Electric two-wheelers have become an important option for short urban journeys thanks to their convenience, cost-effectiveness and environmental friendliness. With the implementation of China's New National Standard for electric bicycles and the growing adoption of smart technologies, core vehicle control systems continue to evolve toward higher performance, enhanced safety and greater energy efficiency, delivering a smarter, more convenient and safer riding experience.

Solution Overview

This reference solution for electric two-wheeler instrument cluster and central control uses the MH2457 series MCU as its main controller, and implements UI display and intelligent control functions based on the FreeRTOS real-time operating system and LVGL graphics library. It communicates with on-board systems via RS-485 or CAN bus to enable vehicle status monitoring and control. Meanwhile, it supports Bluetooth connectivity with smartphones, offering features including passive keyless entry, call notifications, music playback, navigation screen mirroring and over-the-air (OTA) firmware updates.

In addition, the solution integrates NFC technology to support vehicle unlocking, locking, startup and parking, ensuring safer and more convenient operation. Designed for displays up to 7 inches, it is applicable to smart instrument clusters and central control screens for electric two-wheelers.

Key Advantages

• High-efficiency graphics processing powered by a high-performance CPU, DMA2D graphics accelerator and hardware JPEG decoder
• Support for RGB565/RGB888 display with rich color reproduction
• Single-power supply architecture with low BOM cost
• Startup in under 100 ms for improved user experience
• User-friendly development and compilation environment that reduces software development complexity
• Firmware encryption and tamper-proof design for enhanced system security
• Supporting reference designs including NFC unlocking and millimeter-wave radar sensing to speed up product development

Core MCU of the Reference Solution: MH2457

• High-performance processing: Typical operating frequency up to 288MHz, integrated 9.25MB RAM, and support for external Flash expansion, meeting the requirements of multitasking and large-capacity data storage.
• Rich peripheral interfaces: Supports 6× U(S)ART, 3× I2C, 2× I2S, 4× SPI, 1× QSPI, 2× CAN, USB and 10/100 Ethernet, fulfilling connectivity and function expansion demands across diverse scenarios.
• Simplified power supply and low-cost design: Single-supply operation simplifies system design and reduces BOM cost.
• Powerful graphics capability: Integrated hardware JPEG decoder and DMA2D graphics accelerator, resolutions up to 1280×800 for smooth, high-quality graphics rendering.
• Flexible display compatibility: Supports multiple display interfaces including MIPI DSI, RGB565/RGB888, DCMI and 8080/6800, to suit a wide range of end-product display needs.

This reference solution combines high-performance processing, flexible scalability, security and reliability, and fast development. It helps customers rapidly build intelligent instrument cluster and central control systems, reduce development complexity, and accelerate product time-to-market.