A Feature-Packed ESP32-S3 - N4R2 Board for Your Next IoT or Embedded Project
The 7Semi ESP32-S3- N4R2 Dual USB Dev Board is a compact, breadboard-friendly development board built around the powerful ESP32-S3-WROOM module from Espressif. Designed for IoT, smart devices, and wireless applications, this board combines Wi-Fi, Bluetooth 5 LE, and an onboard RGB LED, all in one robust, easy-to-use package.
Perfect for makers, students, and professionals, the board requires no extra USB-to-serial converter, thanks to its built-in USB functionality. With support for Arduino IDE, ESP-IDF, and PlatformIO, getting started is a breeze.
Features
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Wi-Fi 802.11 b/g/n + Bluetooth 5 LE
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Onboard RGB LED for status indication or effects
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Dual USB-C Ports: USB OTG + Serial/JTAG – no external programmer needed
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GPIO Pins – Access ADC, PWM, UART, I2C, SPI, CAN (TWAI®), and more
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Dual-core 32-bit LX7 Processor @ up to 240 MHz
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Low Power Consumption – Deep Sleep Current ~7 µA
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Compatible with Arduino, ESP-IDF, PlatformIO
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Breadboard-friendly design with clearly labeled pins
Applications
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Smart Home Controllers
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BLE Beacons & Gateways
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IoT Sensor Nodes
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Data Logging
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Voice/UI Devices
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Low-power Automation Projects
Package Includes
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1 × 7Semi ESP32-S3 Dev Board
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Optional headers (unsoldered)
Resources
- SoC:
- ESP32-S3-WROOM-1 (Dual-core Xtensa® LX7)
- Wireless:
- Wi-Fi 2.4 GHz, Bluetooth 5 LE
- RAM / Flash:
- 2MB PSRAM, 4MB Flash
- USB Ports:
- 2 × USB-C (OTG + JTAG/Serial)
- Interfaces:
- I2C, SPI, UART, ADC, PWM, CAN (TWAI®), GPIO
- Operating Voltage:
- 3.3V logic (5V via USB input)
- RGB LED:
- SK6812
- Power Modes:
- Active, Modem-sleep, Light-sleep, Deep-sleep
- Sleep Current:
- ~7 µA (deep-sleep mode)
- Board Size:
- Approx. 71mm x 26mm
- Board Weight:
- 9 gm
- Dev Environment:
- Arduino, ESP-IDF, PlatformIO
