BLE Automotive Smart Key — Product Specifications
Overview
A modern Bluetooth Low Energy (BLE)–based automotive smart key designed to provide secure passive vehicle access, engine start, and remote control functions. The smart key enhances user convenience while maintaining high security standards suitable for automotive environments.
Key Features
- Passive entry & exit with automatic door unlock/lock when approaching or leaving the vehicle
- Passive engine start without inserting a physical key
- Remote vehicle functions including lock/unlock, trunk release, light flash, and horn control
- Secure BLE communication with AES-128 encryption and rolling codes
- Low power consumption with coin-cell battery life exceeding one year
- Compact and ergonomic design suitable for pocket or keychain use
Technical Specifications
| Feature | Specification |
|---|---|
| BLE Version | Bluetooth 5.0 |
| Frequency Band | 2.4 GHz ISM Band |
| Maximum Range | 5 – 20 meters (typical) |
| Data Rate | 1 Mbps |
| Security | AES-128 encryption, rolling codes, MITM protection |
| Connection Interval | 7.5 – 4000 ms |
| Battery | CR2032 coin-cell or rechargeable Li-Po |
| MCU | nRF52832 / STM32WB series |
| Antenna | PCB antenna or chip antenna |
| Operating Temperature | -20°C to +60°C |
| Compliance | ISO 26262, AEC-Q100, EMC tested |
Optional Add-ons
- Biometric authentication integration (fingerprint or facial recognition)
- Mobile app–based digital key support
- Over-the-air (OTA) firmware updates