Waveshare ESP32-S3-Zero-N8R8 Mini Development Board, ESP32-S3 Dual-Core, 8MB Flash/PSRAM

You can program it using the Espressif IoT Development Framework (ESP-IDF), Arduino IDE with the ESP32 board package, or MicroPython. Connect the board via its onboard USB-C port to your computer. The board should enumerate as a serial COM port. In your chosen development environment, select the correct COM port and the 'ESP32-S3' board target before compiling and uploading your firmware.

The 8MB PSRAM (Pseudo Static RAM) provides a large, fast external memory pool for data-intensive operations. This is essential for applications like buffering audio streams for voice processing, storing image frames from a camera for computer vision tasks, managing complex graphical buffers for displays, or handling large data sets in edge machine learning models, which would exceed the chip's internal SRAM.

Yes, the board features a castellated (half-hole) module design specifically for surface-mount device (SMD) integration. You can place it on your custom carrier PCB's footprint and reflow solder it using standard SMD assembly processes. This design provides all GPIOs and power pins on the edges, allowing for a compact and professional final product without requiring a separate dev board.

The module is typically powered via the onboard USB-C connector at 5V. When integrated into a custom design, you can supply power through the VCC pin. The ESP32-S3's operating voltage range is 3.0V to 3.6V, so an onboard 3.3V regulator is required if your supply is not already at that voltage. Consult the official Waveshare schematic for detailed power pin connections and decoupling capacitor requirements.