STMicroelectronics STEVAL-IDW001V1

Overview

STEVAL-IDW001V1 from STMicroelectronics is a Wi-Fi daughterboard designed to evaluate the SPWF01SA.11 Wi-Fi module, interfacing directly with the STM32F0DISCOVERY board or the STEVAL-PCC018V1 UART-to-USB bridge. It supports AT command evaluation via PC terminal and functions as a network co-processor for the STM32F0 microcontroller. Board dimensions are 53 mm × 65 mm and it includes integrated reset button and power LED.

For engineers reviewing the STEVAL-IDW001V1 datasheet, STEVAL-IDW001V1 pinout, STEVAL-IDW001V1 application, or STEVAL-IDW001V1 equivalent, this evaluation board enables rapid prototyping of embedded Wi-Fi connectivity using ST's certified 802.11b/g/n module, UART-based host interface, and dual-board integration options with discovery kits and USB bridges.

Technical Context

The STEVAL-IDW001V1 implements a hardware-level interface between the STM32F0 microcontroller and the SPWF01SA.11 Wi-Fi module via UART (TXD1/RXD1), GPIO control lines (RESETN, BOOT0, GPIO0–GPIO15), and SPI (GPIO1–GPIO3) for firmware configuration. It routes all required signals-including clock enable (16 MHz_EN), low-power clock (LP_CLK), and debug JTAG pins-to external headers for flexible system integration.

Power is supplied via +5V_Vin or +3.3V rails, regulated internally to 3.3 V and 2.5 V for module and logic compatibility. The board integrates CP2102-based USB-UART bridging capability when used with STEVAL-PCC018V1, enabling direct PC-side AT command testing without requiring a separate MCU host.

Key Specifications

Availability

STEVAL-IDW001V1 is available at Aetrix Electronics and suitable for embedded Wi-Fi prototyping, STM32 ecosystem development, and industrial IoT gateway evaluation requiring stable component supply and documented reference integration paths.

Supply support for STEVAL-IDW001V1 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, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and wireless solutions for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) platform family, engineered to accelerate time-to-proof-of-concept for ST's connectivity modules-specifically enabling quick validation of Wi-Fi integration with STM32 microcontrollers.

FAQ

Does STEVAL-IDW001V1 include the SPWF01SA.11 module?

Yes, the SPWF01SA.11 Wi-Fi module is fully integrated on the board. It is soldered and pre-configured for immediate evaluation, eliminating the need for separate module procurement or mounting.

Can STEVAL-IDW001V1 operate standalone without STM32F0DISCOVERY?

No-it is a daughterboard requiring a host board. It must be mated with either the STM32F0DISCOVERY or the STEVAL-PCC018V1 to provide power, UART bridging, or MCU processing; no onboard microcontroller or USB interface is included.

What firmware interface does it support?

The board supports AT command set communication over UART (TXD1/RXD1) with the SPWF01SA.11 module. Firmware updates and configuration are performed via serial commands, compatible with HyperTerminal or similar terminal utilities.

Is JTAG debugging supported for the host STM32F0?

Yes-the board provides full 20-pin ARM JTAG/SWD connector (JTMS, JTCK, JTDI, JTDO, JTRST) routed to the STM32F0DISCOVERY interface, enabling real-time debugging and flash programming of the host microcontroller during Wi-Fi co-processor development.