Supports Pico development board with inline connection Expansion board interface: PICO pin interface, 4 servo motor interfaces, SPI interface, I2C port 2 x I2C pin headers, 2 x serial pin headers, 2 x serial ports SWD debugging interface, 3.3V power supply interface, 5V power supply interface Power supply mode: Powered by PICO development board Protection features: Overcurrent protection and short circuit protection Applications: PICO sensor experiments, external device expansion, robotics projects Servo motor interface: 4-channel 5V interface Dedicated interface: Compatible with PICO development board Onboard indicators: Power indicator, 3.3V indicator, 5V indicator Dimensions: 95 x 58 mm Note: Product appearance, color, and labeling may vary between batches, but this does not affect functionality Material: PCB Color: Black Package contents: 1 x Expansion board Other items not included Note: Lighting and display differences may cause slight variations in color compared to the images. Measurement error allowance: +/- 1-3 cm