1. for Pico GPIO sensor expansion board is specially designed for Pico of Raspberry Pie. It adopts a direct plug-in design and leads out all pins of Pico development board. 2. The expansion board carries 3.3V and 5V power indicators, and provides reset . 3. The expansion board classifies Pico peripheral interfaces for Raspberry Pie, which are arranged as follows: IIC interface, serial interface, SPI interface, SWD interface; It also provides interfaces for common modules, such as OLED display interface, Bluetooth module interface and steering gear drive interface. 4. Plug and play, no separate power supply, suitable for in-depth learning and development of Pico for raspberry pie 5. Application leader: learn how to play with sensors, expand rapid prototyping , and develop intelligent robots Product name: pico sensor expansion board Material: PCB+metal Colour: Black Support motherboard: for raspberry pie Pico development board, direct plug connection Steering gear interface: 4-way 5V steering gear interface Expansion board interface: Pico pin interface, steering gear interface x 4, SPI interface, IIC row socket interface x 2, IIC row socket interface x 2, serial row socket interface x 2, serial row socket interface x 2, SWD debugging interface, 3.3V power supply interface, 5V power supply interface Power supply mode: PICO development board power supply interface: PICO development board interface On board indicator: power indicator, 3.3V indicator, 5V indicator Protection scheme: over-current protection, short-circuit protection Application fields: PICO sensor experiment, PICO external equipment expansion, PICO robot project Product size: 95 x 58mm Package Contents: 1 x pico sensor expansion board Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.