ESP32-S3-DevKitM-1

Overview

The ESP32-S3-DevKitM-1 is the DevKit variant using the more compact ESP32-S3-MINI-1 module, which features an embedded PCB antenna in a smaller package compared to the WROOM-1. The core silicon is identical: a dual-core 240 MHz Xtensa LX7 ESP32-S3 with WiFi and BLE 5, but without PSRAM in the N8 variant — making it the leanest configuration for cost-sensitive designs that don't need the extra RAM.

Like the DevKitC-1, the DevKitM-1 provides two USB ports — one UART/debug and one native USB OTG — so you can upload new firmware while keeping a serial connection open. Up to 45 GPIO pins are available, covering the same wide peripheral set: SPI, LCD, camera interface, I2C, I2S, UART, TWAI, ADC, touch sensor, and temperature sensor.

The MINI-1 module's smaller footprint makes the DevKitM-1 better suited for evaluating designs that will ultimately use the compact module in production, where board space is at a premium. An addressable RGB LED, reset button, and boot button are provided for development convenience.

ESP-IDF is the primary toolchain; Arduino support for the ESP32-S3 was still maturing at the time of this board's release, with full support arriving in later Arduino-ESP32 core releases.