Introducing Raytac's nRF54L15 AT Command Module Series – Pre-loaded firmware with Lower Power Consumption

 [CA, USA/Taipei, Taiwan]

Raytac Group, a worldwide leader in wireless modules, wireless solutions, and a Nordic-recommended third-party module manufacturer, is pleased to announce the official release of the AN54LQ-AT and AN54LV-AT series, our newest Bluetooth® Low Energy AT Command modules built upon Nordic Semiconductor's nRF54L15 ultra-low-power wireless SoC.

Designed for engineers who want to integrate BLE quickly and easily, the AT Command series comes with pre-loaded peripheral (slave) role firmware, enabling straightforward UART communication with a host MCU through simple AT Commands.
Built on Nordic's next-generation nRF54L15 SoC, the series delivers exceptional power efficiency, reducing power consumption by approximately 50% compared to previous-generation nRF52-based AT Command modules.

The nRF54L15 AT Command family is available in five variants to satisfy different RF and mechanical requirements.

AN54LQ Series
- Ceramic chip antenna: AN54LQ-AT (Click here for full product details)
- PCB trace antenna: AN54LQ-PAT (Click here for full product details)
- u.FL connector for external antenna: AN54LQ-UAT (Click here for full product details)

AN54LV Series
- Ceramic chip antenna: AN54LV-AT (Click here for full product details)
- PCB trace antenna: AN54LV-PAT (Click here for full product details)

AT Command Development Kit
- AN54LQ Series: AN54LQ-AT-UART-S (Click here for full product details)
- AN54LV Series AN54LV-AT-UART-S (Click here for full product details)


The standard AN54LQ family measures only 9.5 × 13.7 × 1.8 mm, while the AN54LV family further reduces the footprint to just 6.4 × 8.4 × 1.5 mm, making it an excellent choice for wearable devices, portable products, industrial sensors, medical devices, and other space-constrained applications.

Engineers can integrate Bluetooth communication(peripheral role) into an existing MCU platform without implementing the Bluetooth LE protocol or maintaining a Bluetooth LE firmware stack.

Acting as a seamless bridge between the host MCU and Bluetooth devices, the AT Command module enables easy wireless communication without any complexity of firmware development.

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Technical Overview

Category	Specification
Series	AN54LQ and AN54LV
Antenna Options	Chip antenna, PCB antenna, u.FL (external antenna)
Bluetooth® Certification	Bluetooth® 6.0 certified
RF Certifications	FCC, IC, UKCA, CE, TELEC (MIC), KC, SRRC, NCC, RCM, WPC
Processor	128 MHz Arm® Cortex®-M33 processor + 128 MHz RISC-V coprocessor
Security	Enhanced security aligned with EU Cyber Resilience Act (CRA) requirements
Interfaces	UART(Bluetooth Connectivity via UART AT Commands)
Key Features	- Rich AT Command(Peripheral/Slave Role) set, No firmware development needed - Up to 50% Lower Power Consumption vs. nRF52-based AT Command Modules - Selectable 1 Mbps / 2 Mbps PHY Data Rate - Custom UUID Configuration (Hex Format) - Built-in Power Saving & GPIO Wake-Up Functions - Advertising/Connection Control - RSSI, Battery Monitoring & Device Management

List of supported commands

• Setting of device name
• Choose data rate of 1Mbps or 2Mbps on-air
• Set TX output power in 6 levels.
• Set advertising time
• Set connection interval under Mode 2
• Enable/disable advertising
• 8 sets of UART baud rates
• Enable/disable UART flow control
• Enable/disable interface of UART hardware
• Power-down mode for power saving and GPIO wake-up
• Recover-to-default setting with hardware and software method
• System reset of hardware and software
• Set serial number and retrieve
• Set or retrieve MAC Address
• Retrieve ADC value for battery detection, delivering the information through battery service.
• Enable/disable connection command mode
• Setting of advertising interval
• Retrieve RSSI value of the connected

The modules are already in Mass Production.

Please subscribe to Raytac’s Blogger: https://raytaccorp.blogspot.com/ for more upcoming information.

Welcome to send an inquiry to any of the below links:
Raytac Corporation contact form: https://www.raytac.com/contact/
Raytac Corporation mailbox: sales@raytac.com

abietec Inc. contact form: https://www.abietec.com/contact
abietec Inc. mailbox: service@abietec.com

to discuss how Raytac/abietec can support your project.

Let's keep in touch!

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Raytac Corporation 勁達國際電子股份有限公司 / Raytac Corporation (USA) / abietec Inc.
A Bluetooth, Wi-Fi, and LoRa Module Maker/ODM & OEM Manufacturer based on
Nordic nRF54; nRF53: nRF52; nRF51; nRF7002
Infineon: CYW55912
NXP: RW610, RW612
Semtech: SX1262

Bluetooth Specification: BT6 ; BT5.4 ; BT5.3 ; BT5.2.
Wi-Fi Specification: Wi-Fi 6
LoRa Specification: LoRaWAN
Zephyr Project Silver Member

All products are FCC/IC/CE/Telec/KC/RCM/SRRC/NCC/WPC/RoHS/Reach Certified.

Tel: +886-2-3234-0208(TW)/+1-626-328-3827(USA)

Product Change Notice (PCN-26041701) on Raytac MDBT40 module's Chip Antenna Replacement

  New Taipei, Taiwan / Los Angeles, USA, 04/23/2026

Raytac announces a Product Change Notice (PCN-26041701) for below modules, change effective on the Date Codes stated within.

Device Affected:
1. MDBT40-256RV3: 618 and after
2. MDBT40-256V3: 618 and after

The supplier(of the original chip antenna) notified Raytac in March 2026 that the original chip antenna has reached its end-of-life (EOL) status, thus the introduction of an alternative(new) chip antenna from the same supplier to ensure long term supply continuity.

There are no changes on Form, Fit, Function, and Quality of Reliability.  Only change in Chip Antenna Appearance.

Upon receiving this notice, our R&D team promptly conducted comprehensive validation. The results confirm that there is no impact on RF performance, EMC compliance, or related certifications. 

In conclusion, all existing certifications and technical documentations remain valid.

The change is already effective as the existing inventory of the original chip antenna has been depleted. All production batches are already using the new chip antenna.

We kindly invite our customers, distributors, and partners to update your records accordingly.
For any questions or support, and further document requests regarding this update, feel free to reach out to Raytac Sales Team via: sales@raytac.com.

Raytac with Nordic nRF54L15: Modules designed to Outlast & Outdo!

 Raytac’s AN54LQ & AN54LV modules, powered by Nordic Semiconductor’s nRF54L family SoCs, come in multiple form factors and antenna options, ensuring your seamless integration into compact, RF-sensitive, or performance-driven designs.

Whether you need a:
☑ Chip antenna;
☑ PCB antenna;
☑ u.FL connector;
☑ Antenna Pin,

Or you want Small, Smaller, or Smallest, we always have a solution that fits best!
*All products are pre-certified with FCC, IC, CE, UKCA, Telec, KC, SRRC, NCC, RCM, WPC.

All our modules are available now on our website: https://www.raytac.com/product/:
nRF54L15 modules – AN54LQ Family

Model	Antenna Type	Product Website
AN54LQ-15	Ceramic Chip	https://www.raytac.com/product/ins.php?index_id=158
AN54LQ-P15	PCB Trace	https://www.raytac.com/product/ins.php?index_id=159
AN54LQ-U15	u.FL Connector	https://www.raytac.com/product/ins.php?index_id=160

nRF54L15 modules – AN54LV Family

Model	Antenna Type	Product Website
AN54LV-15	Ceramic Chip	https://www.raytac.com/product/ins.php?index_id=169
AN54LV-P15	PCB Trace	https://www.raytac.com/product/ins.php?index_id=171
AN54LV-U15	u.FL Connector	https://www.raytac.com/product/ins.php?index_id=176
AN54LV-K15	Antenna Pin	https://www.raytac.com/product/ins.php?index_id=177

nRF54L10 modules – AN54LQ Family

Model	Antenna Type	Product Website
AN54LQ-10	Ceramic Chip	https://www.raytac.com/product/ins.php?index_id=165
AN54LQ-P10	PCB Trace	https://www.raytac.com/product/ins.php?index_id=163
AN54LQ-U10	u.FL Connector	https://www.raytac.com/product/ins.php?index_id=164

nRF54L05 modules – AN54LQ Family

Model	Antenna Type	Product Website
AN54LQ-05	Ceramic Chip	https://www.raytac.com/product/ins.php?index_id=166
AN54LQ-P05	PCB Trace	https://www.raytac.com/product/ins.php?index_id=167
AN54LQ-U05	u.FL Connector	https://www.raytac.com/product/ins.php?index_id=168

For more information, please contact: sales@raytac.com.

Raytac Corporation – U.S. Headquarters Relocation Notice

 New U.S. Headquarter Address:

17800 Castleton Street, Suite 238, City of Industry, CA 91748, USA
Phone: 626.328.3827
Our new location strengthens our operational capabilities in the United States, enabling faster logistics, enhanced customer support, and expanded service coverage. We look forward to continuing to serve our partners and customers from our new facility.

Raytac Corporation (USA) Launches Inland DDP Shipping & Local Support in California

 

[08/14/2025, California, USA]
To better support our customers in the United States, Raytac Corporation(USA) now offers inland domestic shipping and a local support team based in California.

By bringing our services closer to U.S. clients, we can provide faster assistance for ongoing projects, significantly shorten lead times, and maintain the high quality and global compliance standards Raytac is known for.

For more information, please do not hesitate to contact us through: https://www.raytac.com/contact/

Transition tips for program from MDBT50Q-RX (USB-A) to MDBT50Q-CX (USB-C) with current NRF52840 project

 Intro:

This is a guidance provided for those who are going to transit (or replicate) their project from Raytac MDBT50Q-RX (USB-A Dongle) to MDBT50Q-CX(USB-C Dongle).  In addition to the hardware spec change (Compact Size , LED, Button, Pin definition change) , the key firmware configuration should be made with changes to fit new USB-C Dongle MDBT50Q-CX.

 

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MDBT50Q-RX                             MDBT50Q-CX

  

Table of Contents:

1. Comparison chart: MDBT50Q-RX(USB-A) & MDBT50Q-CX(USB-C)

2. Firmware configuration

3. Create a merged hex file (2 in 1 or 4 in 1)

4. Firmware flashing process

 

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1. Comparison chart: MDBT50Q-RX & MDBT50Q-CX

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2. Firmware configuration : MDBT50Q-RX → MDBT50Q-CX

Edit your current MDBT50Q-RX firmware with configuration change to align the PIN change to accommodate the hardware change.

Option 1. Using nRF5 SDK:

Make the definition set up of LED, BUTTON pin in the highlighted 4 sections.

 

Option 2. Using NCS V2.6.X:

Use the board name: nrf52840dongle_nrf52840 and add the overlay file:

nrf52840dongle_nrf52840.overlay to the program (Devicetree Overlays)，

then configure the below code definition into the overlay file:

/ {
   leds {
             compatible = "gpio-leds";
             led0_green: led_0 {
                      gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
                      label = "Green LED 0";
             };
             led1_red: led_1 {
                     gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
                     label = "Red LED 1";
             };
};

  buttons {
  compatible = "gpio-keys";
  button0: button_0 {
                  gpios = <&gpio1 6(GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
                  label = "Push button switch 0";
                                   };
};
};

 

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3. Create a merged hex file (2-in-1 or 4-in-1 hex file)

3A. Bootloader public key product

nrfutil keys generate public_key.pem → for zipping new firmware

nrfutil keys display --key pk --format code public_key.pem --out_file public_key.c

→ include public key to compile bootloader hex file

 

3B. Examples Demo

nRF5 SDK: nRF5_SDK_17.1.0_ddde560\examples\ble_peripheral\ble_app_uart\pca10056\s140

NCS V2.6.X: ncs\v2.6.0\nrf\samples\bluetooth\peripheral_uart

 

3C. How to generate bootloader setting file (if you need bootloader):

nrfutil.exe settings generate --family NRF52840 --application nrf52840_xxaa.hex --application-version 255 --bootloader-version 2 --bl-settings-version 1 bootloader_settings.hex

 

3D. Merge and create a 2-in-1 or 4-in-1 hex file

a). Merge 2-in-1 (no Bootloader file required):

mergehex.exe -m s140_nrf52_7.2.0_softdevice.hex nrf52840_xxaa.hex -o merge.hex

 

b). Merge 4-in-1 (with Bootloader file & Bootloader settings file required):

mergehex.exe -m bootloader.hex bootloader_settings.hex  s140_nrf52_7.2.0_softdevice.hex nrf52840_xxaa.hex -o merge.hex

 

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4. Firmware flashing process

MDBT50Q-RX(USB-A)：Manual wiring is required to have the firmware uploaded.

Please refer to the article: Firmware Coding & DFU onto MDBT50Q-RX

MDBT50Q-CX(USB-C)：Built-in open bootloader included for simple DFU process..

Please refer to the article: User Manual of MDBT50Q-CX (nRF52840/nRF52833-based USB-C Dongle)

 

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Edited by Sales Manager: Ms. Jocelyn Tsai
Technical guidance provided by Firmware Deputy Manager: Mr. Stanley Huang

User Manual of MDBT50Q-CX (nRF52840/nRF52833-based USB-C Dongle)

Intro:

MDBT50Q-CX is an advanced version of Raytac’s MDBT50Q-RX(USB-A Dongle).

MDBT50Q-CX has a more compact size, equips an up-to-date Type C USB Connector, and it has a built-in open bootloader for simple DFU process.

If you’ve been developing projects using MDBT50Q-RX in the past, you can find out in this manual how MDBT50Q-CX makes firmware compiling and loading much easier than before.

If you want to load firmware into MDBT50Q-CX, no wiring is needed. 

Simply plug the dongle into your device and USB DFU will be available.

MDBT50Q-CX (USB-C Dongle, nRF52840/nRF52833 solution): Product link

Size: 15.10 x32.85mm (0.59x1.29inches)

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Table of Contents

A. Hardware intro

B. Software development environment setup

C. Firmware Implementation with NCS (nRF Connect SDK) or NRF5 SDK

D. Execute DFU (Device Firmware Update)

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A. Hardware Intro

 <Pin Allocation>

< Schematic> (Click on the image to redirect to product page for Higher resolution photo)

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B.  Software development environment setup

Option 1. Compile in NCS(nRF Connect SDK)

(1) Install nRF Connect for Desktop:

(2) Install Toolchain Manager and Programmer

(3) Install nRF Connect SDK (NCS) → V2.6.0 is recommended.

Option2. Compile in nRF5 SDK

(1) Download open source nRF5 SDK (Recommend: download the latest version:  17.1.0)

(2) Install Segger Embedded Studio v5.42a (Recommended version)

https://www.segger.com/downloads/embedded-studio/

※Welcome to contact Raytac sales team for v5.42a file of Segger Embedded Studio.

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C. Implement firmware in NCS (nRF Connect SDK) or NRF5 SDK

We will use the two example codes below for this demo:

C1. NCS (nRF Connect SDK):

Example code path: \v2.6.0\nrf\samples\bluetooth\peripheral_uart

New Distribution Partnership in Greater China Region

Raytac Corporation, a leading supplier of Bluetooth modules, announced a new distribution partnership with Weltrend Semiconductor, Inc. Weltrend has strong FAE team and their extensive footprint of distribution facilities makes them a valuable distribution partner. “We look forward to building our relationship and expanding the Greater China region to serve more customers.”

As a world-renowned supplier of BLE Bluetooth module, Raytac is dedicated to launching various kinds of modules to fulfill all developers’ needs and demands. Raytac’s modules are covered all Nordic solutions, including nRF51822, nRF52810, nRF52811, nRF52820, nRF52832, nRF52833, nRF52840 and nRF5340. Moreover, the modules are fully certified with not only Bluetooth SIG (QDID/DID/BQB), but also regional safety regulation in main areas such as FCC (USA), CE (EU), IC (Canada), TELEC (Japan), KC (Korea), SRRC (China), FCC(Taiwan), RCM (ANZ) , etc.

Raytac aims to build up a value chain to provide customers with a cost-effective and speed-time-to-market solution. Raytac also offers AT Command service allowing customers to adopt easily in IoT field.

Weltrend Semiconductor, Inc. Kaohsiung Branch, (Taipei Office)

Address: 11F-6, No. 736, Chungcheng Rd. Chungho District, New Taipei City 

http://www.weltrend.com.tw

Tel: +886.2.8226.9297

Raytac Corporation 勁達國際電子有限公司
A BT5.3 & BT5.2 & BT5.1 module maker based on Nordic nRF53 & nRF52 solution 
(nRF5340 & nRF52840 & nRF52833 & nRF52832 & nRF52820 & nRF52811 & nRF52810 & nRF52805)
www.raytac.com email: sales@raytac.com Tel: +886.2.3234.0208