The ESP32-S3R8V is a TxRx + MCU combo in the ESP32-S3 series, integrating a 2.4 GHz radio for 802.11b/g/n Wi-Fi and Bluetooth v5.0 with an 8 MB PSRAM footprint — enough to run a full TCP/IP stack and a local ML inference model without external memory. The 21 dBm transmit power and -98.4 dBm sensitivity give it a solid link budget for IoT gateways or smart-home hubs where the client device is at the edge of range.
Housed in a 56-VFQFN Exposed Pad (7x7 mm), the ESP32-S3R8V requires a thermal-land pattern on the PCB to pull heat from the radio PA — a standard 4-layer board with a ground-plane via array under the pad handles the dissipation.
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