STM32WLE5 x Lierda LoRa module contributes to the stunning show at the opening ceremony of the Asian Paralympic Games

LoRa, which stands for "Long Range", is an ultra-long-distance wireless transmission solution based on spread spectrum technology. With the advantages of security, autonomy, and controllability, LoRa technology has become the most widely used unlicensed spectrum wide-area communication network in the world. According to data from professional institutions, more than 173 countries around the world have deployed LoRa or LoRaWAN systems, with a total of more than 5 million LoRa gateways and more than 270 million LoRa terminal nodes deployed. The market prospects are evident.

The opening ceremony of the Asian Paralympic Games was held in the "Big Lotus" of the Hangzhou Olympic Sports Center Stadium with a large number of people, forming a complex electromagnetic environment - mobile phones, wireless walkie-talkies, wireless microphones, wireless microphones, wireless remote controls and other equipment are intensively present, and wireless communication is extremely difficult. Vulnerable to interference resulting in packet loss, packet errors, etc. Therefore, the customer configured the Lierda LoRa transparent transmission module WB26 series on the participating equipment. Compared with the traditional communication module, the anti-interference capability is improved by nearly 28% (co-channel suppression ratio: 19dBm), and a complete built-in The data check and retransmission mechanism can demodulate useful signals below the environmental noise level, providing a stable wireless communication link for the visual effects transmission of the opening ceremony program. In the end, during the live broadcast, it lived up to expectations and delivered a "zero error" answer sheet.

• Easy to use : Realizing frame format interaction through the serial port, users can directly develop applications without spending a lot of time on the protocol, greatly shortening the development cycle;

• Multiple working modes : supports command, transparent transmission, and dual-line mode, and the same module can be used to switch applications in different scenarios;
• Flexible parameter configuration : supports configurable power, speed, and frequency points, and customers can choose as needed;

• Configurable power consumption : supports continuous sleep, periodic sleep, and active state. It can also wake up quickly in the sleep state, making it more flexible and convenient to use.

With the help of this module, customers do not even need to understand the underlying principles of LoRa and can directly process user data through the serial port. Developers can also focus on the development of application layer functions, reducing development difficulty and speeding up the implementation of the overall project.

The STM32WLE5x microcontroller is a single-core product in the STM32WL Sub-GHz product series, with a main frequency of up to 48 MHz, including an arm® Cortex®-M4 core and DSP, as well as up to 256 KB flash memory and 64 KB SRAM.

Hangzhou, known as the "Digital City" and the "Internet Capital", used technology to eliminate the boundaries of time and space during the Asian Games and Asian Paralympic Games, allowing the digital world and the real world to resonate at the same frequency. Lierda is fortunate to have contributed to the Asian Games with its profound accumulation of Internet of Things technology. In the future, Lierda will continue to leverage its technological advantages and rely on LoRa's flexible networking and other advantages to continuously promote the improvement of communication transmission security and reduction of power consumption to meet market demand.

To learn more about STM32WL, please click " Read the original text " below.

---

© THE END

Service number

Follow STM32

Video number

Station B account

Click "Read the original text" to learn more

Your sharing, likes, and watching

I like all of them