🧪 AtomS3R Ext: Compact Powerhouse for Prototyping The AtomS3R Ext is a prototype development expansion controller built around the ESP32-S3 main chip. Tailored for validation and expansion, it’s your go-to tool for embedded smart device prototyping. 🛠️ 🔧 Top Features at a Glance 🧱 Integrated Breadboard: Located on the top surface, perfect for connecting and debugging multiple I/O ports. 📡 WiFi-Enabled: Powered by the ESP32-S3-PICO-1-N8R8, with 8MB Flash + 8MB PSRAM for robust performance. 🔌 Flexible Power Circuit: Converts 5V to 3.3V / 2.8V / 1.2V, supporting diverse peripheral needs. 🧭 Sensor Suite: BMM150: 3-axis geomagnetic sensor BMI270: 6-axis motion sensor 🔋 Type-C Interface: For power and firmware downloads 🔗 Expansion Ready: Includes HY2.0-4P port, 6 GPIO, and power pins for easy module integration. 📶 Enhanced 3D Antenna: Delivers superior signal strength and stability compared to previous ATOM series models. 📏 Ultra-Compact Design With dimensions of just 24 × 24 × 12 mm, the AtomS3R Ext fits effortlessly into tight spaces, making it ideal for embedded system prototyping, smart device validation, and modular expansion. 🧩 Features Integrated ESP32-S3-PICO-1-N8R8 main controller Nine-axis sensor system (BMI270 six-axis + BMM150 three-axis geomagnetic sensor) 8MB Flash and 8MB PSRAM Supports infrared emission control Expandable pins and interfaces Breadboard Development platforms: Arduino, UIFlow, MicroPython Includes 1x AtomS3R Ext Applications Motion detection and directional awareness Wearable devices Smart device control IoT applications Specifications Specification Parameter SoC ESP32-S3-PICO-1-N8R8 @ Dual-core Xtensa LX7 processor, up to 240MHz @ USB-OTG PSRAM 8M PSRAM FLASH 8M FLASH Six-axis Motion Sensor (BMI270) Accuracy: 0.05% (acceleration), 0.05°/s (angular velocity)I2C address: 0x68 Three-axis Geomagnetic Sensor (BMM150) Accuracy: 0.3 μTMounted on BMI270, obtaining magnetometer data via BMI270 Infrared IR IR emission distance at ∠180°: 12.46mIR emission distance at ∠90°: 1.45mIR emission distance at ∠45°: 3.88m Sleep Current GPIO-5V power supply: [email protected] uAGrove-5V power supply: [email protected] uAUSB-5V power supply: [email protected] uA (including PD resistor loss) Universal Expansion Board Size 5*[email protected] Reserved GPIO G5/G6/G7/G8/G38/G39 Breadboard Reserved GPIO G3/G4/G9/G10/G11/G12/G13/G14/G17/G21/G40/G42/G46/G48 Operating Temperature 0°C ~ 40°C Product Dimensions 24*24*12.9mm Package Dimensions 85*65.5*13mm Product Weight 34.5g Package Weight 68.5g