The Bluetooth + NFC smart keyless entry system based on NXP KW36 and NXP NCF3320 can authenticate identity, open the door and start the engine through Bluetooth and NFC functions. The system supports a variety of Bluetooth devices (mobile phones, bracelets, etc.) and mobile phone NFC or NFC cards to enter and start the vehicle.
As people have higher and higher requirements for car intelligence and comfort, keyless entry and one-button start systems have become important manifestations of intelligence and comfort. The development of car keyless entry systems has entered the era of intelligence. BLE and NFC have become the core technologies of the smart entry system. To adapt to the intelligent development trend of car keyless entry, the Bluetooth + NFC smart keyless entry system based on NXP KW36 and NXP NCF3320 can authenticate identity through Bluetooth and NFC functions, open the door and start the engine. The system supports a variety of Bluetooth devices (mobile phones, bracelets, etc.) and mobile phone NFC or NFC cards to enter and start the vehicle.
► Scenario application diagram
► Product entity diagram
► Showcase photos
► Scheme block diagram
► NXP App Demo: Demo for BLE communication
► NXP App Demo: Demo for NFC to open and lock the door
► NXP App Demo: Demo for NFC engine switch
► Core technical advantages
1. Support mobile phone Bluetooth and mobile phone NFC function authentication at the same time to open the door and start the car. 2. A variety of encrypted security identity authentication and support UWB positioning algorithm. 3. Bluetooth and NFC chips that comply with vehicle regulations. NFC unlocking is an alternative to BLE unlocking, in case Bluetooth devices, such as mobile phones, bracelets, etc. are out of power, NFC technology can still be used to unlock. 4. Integrated small HS-CAN SBC supports CAN FD communication and wake-up. 5. Small size can be placed in the door handle. 6. Compared with the previous IMMO keyless entry, the cost of Bluetooth keyless entry is lower and it has a competitive advantage. 7. Two-way interaction, support Bluetooth mobile phones, bracelets and other screen devices to monitor vehicle conditions. 8. It can support up to 8 BLE 5.0 user connections. The primary user can authorize the secondary user and set the time.
► Solution specifications
1. Arm® Cortex®-M0+ processor, 32-bit MCU, 512KB Flash, 64KB SRAM, 8KB EEPROM, 48MHz. 2. CAN & LIN connection support. 3. NCF3320 supports near field communication distance up to 10cm. 4. BLE communication distance can reach 30-50 m. 5. DC 9V to 40V wide power input. 6. Low power consumption-Transceiver current (DC-DC step-down mode, 3.6 V power supply)-Typical Rx current: 6.3 mA-Typical Tx current: 5.7 mA (0 dBm output)-Low power mode (VLLS0) current: 258 nA
IC MCU 16BIT 128KB FLASH 48TQFP
IC MCU 32BIT 256KB FLASH 64LFBGA
IC MCU 16BIT 256KB FLASH 28SSOP