VC-02 Voice Development boarf

VC‑02 Voice Development Board – GSM‑Integrated Voice Engine

The VC‑02 is a compact development platform engineered for rapid deployment of voice‑enabled GSM applications. It couples a high‑performance SIM800S GSM module with a Cortex‑M0+ microcontroller, offering RF front‑end, voice codec, and firmware hooks in a single board. Designed for embedded developers, the module provides full voice call handling, SMS handling, and data connectivity while the MCU runs real‑time audio processing and control logic.

With an integrated 2.4 V‑12 V power rail, crystal‑grade crystal oscillators, and a 3.5 mm audio jack, the kit supports both analog and digital audio streams. The board exposes UART, SPI, I²C, and GPIO interfaces for firmware debugging and peripheral expansion. Robust hardware design with EMI filtering and a certified GSM antenna slot ensures reliable performance in mobile and industrial environments.

• Key Spec 1: Integrated SIM800S GSM module – 2G/3G voice, SMS, GPRS with built‑in RF front‑end and antenna interface
• Key Spec 2: Cortex‑M0+ MCU (48 MHz) – 256 KB Flash, 32 KB SRAM, real‑time audio DSP support
• Key Spec 3: 3.5 mm audio input/output, 16‑bit audio codec, dual‑mode audio (analog & I²S)
• Common Use Case: Rapid prototyping of mobile voice assistants, GPS‑guided field service apps, and remote tele‑monitoring devices