Smart-lock reference design runs on an ST MCU

STMicroelectronics Pty Ltd

Tuesday, 01 June, 2021


Magic Information, China’s Artificial Intelligence of Things (AIoT) fingerprint-recognition technology provider, has launched a smart-lock reference design based on AIoT fingerprint recognition running on an STMicroelectronics STM32WB55 Bluetooth LE (BLE) microcontroller (MCU) that manufacturers can integrate into their designs to make smart locks.

The reference design leverages the dual-core (Arm Cortex M0+ and M4) advantages of the STM32WB55, designed with high interoperability between the hosting MCU and fingerprint recognition as well as Bluetooth LE 5.2. The Magic Information fingerprint-recognition algorithm runs on the high-performance STM32WB55 MCU, which also enables recognition and unlocks the device in as fast as 0.3 seconds while ensuring ultralow power consumption.

“There is increasing demand for locks that offer completely keyless operation. Restrictions such as power consumption, size and user experience make these locks extremely challenging to deliver,” said Weiwen Yang, CTO of Magic Information.

“The combination of Magic Information’s industry-leading technology in embedded fingerprint recognition running on an STM32WB MCU with BLE meets the challenge. Magic Information will offer a turnkey solution for the whole smart-lock industry. Meanwhile, a platform with APIs for various applications is also available to help our clients develop product/business innovations, with outstanding quality and performance assured.”

“With the BLE 5.2 and outstanding processor performance and power efficiency of the STM32WB running Magic Information’s fingerprint recognition, their turnkey reference design solution integrates compactness in system robustness and performance efficiency,” said Arnaud Julienne, Vice President, Head of Marketing and Applications of MDG, IoT/AI Competence Center and Digital Marketing, Asia Pacific Region, STMicroelectronics.

“Building on the high-level security of the STM32WB, fingerprint recognition enhances the system-level security for markets where it really matters, such as access control and medical devices.”

A variety of fingerprint sensors, sizes (including 80 x 64, 112 x 88, 176 x 64 and 160 x 160) and packaging methods are currently available. The turnkey solution has been qualified with mass productions. Improved efficiency in product building/development can also be expected, which can shorten the time to market to within 20 weekdays.

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