Vacus ESP32-DW3210-V2 UWB Long Range Evaluation Module

The module can be programmed using the Arduino IDE with the ESP32 board package or the official Espressif ESP-IDF framework. Connect the board via its onboard USB-CP2102 interface to your computer. Select the correct COM port and choose a Generic ESP32 board as the target. The core ESP32 chip handles the application logic, while the DW3210 is controlled via a dedicated SPI or UART interface using its provided driver library.

The RS232 interface, facilitated by a MAX3243CDBR transceiver, enables long-distance wired firmware updates and serial communication after deployment. This is crucial for anchors installed in high or remote locations where USB access is impractical. You can connect it to a remote host or gateway using a standard RS232 cable, allowing for configuration and updates over distances far greater than USB supports, ensuring maintainability in fixed installations.

The module accepts a wide input voltage range from 2.7V to 5.5V DC. A typical and convenient supply is +5V, which can be provided via the USB port or an external regulated power source connected to the appropriate pins. Ensure your power supply can deliver sufficient current for peak transmission events. The board includes necessary regulators to power the ESP32 and DW3210 ICs from this single input rail.

This specific evaluation module features an onboard PCB UWB antenna optimized for 6.5 GHz operation, which is soldered directly to the board. The design does not include an external antenna connector like IPEX or SMA. For development requiring a different antenna pattern or placement, you would need to modify the board or design a custom version based on the DW3210 reference design, considering the critical impedance matching required for UWB signals.