STMicroelectronics STEVAL-IDS001V4M

Overview

STEVAL-IDS001V4M from STMicroelectronics is an 868 MHz USB dongle evaluation board based on the SPSGRF-868 sub-1GHz RF module and STM32L151CBU6A ultra-low-power ARM Cortex-M3 MCU. It integrates SPIRIT1 transceiver, BALF-SPI-01D3 balun, chip antenna, and supports 2-FSK/GFSK/MSK/GMSK/OOK/ASK modulation at air data rates from 1 to 500 kbps. Used for rapid prototyping of wireless sensor nodes in Smart City infrastructure.

For engineers reviewing the STEVAL-IDS001V4M datasheet, STEVAL-IDS001V4M pinout, STEVAL-IDS001V4M application, or STEVAL-IDS001V4M equivalent, this board enables immediate GUI-based RF parameter tuning, firmware development via SWD, USB-hosted packet transmission testing, and validation of ISM-band link budget performance in battery-constrained environments.

Technical Context

The board implements a complete Sub-GHz RF evaluation platform where the SPIRIT1 transceiver handles physical layer functions including programmable modulation, frequency synthesis, and automatic packet handling, while the STM32L151CBU6A provides real-time protocol stack execution and USB CDC interface bridging. All RF matching and harmonic filtering are handled by the integrated BALF-SPI-01D3 balun.

USB connectivity uses a dedicated USB-to-serial bridge (USBLC6-2P6 ESD protection + M95640-RMC6TG EEPROM) enabling plug-and-play host communication. Power management includes LDS3985PU33R LDO (3.3 V @ 300 mA), BAT30F4 Schottky diode for USB/battery path selection, and multiple decoupling capacitors per supply rail.

Key Specifications

Availability

STEVAL-IDS001V4M is available at Aetrix Electronics and suitable for Smart City sensor gateways, industrial wireless monitoring nodes, Smart Home remote controllers, and Sub-GHz IoT prototyping requiring stable component supply and full regulatory-compliant RF reference designs.

Supply support for STEVAL-IDS001V4M 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, analog ICs, MEMS, power devices, and RF solutions for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL evaluation kit family, engineered to accelerate time-to-proof-of-concept for Sub-GHz wireless applications using SPIRIT1-based modules and STM32 ultra-low-power MCUs.

FAQ

Does STEVAL-IDS001V4M require external programming hardware?

No. The board includes an onboard SWD debug connector compatible with ST-LINK/V2-1 and supports drag-and-drop firmware updates via USB mass storage mode. No separate JTAG/SWD probe is needed for basic development or GUI interaction.

What regulatory certifications does the SPSGRF-868 module hold?

The SPSGRF-868 module is CE certified per ETSI EN 300 220-1 for 868 MHz SRD operation, with conducted and radiated emissions tested. Certification applies only when used per board layout and antenna configuration shown in DB2631 schematic and layout guidelines.

Can the STM32L151CBU6A be reprogrammed with custom firmware?

Yes. The MCU is fully accessible via SWD interface (SWCLK/SWDIO/NRST) and supports standard ARM toolchains (Keil, IAR, STM32CubeIDE). Bootloader and memory map are documented in RM0038 and DS10472 datasheets.

Is the chip antenna optimized for specific orientation or enclosure materials?

The chip antenna is tuned for free-space operation with PCB ground plane dimensions matching the board's 50 × 25 mm layout. Performance degrades within 5 mm of metal or high-dielectric materials; ST recommends maintaining ≥8 mm clearance from conductive surfaces in final enclosures.