Supports Wi-Fi and Bluetooth 5 (LE) Flash: 8MB Supported development platforms: Arduino, ESP-IDF, VS Code Adapts to RS232 DB9 female interface, DC input 7V24V Onboard functions: WS2812, Reset button, Boot button, Button 102 Type: Bluetooth, Wi-Fi MCU: ESP32-S3 Full-duplex high-speed RS232 module Module Name: RSM232MT5V Isolation voltage: 3000V Port: TTL/RS232 Isolated output: 5V/50mA, 0.5W Communication rate: 1200256000 bps Product appearance and printed text may vary by batch; this does not affect functionality Color: As shown Material: PCB Package Contents: 1 x RS232 module Only the items listed above are included; other products are not included Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: 13 cm