STMicroelectronics STEVAL-ILL024V1

Overview

STEVAL-ILL024V1 from STMicroelectronics is an STM32F103VB-based evaluation board designed as the control unit for LED matrix display systems, featuring RS-485/CAN inter-module communication, GPS interface via USART, microSD card storage, PS/2 keyboard configuration, and .wav audio playback capability.

For engineers reviewing the STEVAL-ILL024V1 datasheet, STEVAL-ILL024V1 pinout, STEVAL-ILL024V1 application, or STEVAL-ILL024V1 equivalent, this board supports rapid prototyping of intelligent outdoor signage with synchronized positional data, configurable display modes (9 modes × 9 speeds), and embedded audio feedback in industrial and transportation display systems.

Technical Context

The board implements a dual-role MCU architecture where the STM32F103VB operates either as master (issuing display commands) or slave (executing received commands on the STEVAL-ILL025V1 panel), coordinated via RS-485/CAN physical layer transceivers. It integrates dedicated hardware interfaces including USART for GPS module connection, SPI for STP16DP05 LED driver control, and SDIO for microSD card access.

Display configuration is supported through both PS/2 keyboard input and Windows HyperTerminal™ serial command interface, enabling real-time mode/speed selection without firmware reflash. Audio playback uses onboard DAC and amplifier circuitry to drive external speakers from prerecorded mono .wav files stored on microSD.

Key Specifications

Availability

STEVAL-ILL024V1 is available at Aetrix Electronics and suitable for LED signage development, transportation information systems, and industrial human-machine interface prototyping requiring stable component supply and legacy design continuity.

Supply support for STEVAL-ILL024V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, power management, sensors, and automotive ICs with broad industrial and consumer reach.

This board belongs to ST's STEVAL (ST Evaluation) series-designed specifically to demonstrate system-level integration of ST MCUs with companion analog, power, and interface components in real-world applications like smart displays and embedded control.

FAQ

Is STEVAL-ILL024V1 still in production?

No-STMicroelectronics has marked STEVAL-ILL024V1 as obsolete per Doc ID 16076 Rev 1 (August 2009). It remains available through authorized distributors and Aetrix Electronics for legacy design support, repair, and documentation reference purposes only.

What display panel is compatible with this board?

The STEVAL-ILL024V1 is designed exclusively for use with the STEVAL-ILL025V1 LED matrix display panel. The two boards form a matched pair: the control unit drives the panel via dedicated ribbon cable and STP16DP05 driver interface, with timing and scan logic optimized for that specific panel resolution and topology.

Can I replace the STM32F103VB with a newer MCU?

No direct replacement is supported-the board's PCB layout, firmware, and peripheral routing (e.g., STP16DP05 SPI timing, PS/2 keyboard decoder logic, CAN/RS-485 signal integrity) are tightly coupled to the STM32F103VB's pinout and peripheral set. Migration requires full schematic redesign and firmware re-architecture.

Does it support real-time clock (RTC) functionality?

Yes-the board leverages the STM32F103VB's built-in RTC peripheral, synchronized via GPS-derived time stamps received over USART. Latitude, longitude, and UTC time are parsed from NMEA 0183 sentences and displayed alongside user content on the LED matrix.