Features: This Sensors Expansion Board Shield is compatibles both 3.3V and 5V systems, allowing easy connection to various sensors and actuators for enhanced functionality in electronics projects. Featuring multiple GPIO port, power management for 3.3V/5V switching, and I2C/SPI communication ports, it supports diverse sensors like temperature, humidity, light, and ultrasonic sensors with highly quality PCB for stability and clear labeling. Ideal for developers, beginners, educators, and enthusiasts, this expansion board simplifies learning and prototyping in electronics, making it accessible for all skill levels. Perfect for intelligent home systems, robotics, educational labs, and projects, it enables quick setup for environmental monitoring, automation, or robotic controls. This board ensures seamless integration into any development setup, enhancing flexibility for prototyping and innovation. Specifications: Type: Sensors expansion board Component: plastic Color: black Size: 65x56mm Two power input methods: Black head input DC7-9V USB port input DC5V Two voltages output option: V1 jumper cap connection to select voltages output 3.3V and 5V optional Power light: Yes Package Includes: 1PC Sensors expansion board note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.