RasPad 3 can connect the 40 I/O pins of the Raspberry Pi to the breadboard, so you can use these pins to do some interesting projects.
Before you start to experience the following courses, you need to refer to GPIO Extension Board to extend the 40 pins of the Raspberry Pi in RasPad to the breadboard.
SunFounder has a very complete course system about Raspberry Pi GPIO learning kits, such as the following two learning kits.
A basic learning kit is suitable for Raspberry Pi and Arduino, in this kit you can learn basic circuit and programming knowledge.
This is an advanced Raspberry Pi learning kit that contains almost all types of components. You can learn the principles and perfect codes of all components.
Electronic Kit for Raspberry Pi and Arduino¶
Purchase Links Global: https://www.sunfounder.com/products/electronics-fun-kit
United States: https://www.amazon.com/dp/product/B07QT78FXF
Da Vinci Kit for Raspberry Pi¶
United States: https://www.amazon.com/dp/product/B07WV2HYC6