ESP32-S3 Microcontroller Module — WiFi & Bluetooth
ESP32-S3 — Dual-Core WiFi & Bluetooth 5 Microcontroller Module
The ESP32-S3 is Espressif's powerful next-generation microcontroller module featuring a dual-core Xtensa LX7 processor, built-in WiFi, Bluetooth 5, and AI acceleration capabilities. Ideal for IoT, machine learning edge applications, smart home devices, and wireless embedded systems projects in Pakistan.
Technical Specifications
| Parameter | Value |
|---|---|
| CPU | Dual-core Xtensa LX7, up to 240 MHz |
| SRAM | 512 KB |
| Flash | 8 MB (onboard) |
| PSRAM | 2 MB (onboard) |
| WiFi | 802.11 b/g/n (2.4 GHz) |
| Bluetooth | Bluetooth 5.0 LE |
| GPIO Pins | 45 |
| ADC | 12-bit, 20 channels |
| DAC | 2 channels |
| Communication | UART, SPI, I2C, I2S, CAN, USB OTG |
| USB | USB 2.0 OTG (Full Speed) |
| Operating Voltage | 3.0V – 3.6V |
| Operating Temperature | -40°C to +85°C |
| AI Acceleration | Vector instructions for neural network computing |
Key Features
- Dual-core 240 MHz Xtensa LX7 processor
- Built-in WiFi 802.11 b/g/n and Bluetooth 5.0 LE
- USB OTG support — no external USB chip needed
- AI/ML acceleration with vector instructions
- Rich peripheral set: UART, SPI, I2C, I2S, CAN
- Compatible with Arduino IDE and ESP-IDF
- Low power consumption with deep sleep modes
Pin Configuration
The ESP32-S3 module features 45 programmable GPIO pins. Key interfaces: GPIO0-GPIO21 for general I/O, GPIO35-GPIO45 for additional I/O, USB D+ (GPIO20), USB D- (GPIO19), UART0 TX (GPIO43), UART0 RX (GPIO44), SPI CLK (GPIO12), SPI MOSI (GPIO11), SPI MISO (GPIO13), I2C SDA (GPIO8), I2C SCL (GPIO9).
Applications
- IoT devices and smart home automation
- Edge AI and machine learning projects
- Wireless sensor networks
- USB HID devices (keyboard, mouse, gamepad)
- Audio processing with I2S
- Industrial wireless control systems
Datasheet & Resources
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