75 m ideal line of sight / 10 m indoor environment

Up to four buttons or two rockers

40.0 x 40.0 x 11.2 mm

Bluetooth Low Energy (BLE)

Unique 48 Bit Device ID (factory programmed)

1 Mbit/s GFSK (default) / 2 Mbit GFSK (NFC option)

CH 37 / 38 / 39 (2402 MHz / 2426 MHz / 2480 MHZ)

NFC Forum Type 2 Tag (ISO/IEC 14443 Part 2 and 3)

2402 MHz / 2480 MHZ

1.3 Environmental conditions

Operating Temperature

Storage Temperature

Humidity

-25°C ... 65°C

0% to 95% r.h. (non-condensing)

-25°C ... 65°C

2. Functional information

2.1 Product overview

The pushbutton transmitter module SR-SBP2801-BLE-E from Sunricher enables the implementation of 
wireless remote controls. It transmits Bluetooth Low Energy (BLE) data telegrams where the required energy is 
provided by battery.

The SR-SBP2801-BLE-E product outline with key functional components is shown in Figure 2 below.

2.2 Basic functionality

When the push button is pushed down, a BLE radio telegram is transmitted which identifies the action (pressed 
or not pressed) and the status of the four button contacts. Releasing the push button similarly transmits a 
different radio telegram.

SR-SBP2801-BLE-E devices contain 4 button contacts which are pushed by an appropriate push button, 
switch rocker or a similar construction mounted onto the device. 

Button Contact 

Snap-in and rotation axis for 
pushbuttons or switch rocker

Figure 2 – SR-SBP2801-BLE-E Product Outline

Summary of Contents for SR-SBP2801-BLE-E

Page 1: ...Wall Switches and US style rocker pads 1 2 Technical data Dimensions Weight Security Power Supply Button Inputs Communication Range guidance only Max transmit power measured Antenna Communication Sta...

Page 2: ...o channels Channel A and Channel B each containing two button contacts State O and State I The state of all four button contacts pressed or not pressed is transmitted together with a unique device ide...

Page 3: ...he two channel radio transmission sequence removes transmission on the third radio channel selected by TX_CHANNEL3 and instead repeats the transmission once more four times in total The SR SBP2801 BLE...

Page 4: ...key as identity resolution key This key can be modified if needed via the NFC configuration interface as described in chapter 6 7 5 For each data telegram transmitted by SR SBP2801 BLE E i e for every...

Page 5: ...lease Action then this is indicated by the according status bit set to 1 Note that all contacts that were pressed during Press Action will be released during Release Action The case of continuing to h...

Page 6: ...key as part of the NFC based commissioning process To do so follow the procedure outlined in chapter 6 7 5 For additional security NFC read out of the new security key can be disabled by setting the P...

Page 7: ...ssioning mode Button_X is pressed or released again 5 3 3 Exit from commissioning mode Pressing any key except the button used for entry into commissioning mode Button_X will cause SR SBP2801 BLE E to...

Page 8: ...e Any other data received by the NFC tag while in IDLE state is discarded and the NFC tag will remain in IDLE state 6 2 3 READY 1 state READY 1 is the first UID resolving state where the NFC tag resol...

Page 9: ...ID of such tag This should always be used as first operation ahead of any read write authenticate actions Example SearchTag 32 2 NTAG_PwdAuth 32 bit password as hex bytes 16 bit password_ack as hex b...

Page 10: ...FC Data SR SBP2801 BLE E reserves 64 byte for customer specific NFC data see chapter 6 7 11 specific security measures are used to restrict read access to this data The following items are located in...

Page 11: ...and release the button of SR SBP2801 BLE E SR SBP2801 BLE E will determine that it should modify the security key based on the setting of the Update Security Key flag and copy the value of the Securit...

Page 12: ...ngs 6 7 9 2 Interval selection Starting with version DC 06 it is possible to reduce the transmission interval from the default setting of 20 ms to 10 ms by setting bit 3 of the Variant register Settin...

Page 13: ...product label encodes key product parameter according to the ANSI MH10 8 2 2013 industry standard The QR code shown in Figure 32 above encodes the following string 30SE280101500100 Z0123456789ABCDEF0...

Page 14: ...estricting transmission range include Switch mounting on metal surfaces up to 30 loss of transmission range Hollow lightweight walls filled with insulating wool on metal foil False ceilings with panel...

Page 15: ...advertising intervals then the scan interval has to be less than the time between the end of the first advertising event and the begin of the third advertising event 2 10 ms 20 ms minus 0 5 ms telegra...

Page 16: ...ules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause...

Page 17: ...essage shown above can be parsed into the following components keep in mind the little endian byte order BLE Access Address 4 byte 0x8E89BED6 BLE Frame Control 2 byte 0x2442 Size of source address pay...

Page 18: ...rameter Comment Description Example Length Field Size Size in bytes of the field used to encode the input length 2 always minimum permissible size Desired size in byte of the signa ture generated by t...

Page 19: ...for a description of the commission telegram structure The location of the security key is for reference highlighted above This means that the security key of this red device is 3DDA31AD44767AE3CE56D...

Page 20: ...table XOR calculator could be found here http xor pw The execution sequence would then be as follows X_1 AES128 B0 Key X_1 AES128 49B819000015E25D0400000000000000 3DDA31AD44767AE3CE56DCE2B3CE2ABB X_1...

Page 21: ...15E2630400000000000000 3DDA31AD44767AE3CE56DCE2B3CE2ABB X_1 ab5ec24beabc9ddeeb73751c7734cc64 X_1A XOR X_1 B_1 X_1A XOR ab5ec24beabc9ddeeb73751c7734cc64 000B0EFFDA0363040000111234000000 X_1A ab55ccb430...

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