ESP32-S3 SuperMini Wifi Bluetooth 5 (LE) Development Board

Description Description ESP32-S3 Super Mini development board is based on ESP32-S3 Wireless MCU and uses XTENSA architecture. This development board has a maximum CPU frequency of 240 MHz, 512KB SRAM and a flash size of 4MB. Unlke older ESP32 SOC, the ESP32-S3 SOC comes with Native USB (Yes, requires no USB-TTL converter chip for programming and debugging!). For seamless wireless connectivity, it supports WiFi 802.11b/g/n and Bluetooth 5 (LE), making it ideal for IoT applications. Just like the ESP32-C3 SuperMini, this board includes a built-in PCB antenna, ensuring reliable signal strength without requiring an external antenna. ESP32 vs ESP32-S3 Feature ESP32 ESP32-S3 Processor Dual-core Xtensa LX6 Dual-core Xtensa LX7. Clock Speed Up to 240 MHz Up to 240 MHz Wi-Fi 802.11 b/g/n (2.4 GHz) 802.11 b/g/n (2.4 GHz), HT20/40 and up to 150 Mbps. Bluetooth Bluetooth 4.2 (Classic & BLE) Bluetooth 5 (LE) USB Typically requires external USB-to-serial converter Native USB OTG Memory (SRAM) 520 KB 512 KB GPIOs Varies, up to 34 Varies, often more than older ESP32 variations, with more configurable options. AI Acceleration No hardware acceleration Includes vector instructions for AI acceleration. Makes S3 LX7 more suitable for Machine Learning Applications Security Features Basic security features More advanced security features (e.g., secure boot, flash encryption). Supports digital signature, AES-XTS-based flash encryption, HMAC, and RSA-based secure boot. Applications General purpose IoT, versatile connectivity More oriented for IOT applications that utilize AI, and require improved connectivity, and USB capabilities. Features Ultra-small size: 22.52 x 18 mm Ultra-low power consumption: deep sleep power consumption of about 43μA Onboard WS2812 RGB LED for programmable multi-color status indication Dual-core Xtensa LX7 CPU running at up to 240 MHz 512 KB SRAM, 384 KB ROM built-in, with 4 MB Flash Secure encryption features: AES-128/256, RSA, HMAC, digital signatures, and secure startup 11 digital IO pins 22 external interrupt pins 6 analog input pins 11 PWM pins Interfaces The ESP32-S3 series supports the following interfaces: 6x ADCs: GPIO (0-5) 6x PWM channels: Configurable on any GPIO pins. 3x UART: Configurable on any GPIO pins. 1x USB OTG: Native USB OTG Interface available on dedicated GPIO pins 2x I²C: Configurable on any GPIO pins. 1x I²S: Configurable on any GPIO pins. 3x SPI: SPI0 and SPI1 are reserved, SPI2 configurable on any GPIO pins. Wireless: 2.4GHz Wi-Fi subsystem Bluetooth 5.0/ Bluetooth mesh 1xTWAI: Compatible with ISO 11898-1 (CAN Specification 2.0) Technical Specifications SOC: ESP32-S3 On Chip Memory: 4MB / 512KB SRAM Operating Temperature: -40C to 85C (For ESP32-C3 SOC) Dimensions: 22.5 mm x 18 mm x 4.32 mm (without headers) Weight: 1.95g (excluding headers), ~3.2g (including headers) Operating Voltage: VIN: 5V USB: 4.5V ~ 5.5V Power Circuit operating voltage: 3.3V@200mA Input voltage (VIN): 5V Deep Sleep Power Consumption Deep Sleep Model: >44 μA Wi-Fi Enabled Power Consumption Active Mode: <75 mA Modem-sleep Mode: <25 mA Light-sleep Mode: <4 mA BLE Enabled Power Consumption Modem-sleep Mode: <27 mA Light-sleep Mode: <10 mA Pin Pitch: 0.1″ (2.54mm) Pin Spacing (between Rows): 0.575″ (14.6mm) USB Connector: USB Type-C Receptacle [!] Notes: If ESP32-S3 is unable to program, try putting the ESP32 in forced boot mode by pressing and holding BOOT button while momentarily pushing EN button. Release BOOT button and ESP32-S3 will enter boot mode. Now program the ESP32-S3 with your tool If above method does not work, then If try putting the ESP32 in forced boot mode by pressing and holding BOOT button before you plugin the USB cable. Release BOOT button and ESP32-S3 will enter boot mode. Now program the ESP32-S3 with your tool If ESP32-S3 is unable to RESET after programming, press EN button momentarily to reset the CPU These Supermini boards run very hot. Since there is no metal shield on these Supermini development boards, therefore they cant seem to dissipate heat effectively. Please install a heatsink on the ESP32-S3 chip. Also another possibility is to make use of lower speed cpu clock, and sleep modes to reduce continuous current consumption. ESP32-S3 does not has USB Serial Converter so it must use Native USB for programming and Serial Messages. Please use following statement in your C code to redirect Serial messages to Native USB interface of the ESP32-S3:  #define Serial USBSerial // Use native USB serial dfrobot_firebeetle2_esp32s3 definition for arduino IDE is found to be working well with this supermini board. In Platformio use following definition: [env:esp32-s3-supermini] platform = espressif32 board = dfrobot_firebeetle2_esp32s3 framework = arduino monitor_speed = 115200 board_build.flash_size = 4MB Documents and Downloads ESP32-S3 SOC Datasheet ESP32-S3 Super Mini Datasheet ESP32-S3 Super Mini Board information page ESP32-33 Super Mini Schematic ESP32-S3 Super Mini – Tutorial ESP32-S3 AT Firmware ESP WEBTOOL for Programming ESP32 through web-browsers Package Includes 1x ESP32-S3 Super Mini Wifi Bluetooth Development Board (Tested / QC-OK by AOC) 2x 9 Pin Male-Male Header