HVAC (heating ventilation and air conditioning) systems consumes nearly 20% of electricity supplied in the world. For companies and public facility organizations, optimizing energy efficiency of HVAC systems is not only a social responsibility, but also a key driver for their endeavor on cost optimization and operational excellence. HVAC vendors have been relentlessly working hard to optimize the system’s energy efficiency. Conventionally they put almost all effort on improving cold or heat sources. Recent development of IoT and digital technologies, however, created a new way for the HVAC industry to build smart energy management solutions. Such technologies are more oriented to equip the HVAC system with capability of timely and precise perception of fluctuating cooling or heating demand of its serviced space. The system can hence intelligently adjust the cooling or heating output based on such perception. Adopting Bluetooth low energy technologies significantly facilitates HVAC vendors in implementing such new smart solutions. Challenges Although traditional HVAC systems boast of some degree of automation, they can hardly perceived conditions such as temperature and humidity of the target space. Even if they are sometimes connected with a few sensors, connections were completed with cables, which make another hassle. From the perspective of the overall system, such sensors are still information silos though. In aspect of actuators, traditional systems also adopt conventional PC cabling, which is costly in system integration engineering and subject to weathering and rodent after installation. Traditional HAVC systems adopts cable connected panels for man-machine interaction. It not only makes remote monitoring and controlling a costly effort but also hindered the introduction of artificial intelligence into the arena. Solution By embedding Bluetooth low energy modules into sensors, actuators, and control panels, constituents of the HVAC system can agilely weave into an organic web in its serviced space. The modules can forward sensor data such as humidity and temperature northward to the upper device. After data processing, the upper device will work out operating commands. Such command data are also sent via the module to actuators. The status of the HVAC system will be shown to local or remote users via wireless terminals. In this way, it is convenient for users anywhere to monitor and control the HVAC system. With ultra-long autonomy, Bluetooth-enabled sensors can be flexibly deployed in the HVAC system’s serviced space, ushering in the opportunity of implementing AI applications which require feeding of real-time big data. With a large amount of sensing data uploaded to the host computer and hence to the cloud server, the AI solution provider can is able to train an optimal energy consumption algorithm. By using such ongoing optimizing algorithm, users can enjoy high quality cooling or heating services with the lowest energy consumption. Re...

Shenzhen, Guangdong, China, -Nov. 21, 2023 / -- RF-star, a leading provider of wireless module solutions, is pleased to announce its membership in the Car Connectivity Consortium (CCC) to further progress with the development of Bluetooth + Ultra Wide Band (UWB)+NFC digital keys for the automotive industry. In July 2022, the CCC launched the latest Digital Key Release 3 V 1.1. The universal cross-industry standard adds UWB in combination with Bluetooth® Low Energy connectivity and Near Field Communication (NFC) to have contactless, location-aware, and secure communication between smartphones and vehicles. RF-star, as a pioneer in wireless IoT technologies of BLE, UWB, NFC, ZigBee, Matter, Thread, Wi-SUN, etc. has been developing a complete set of automotive digital key solutions combined with the UWB, Bluetooth® Low Energy, and NFC technologies. UWB, a cutting-edge technology that utilizes radio waves to measure distances with extreme precision, is a key component of RF-star's digital key solutions. Integrated with UWB technology, the new solution based on its own automotive-grade chip modules not only ensures secure and reliable communication between smartphones and vehicles, but also enables advanced features such as accurate ranging and remote vehicle control. Since 2010, RF-star has been engaging in the wireless connectivity area, especially in BLE technology for more than 10 years. In former BLE PEPS solutions, RF-star several automotive-grade Bluetooth modules have been successfully installed into cars and mass-produced, such as low-power modules based on TI CC2642R-Q1. The previously released CC2340R5 module RF-BM-2340B1 and its subsequent CC2340 series modules are also suitable for digital key applications. This series of modules has made Bluetooth Low Energy car access antenna node reference design. Hence, RF-star's expertise in BLE technology and Bluetooth modules complements its UWB digital keys, easily achieving identity authentication, data interaction, and long-range positioning with ultra-low-power consumption. The combination of these technologies realizes a 40m-100m wake-up service and starts the engine with pinpoint accuracy within decimeter-level positioning. The introduction of UWB offers unparalleled convenience and security beyond today’s classic keys. What's more, as a new member of the Intelligent Car Connectivity Industry Ecosystem Alliance (ICCE) in the first half of the year, RF-star with major players had been fortunate to draft UWB System Requirements to advance the development of digital key systems. “With the implementation of the CCC digital key, the vehicle-to-device connectivity is imperative. It is a great honor to be a member of the CCC at this time and participate in the innovation of this wireless connectivity,” said King Kang, CEO of RF-star. “RF-star will propel unceasingly the development of the Internet of Vehicles industry and jointly build UWB ecosystem with global leading RF chipsets, carmakers...

BLE Pulse Oximeter. IoMT (Internet of Medical Things) is developing day by day. Absolutely, the pace of IoMT development has accelerated in the era of the epidemic. The remote control and continuous monitoring are necessary for us to find what the body problem is. Bluetooth is the most suitable solution for medical devices. Make the medical device smart Build the interaction between the device and mobiles Real-time monitor and alarm Monitoring data storing and analyzing Let's see what devices have been on the market now. For example: Temperature sticker, Heart rate sticker, Blood sugar sticker, Blood pressure sticker, Blood oxygen sticker The stickers can help those with heart, Blood sugar, blood pressure, and blood oxygen problems.

Sales of electric vehicles have been witnessing dramatic growth in recent years as their prices keep dropping while range keep rising. The trend further boosted the demand for EV charging piles. Unfortunately, in such a mega trend, some drawbacks of traditional charging piles were brought to attention. Just to name a few: 1) many installed charging piles are from well being utilized; 2)some of them are vulnerable to environmental interference; 3) and some impose risk to undermine safety use. Some vendors consider to have Bluetooth embedded to shake away the hassles mentioned above.  RFstar’s RSBRS02ABR BLE module is such a product for this application with solid track record in this arena. This model enabled quite many OEMs in China and abroad to streamline design and assembly operations. Challenges for Charging Pile System Traditional charging piles are facing a few challenges in technology. Challenge 1: The layout and deployment of charging piles failed to cover the need of EVs geographically, causing a phenomenon that EVs in high traffic area cannot access charging piles and in areas with very low traffic many charging piles remain idle. Challenge 2: Public EV charging spaces prone to be occupied by fossil fuel cars. And they also suffer high ratio of defect and even cease to work. Challenge 3: Some traditional speed charging piles are vulnerable to hazard conditions. The internal communication of their battery system are not immune to problems, that could cause overcharging and overheating issues, making  the electric vehicle under charging to inflame. Solution Facing the above challenges, mainstream manufacturers started to apply Bluetooth technology in charging pile solutions. For such specific application, RFstar’s RSBRS02ABR Bluetooth module has unique advantages as follows: Utilization rate dramatically improved By introducing RFstar’s BLE module RSBRS02ABR into charging pile solution , OEMs can significantly reduce the wiring work while achieving higher flexibility, incurring less installation cost, and effectively meet the demand for flexible distribution of charging stations.Furthermore, adding the Bluetooth module shake off the hassle of cable networking in charging pile installation. It can transmit data from the charging pile to your mobile through Bluetooth. After the mobile phone is connected to the Internet, the data can be uploaded to the cloud. In this way, it achieves excellent convenience to locate the charging pile, and complete transaction. Higher security With Bluetooth modules embedded, the charging pile can use wireless communication to track and transmit such data as charging time, voltage and current, etc. to the terminal devices. With the support of such data, we can automatically manage the charging status and monitor the charging process in real-time. Moreover, it would send alert or alarm once any faults were detected，thus to avoid damage to the equipment, and prevent potential hazards, thereby reducing ...

RF-star, a leading global provider of IoT (Internet of Things) wireless solutions and wireless RF modules, is thrilled to announce that its CC2340R5 Bluetooth Zigbee modules have been officially listed on the Texas Instruments (TI) website and marketed around the globe. RF-star new products’ access to TI shows high recognition of its wireless modules again, further strengthening their longstanding partnership. Designing Low-Power Modules and Wireless Solutions Based on TI’s Chips RF-star launched the first BLE module in 2010 and has been TI's official IDH for over a decade. RF-star has created sustainable collaboration by developing CC2652 series (CC2652R, CC2652RB, CC2652P, CC2652R7 and CC2652P7) 2.4GHz RF modules and CC1352 series (CC1352R, CC1352P, CC1352R7 and CC1352P7) multi-band wireless modules. These modules respectively support multiple protocols like Zigbee, Thread, Bluetooth Low Energy, 6LoWPAN, MIOTY, Bluetooth mesh, Wi-SUN, and more. What’s more, the DMM (Dynamic Multiprotocol Management) enables the modules to work with different RF protocols simultaneously. They are widely used in IoT systems, medical devices, smart homes, sensor networks, industrial automation, smart grids, and remote controls. RF-star low-power Bluetooth modules and solutions based on the former generations of TI CC254x (CC2540 and CC2541), and CC264x (CC2640 and CC2642) chips can work in Bluetooth Low Energy serial port transparent transmission (bridge) protocols. The 2.4GHz BLE modules with UART port design can be regarded as a slave, a master, or a master-slave simultaneously, or a Beacon. The Bluetooth solutions greatly shorten the development circle and have won the favor of new energy vehicles, consumer electronics, health and medical equipment, sports and fitness, retail, and industrial applications. 5 RF-star CC2340R5 Bluetooth ZigBee Modules Are Available Now The CC2340R5 series listed on TI’s official website this time has 5 models. All of them are embedded with the UART transparent transmission protocol. The RF-BM-2340B1 (PCB antenna) and RF-BM-2340B1I (IPEX version) wireless modules have been announced as Pin-2-Pin compatible. They offer 24 GPIOs for rapid development and can be utilized as MCU modules with I2C, SPI, and UART peripheral applications. Their versatile applications range from medical and automobile to new energy and industrial sectors. Similarly, the RF-BM-2340A2 (PCB antenna) and RF-BM-2340A2I (IPEX version) modules are also Pin-2-Pin compatible. Featuring 12 GPIOs and a wide array of BLE5.2 serial port AT commands, these modules offer abundant possibilities. The small size and cost-competitive design make them suitable for various portable medical and consumer electronic applications. As for the RF-BM-2340C2 Bluetooth LE module with a chip antenna, it boasts a compact size of 8 mm × 8 mm. This ultra-compact module is specifically designed for applications that demand smaller dimensions and require shorter transmission ranges. Over...

Microinverter is coming. How can wireless connectivity technology work in the microinverter? Absolutely, make it smart Achieve remote control Become one of the devices in your smart home Simple installment High safety control Improve the power generation efficiency More functions of microinverter: With independent MPPT (max. Power Point Tracking)  control for each PV component Improve overall efficiency in the face of shading or component performance differences

The rapid development of new energy vehicles arena bolsters exponential growth of the power battery industry, which further boosts the development of BMS technology. Power battery makers such as Sunwoda, BYD, Evebattery, and Neusoft Reach are increasingly prone to adding Bluetooth modules inside the BMS to achieve wireless BMS application. Replacing the traditional cabled packaging method,a BLE solution can dramatically reduce the size of the BMS system, and making it more secure, more reliable, and more affordable. Challenges for BMS Systems The traditional BMS technology are facing quite a few challenges.  Challenge 1: the traditional BMS adopts a space consuming wired architecture, it is not only costly in maintenance, but also difficult in meeting the demand for continuous real-time battery monitoring. Challenge 2: the traditional transmission method of the BMS is relatively high power consuming and weak in scalability. Challenge 3: the cost of the traditional BMS system is very high. The wire harness (often copper wire) and plug-in connectors will add extra weight and cost to the solution. And as it also requires manual assembly, it results in a high labor cost. BMS Solutions with Bluetooth Technology Facing the above challenges, mainstream manufacturers start to apply Bluetooth modules to BMS systems and develop wireless BMS technology. Bluetooth technology makes the BMS package much more compacted, less power consuming. And since it significantly reduces application of wires and saves the labor of wire assembly, it dramatically reduces the cost of the whole solution. By ensuring successfulinnovation of BMS makers with its excellent performance, RF-star’s RF-BM-BG22A1 Bluetooth module has gained high recognition in the automotive field. Followings are the unique advantages of the product: More Intelligent and More Flexible The BMS system requires no cable connection after adding the RF-star’s RF-BM-BG22A1 Bluetooth module. With embedded BLE modules, it can use wireless communication to track the status and performance of every single battery, transmit such data as voltage, current, etc. of the battery pack to the PDA in real-time. With support of such data and some precautious signals, the charging and discharging processes of the battery can be well managed. Moreover, it also reduces the complexity of the whole system, saving spaces and improving reliability of the BMS. More Affordable With Bluetooth modules embedded, the BMS solution shakes away from the hassle of  cables and tedious harnesses labor, saving significant assembly cost, and making it more align to the the current trend of lightweight design in the automotive industry. Based on Silicon Labs chip, RF-star’s RF-BM-BG22A1 based on EFR32BG22 chip is a low-energy Bluetooth module that supports Bluetooth 5.2. It has excellent low power consumption performance and strong anti-interference ability. The product has passed many authoritative certifications, such as Reach cert...

On Sep. 22nd  2023, the 20th International Internet of Things Exhibition (IOTE 2023) was rounded off at Shenzhen World Expo Exhibition & Convention Center. As one of the exhibitors, RF-star presented a lineup of standout RF modules and advanced wireless IoT solutions, attracting masses of attendees from diverse industries to delve into our innovative solutions. Figure 1 RF-star Displayed Its Wireless Modules and IoT Applications At the exhibition, a series of wireless modules with BLE, Wi-Fi, ZigBee, Sub-1G, Thread, Matter and UWB protocols including CC2340, CC2530, CC2652, CC2651, CC1310, CC1312R, CC1352, EFR32BG22, EFR32BG24, EFR32MG24, nRF52810, nRF52832, nRF52840 series and the Bluetooth Beacon devices were on show. Besides, it focused on showcasing excellent IoT application solutions, eg. portable medical devices, Bluetooth PEPS, EV chargers, BMS, UWB digital key, and micro-inverters. The cutting-edge products and applications made a big splash in the IoT field. Figure 2 RF-star Team Shared Wireless Modules and Solutions RF-star's team engaged in extensive discussions and interactions with visitors at the exhibition. They showcased the stunning features and advanced technologies of RF-star products, along with use cases in various industries. The participants highly appreciated the rich function and high performance of RF-star's wireless solutions, leading to thought-provoking discussions. Figure 3 RF-star Marketing Director Leo Exchanged Ideas with Partners Furthermore, RF-star actively participated in productive discussions and dialogues with fellow exhibitors and industry partners. We shared the latest industry trends, challenges, and opportunities, explored the possibility of cooperation, and sought mutual growth. These interactions serve as a strong basis for forming solid partnerships in the future. The IOTE2023 exhibition came to an end, while IOT development never stops evolving. We would like to thank all visitors, partners, and staff for their support and attention. With the vision of “Wireless Creates Infinite Possibilities”, RF-star will keep up with IoT trends and technology, and continue to provide innovative wireless products and solutions to empower the Internet of Things industry to seamlessly connect with the world. About RF-star Shenzhen RF-star Technology Co., Ltd. (RF-star) is a leading supplier of wireless RF solutions and low-power modules with an excellent industry reputation and credibility. As the official third-party IDH of Texas Instruments for more than a decade and a trusted partner for customers worldwide, RF-star delivers expertise in design, manufacturing, production, and customized development. For more information, please contact us below: Website: www.rfstariot.com E-mail: info@szrfstar.com Social media: https://www.linkedin.com/company/shenzhen-rf-star-technology-co-ltd-/ https://www.youtube.com/channel/UCrnTUaX1HaoF9KMjFtWvr8Q https://www.facebook.com/szrfstars

Indoor Positioning Automotive is surrounding our daily life. Everyone has the experience of parking cars in the underground parking. It is a big problem to find our car without direction at such sites. As the GPS/BeiDou/Galileo cannot work indoors, Beacon is the best choice for indoor positioning. It uses the RSSI to do the locating. The cheaper price and the various product forms make it easily deploy. AoA AoD has also energized the Beacon products, which achieves better positional accuracy. Use RF-star BLE module to do your Beacon product. We also support the OEM and ODM on the Beacon product.