STMicroelectronics STEVAL-IHI001V1

Overview

STEVAL-IHI001V1 from STMicroelectronics is a stand-alone demonstration board simulating a modern washing machine user interface, built around the ST7LITE49M 8-bit MCU and STLED316S LED driver with integrated key-scan. It supports 3 displays (8-segment, common-anode), 32 LEDs, 19 programmable wash cycles, adjustable spin speed, LED brightness control, and lamp-test functionality.

For engineers reviewing the STEVAL-IHI001V1 datasheet, STEVAL-IHI001V1 pinout, STEVAL-IHI001V1 application, or STEVAL-IHI001V1 equivalent, this board serves as a validated reference for appliance HMI design, capacitive touch extension via STEVAL-IHI002V1 daughter board integration, and I²C-based LED/key interface prototyping in white goods development.

Technical Context

The board implements a complete, self-contained washing machine UI simulation using an ST7LITE49M MCU (8-bit, 16 KB Flash, I²C master) to manage program logic, timing, and peripheral control. The STLED316S drives six 8-segment digits and scans up to 16 keys via dedicated KSx/SEGx pins, enabling simultaneous display update and tactile input detection.

Power is supplied directly from a standard AC notebook adapter (5–30 V input), regulated by an L5970D DC-DC converter. An ICC connector provides I²C expansion capability, while a dedicated connector enables automatic detection and integration of the STEVAL-IHI002V1 capacitive touch daughter board.

Key Specifications

Availability

STEVAL-IHI001V1 is available at Aetrix Electronics and suitable for white goods HMI validation, I²C peripheral interface testing, and capacitive touch integration prototyping requiring stable component supply and documented reference design traceability.

Supply support for STEVAL-IHI001V1 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference platforms that demonstrate real-world implementation of ST's MCUs, drivers, and human-machine interface solutions for home appliance control systems.

FAQ

Is STEVAL-IHI001V1 still in production?

No. STEVAL-IHI001V1 is marked "Obsolete Product(s)" in its official STMicroelectronics data brief (Rev 1, November 2008). It is no longer manufactured or supported with new silicon, but remains available as a legacy evaluation asset for design reference and educational use.

Can STEVAL-IHI001V1 operate without the STEVAL-IHI002V1 daughter board?

Yes. The board functions fully as a stand-alone washing machine UI simulator with rotary wheel, tactile buttons, LED displays, and brightness control. The STEVAL-IHI002V1 is optional and adds capacitive touch capability via STMPE1208S - automatic detection occurs only when physically connected.

What power supply specifications are required?

A standard AC-to-DC notebook adapter delivering 5–30 V DC is required. The onboard L5970D buck regulator accepts this wide input range and delivers stable 5 V to the MCU, LED driver, and peripherals. No external voltage regulation is needed.

Does the board include firmware, and is source code available?

The board ships with pre-programmed firmware enabling full washing machine UI simulation. ST did not publicly release source code for STEVAL-IHI001V1; however, the ST7LITE49M's architecture and I²C register mapping for STLED316S are fully documented in respective ST datasheets for custom firmware development.