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ESP32-S3 N16R8 16MB Flash / 8MB PSRAM Development Board
Dual-core 240 MHz · 16 MB Flash · 8 MB PSRAM · Wi-Fi · Bluetooth 5 LE · USB-C
£7.29
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Dual-core Xtensa LX7CPU
Up to 240 MHzClock
16 MBFlash
8 MB OctalPSRAM
2.4 GHz Wi-FiWireless
Bluetooth 5 LEBluetooth
Product overview
The ESP32-S3 N16R8 is designed for projects that need considerably more memory than a standard ESP32. Its combination of 16 MB flash, 8 MB PSRAM, native USB capability and S3 vector instructions makes it well suited to displays, cameras, signal processing and edge-ML experimentation.
Ideal for
ESPHome & smart home
Displays & GUIs
Cameras & sensors
Edge ML & DSP
USB HID / devices
Robotics & advanced prototyping
Technical specifications
| Processor | ESP32-S3 / dual-core Xtensa LX7 |
|---|---|
| Processor speed | Up to 240 MHz |
| Flash memory | 16 MB Quad SPI flash |
| PSRAM | 8 MB Octal SPI PSRAM |
| Internal SRAM | 512 KB |
| Wi-Fi | 2.4 GHz IEEE 802.11 b/g/n |
| Bluetooth | Bluetooth 5 Low Energy |
| USB | USB 2.0 Full-Speed OTG + integrated USB Serial/JTAG |
| Logic level | 3.3 V |
| Interfaces | GPIO, ADC, touch, SPI, I²C, UART, I²S, PWM, RMT, TWAI/CAN-compatible, SD/MMC, LCD, camera |
| Frameworks | ESP-IDF, Arduino IDE, PlatformIO, MicroPython, ESPHome |
Good to know
- Bluetooth Classic is not supported; this board uses Bluetooth LE.
- Enable the 8 MB Octal/OPI PSRAM option in the selected board configuration.
- Use a data-capable USB-C cable for programming and USB data.
Compare ESP32 boards
| Board | CPU | Memory | Bluetooth | Best for |
|---|---|---|---|---|
| ESP32-C3 Super Mini | 160 MHz RISC-V | 4 MB Flash | BLE | Compact IoT / ESPHome |
| ESP32-WROOM-32 | Dual-core 240 MHz LX6 | 4 MB Flash | Classic + BLE | General purpose |
| ESP32-WROOM-32 OLED | Dual-core 240 MHz LX6 | 4 MB Flash + OLED | Classic + BLE | Projects needing a built-in status display |
| ESP32-S3 N16R8 | Dual-core 240 MHz LX7 | 16 MB Flash + 8 MB PSRAM | BLE | Displays, cameras, advanced applications |
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Available from Aetherwatt on eBay with free UK delivery.