The Sentry1 visual sensor adopts a dual core 240MHz-ESP32 processor, which can meet entry-level visual processing needs and is suitable for teaching young people and creating works. Application fields: intelligent robots, intelligent cars, maker works, STEAM education, intelligent toys LED light: Different colors of the light can reflect different recognition results, and can be used as a fill light when set to white light Camera: Real time collection of image data ESP32 processor: dual core 240MHz processor USB: On board USB-UART chip, which can directly communicate and control with the computer, and serves as a firmware update interface. (Note: USB power supply be output through the communication interface, and both cannot be powered at the same time) Mode button: Short to switch algorithm, long to switch communication mode Reset button: can achieve hardware reset, used in special circumstances Communication interface: The interface between image processing data and the main control, supporting UART and modes The Sentry1 visual sensor can be connected to the main controller through a communication interface or to a computer through USB. CAUTION:USB and Communication Port can NOT be powered at the same time !!! Color: As Shown Material: Plastic+Metal Package Contents: 1 x Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.