Raytac Corporation is proud to announce that our application for Wi-Fi Alliance (WFA) certification on the AN7002Q series(based on Nordic's nRF7002 IC) has been successfully approved. This achievement reinforces our commitment to providing high-quality, reliable, and standard-compliant wireless solutions. By leveraging this certification, our modules ensure seamless interoperability, enhanced security, and superior performance for a wide range of IoT applications.
Advantages of Using Raytac Modules with WFA Certification:
Reliable and Secure Connectivity – Ensures seamless communication with other Wi-Fi-certified devices while meeting industry-leading security standards for stable and secure data transmission. Faster Time-to-Market – Pre-certified modules simplify compliance processes, reducing development time. Global Market Access – Certification helps meet regulatory requirements in multiple regions, expanding business opportunities. Significant Cost-Saving – Compared to the chip-on-board approach, using Raytac’s Wi-Fi module allows direct access to the Derivative programs(please click here for more descriptions), leveraging Raytac’s CID to minimize certification costs and save time-to-market.
To learn more about Wi-Fi certifications and Wi-Fi + BLE applications, feel free to contact us anytime at service@raytac.com.
Edited by Account Manager: Ms. Mandy Chao
Raytac Corporation 勁達國際電子股份有限公司 A Bluetooth, Wi-Fi, and LoRa Module Maker based on Nordic nRF54; nRF53: nRF52; nRF51; nRF7002 Semtech Specification: SX1262
We are thrilled to announce that Raytac Corporation will be participating in Embedded World 2025 from March 11 to March 13, 2025, at the Nuremberg Exhibition Centre in Germany.
IoT and Wireless technologies such as Bluetooth Low Energy (BLE), Wi-Fi, and LoRa...etc. continue to reshape industries worldwide, that's why Raytac is at the forefront, providing cutting-edge solutions that accelerate product development. Together with our partner, Nordic Semiconductor, we offer a comprehensive range of modules designed to meet the increasing demands of today’s connected world.
This year, we have exciting innovations to showcase:
Unveiling our new service: Customized OEM/ODM designing for customers.
These are just a few of the groundbreaking solutions we’ll be unveiling. You won’t want to miss the chance to experience these with us!
What to Expect at Our Booth:
Live demonstrations showing how Raytac’s modules can be implemented in multiple industries.
Discover how our modules can reduce development time and costs, making your projects more efficient.
One-on-one consultations with our experts to help you find the right solutions for your needs.
Stop by and visit us at: HALL 3 Booth 3-111 M2M Area
We would love to connect with you and discuss how Raytac can support your next project. Whether you're an engineer, developer, or business decision-maker, we have something for everyone at Embedded World 2025.
Uncertainties in Bluetooth Application Development
Bluetooth’s growing popularity comes with challenges during development. Common issues include hardware instability, software incompatibilities, and environmental interference. Accurate issue identification and resolution are keys to successful development.
Common Uncertainties Unstable Connections: Disruptions from wireless signals or physical obstacles. Pairing Failures: Devices unable to establish connections. Data Errors: Packet loss or corruption during transmission. Compatibility Problems: Protocol version mismatches affecting interoperability.
Efficient Bluetooth Issue Analysis Challenges like transmission speed limitations, data loss, connection failures, or protocol violations can arise. As Bluetooth signals travel wirelessly, precise analysis requires specialized tools. Nordic offers firmware integrated with Wireshark, flashable onto the Raytac MDBT50Q-CX-40 Dongle, enabling engineers to capture and analyze Bluetooth broadcast signals via USB. This setup streamlines issue identification and resolution. Below’s how to configure the Dongle for Wireshark reception.
Step 3: Press and hold the button on MDBT50Q-CX-40 and plug it into a PC USB port. Bootloader mode will be activated after the LED light is turned on. Then flash the firmware using nRF Programmer.
Step 4: Open the nRF Programmer and follow the below steps: Select the Device:
The device will appear as the name shown in below:
Add Firmware File:
Load sniffer_nrf52840dongle_nrf52840_4.1.1.hex into the Programmer:
Press “Write” to flash the firmware. After flashing, press “Select Device” again. If the Device name appears as nRF Sniffer for Bluetooth, the flashing is successful.
Set Up Wireshark Software Environment Step 1: Download & install nRF-Util: https://www.nordicsemi.com/Products/Development-tools/nRF-Util Step 2: Open MS-DOS and use the command nrfutil list to check if the ble-sniffer item is available. If not, install it using nrfutil install ble-sniffer.
Step 3: Download and Install Wireshark: https://www.wireshark.org/download.html. Step 4: Open Wireshark and navigate to: Help → About Wireshark → Folders. Step 5: Locate the string under Personal Extcap Path for the extcap directory, which will be an empty folder.
Step 6: Copy the files from nrf_sniffer_for_bluetooth_le_4.1.1\extcap (downloaded earlier) into Wireshark\extcap directory.
Step 7: After reopening, you should see an interface with a configurable icon next to the dongle.
Step 8: Edit → Configuration Profiles → Import → From Directory → Navigate to the directory nrf_sniffer_for_bluetooth_le_4.1.1\Profile_nRF_Sniffer_Bluetooth_LE and click “Select Folder”.
Step 9: The profile will be imported. Click OK to confirm.
After all the above is done, the setup shall be completed.
Capturing and analyzing Bluetooth packets After launching the program, you can see the following devices and Dongle settings. Double-click to start the packet capture process:
If you want to capture packets with PHY=125K, you can use the following settings:
Packet Analysis Method In Wireshark, select the device from the “Device” menu to capture and analyze broadcast packets.
User Cases – What sniffer can offer 1. Disconnection when transmitting over 20 bytes between Tablet and Raytac’s AT-Command Module: Through sniffer analysis, it was discovered that Raytac’s module requested a packet length of 251 bytes, but the tablet’s TX setting was limited to 27 bytes.
2. Broadcast Device Name containing invisible characters: The device could connect using a mobile app but failed to connect using Central’s code. From the sniffer interface shown below, the device name length is 11, but the Length field shows 13. The actual data length (Type length + Device Name) = 1 + 11 = 12, indicating an issue with the program’s broadcast name length.
3. Incorrect parameter settings causing issues with throughput or packet reception: Improper settings can lead to reduced throughput, incorrect data reception, or disconnections. The diagram below shows a correct setup with high-volume data transmission. The Protocol Length is 251, and the data transmission intervals are consistent, achieving optimal throughput.
Summary
Mastering hardware and software setups and effectively using packet analysis tools can boost development efficiency and enable high-performance Bluetooth applications.
