Electronic shelf label (ESL)

Usher your smart retail into a new era with Bluetooth® solutions

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Overview

The electronic shelf label (ESL) market is rapidly growing and so are its requirements. To resolve the vendor lock-in problem and to standardize the market, the Bluetooth® 5.4 specification is bringing this revolutionary change to this market with the PAwR feature. The high-performance AIROC™ Bluetooth® LE CYW20829 helps to meet these demands for Bluetooth® 5.4, while offering reliability  

Benefits

  • Reliable connectivity
  • Standardizing on Bluetooth® 5.4 spec.
  • Enabling long-range capabilities
  • PAwR feature enabled by CYW20829

Block diagram

About

New Bluetooth® 5.4 specification

Bluetooth® 5.4 specification is the newest version of Bluetooth® technology, released by Bluetooth® Special Interest Group (SIG) in February of 2023, including Periodic Advertising with Response (PAwR) and Encrypted Advertising Data (EAD) features that together enable secure, bi-directional communication between a wireless access point (AP) and thousands of very-low-power end nodes with low energy and long range. The rapidly growing Electronic Shelf Label (ESL) market will highly benefit from these two features by allowing the use of the current standard-based Bluetooth® wireless communication. Meanwhile, the reliability can be improved through Link Layer privacy as well. In sum, Bluetooth® 5.4 is ushering ESL applications into a new era.

Get energy-efficient, bi-directional communication with CYW20829 and PAwR

The AIROC™ CYW20829 offers PAwR, which is the key Bluetooth® 5.4 specification feature. PAwR enables ESL tags to receive data from a periodic advertiser to respond to the transmitter of the periodic advertiser, and real-time monitoring of sensor data, or triggering specific actions based on certain conditions. With this feature, tags can be allocated to different groups (up to 128 groups, max 255 tags per group). This feature enables energy-efficient, bi-directional communication in a large-scale one-to-many or star topology.

Encrypted Advertising Data (EAD)

The EAD feature in Bluetooth® 5.4 provides a standardized approach to the secure broadcasting of data in advertising packets. The requirement of encrypting advertising data can be enabled with this feature. Encrypted advertisement data can be received by any ESL tag but can only be decrypted and authenticated by tags that have previously shared the session key. The significant benefit of this feature is that it allows for the encryption of data shared over periodic advertisement with responses.

Electronic Shelf Label (ESL) profile

The new ESL profile in Bluetooth® 5.4 specification is the standardized profile and service, developed by Bluetooth® SIG. This profile is based on two new features - PAwR and EAD, which provide the lowest power consumption while allowing thousands of labels to be updated and synchronized remotely through encrypted advertising.

Benefit from Bluetooth® 5.4 featuring long-range

AIROC™ CYW20829 is supporting the new features in the Bluetooth® 5.4 specification, including PAwR, EAD, and LE GATT security level characteristics. Also, CYW20829 is the ideal device for ESL battery-powered use cases designed with low active and sleep current while offering extremely robust RF with +10 dBm output power. Additionally, it enables Bluetooth® LE long-range in hundreds of meters for industrial use cases.

Learn about CYW20829

New Bluetooth® 5.4 specification

Bluetooth® 5.4 specification is the newest version of Bluetooth® technology, released by Bluetooth® Special Interest Group (SIG) in February of 2023, including Periodic Advertising with Response (PAwR) and Encrypted Advertising Data (EAD) features that together enable secure, bi-directional communication between a wireless access point (AP) and thousands of very-low-power end nodes with low energy and long range. The rapidly growing Electronic Shelf Label (ESL) market will highly benefit from these two features by allowing the use of the current standard-based Bluetooth® wireless communication. Meanwhile, the reliability can be improved through Link Layer privacy as well. In sum, Bluetooth® 5.4 is ushering ESL applications into a new era.

Get energy-efficient, bi-directional communication with CYW20829 and PAwR

The AIROC™ CYW20829 offers PAwR, which is the key Bluetooth® 5.4 specification feature. PAwR enables ESL tags to receive data from a periodic advertiser to respond to the transmitter of the periodic advertiser, and real-time monitoring of sensor data, or triggering specific actions based on certain conditions. With this feature, tags can be allocated to different groups (up to 128 groups, max 255 tags per group). This feature enables energy-efficient, bi-directional communication in a large-scale one-to-many or star topology.

Encrypted Advertising Data (EAD)

The EAD feature in Bluetooth® 5.4 provides a standardized approach to the secure broadcasting of data in advertising packets. The requirement of encrypting advertising data can be enabled with this feature. Encrypted advertisement data can be received by any ESL tag but can only be decrypted and authenticated by tags that have previously shared the session key. The significant benefit of this feature is that it allows for the encryption of data shared over periodic advertisement with responses.

Electronic Shelf Label (ESL) profile

The new ESL profile in Bluetooth® 5.4 specification is the standardized profile and service, developed by Bluetooth® SIG. This profile is based on two new features - PAwR and EAD, which provide the lowest power consumption while allowing thousands of labels to be updated and synchronized remotely through encrypted advertising.

Benefit from Bluetooth® 5.4 featuring long-range

AIROC™ CYW20829 is supporting the new features in the Bluetooth® 5.4 specification, including PAwR, EAD, and LE GATT security level characteristics. Also, CYW20829 is the ideal device for ESL battery-powered use cases designed with low active and sleep current while offering extremely robust RF with +10 dBm output power. Additionally, it enables Bluetooth® LE long-range in hundreds of meters for industrial use cases.

Learn about CYW20829

Design resources

Developer community

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