Extended version: ESP32 38-pin bottom board Key features - Interface: Type-C connector for power and data - Compatibility: Only compatible with WROOM-32D/32U, WROVER, and ESP32 38-pin Wide-version modules - Documentation note: The ESP32 38Pin Expansion Board is intended for specific Asin ESP32 development board modules - Special reminder: The ESP32 38Pin Expansion Board is only applicable to the following Asin ESP32 development board modules: Asin: B09LMBX8WH ; B09KRHNC6Z; B08HMJ1X6W; B088QVQCTL; B086YS4Z3F. Please identify the product before purchasing to avoid module mismatch - Development support: Lua programming supported for easy development, with LWIP protocol and FreeRTOS - Operation modes: Three modes available — AP, STA, and AP + STA Benefits and why you need it - Flexible expansion for ESP32 projects: Expands compatibility to include multiple ESP32 modules within a single bottom-board footprint - Simplified wiring and connectivity: Type-C interface provides a reliable, standard connection for power and data - Easy software development: Lua support enables rapid prototyping and iterative development with established networking stacks (LWIP) and real-time features (FreeRTOS) - Versatile networking options: AP, STA, and AP + STA modes enable a variety of networking topologies for sensors, gateways, and local control hubs Use scenarios - IoT sensor node with direct AP or client connectivity: Use AP mode to host a local access point or STA mode to connect to an existing network for data transmission - Local gateway or bridge: Configure AP + STA mode to bridge devices on a local network to the internet or to other networks - ESP32 module development and testing: Use this expansion board to quickly swap between WROOM-32D/32U, WROVER, or ESP32 38-pin wide-version modules for testing and prototyping without rewiring Compatibility and safety notes - This expansion board is designed for ESP32 development boards that match the listed Asin modules - Before purchasing, verify the module compatibility to avoid mismatches with your ESP32 module - For Lua-based projects, ensure your development workflow includes Lua scripting tools compatible with the board and the supported modules Specifications in context - Board type: ESP32 38-pin bottom board extension - Connector: Type-C interface - Module compatibility: WROOM-32D/32U, WROVER, ESP32 38-pin Wide-version - Supported software: Lua programming, LWIP protocol, FreeRTOS - Operating modes: AP, STA, AP + STA Notes - The description preserves the original product scope, including module-specific compatibility and supported development options - No additional modules or features are added beyond the listed specifications and usage guidance