There is already a large number of touchscreen solutions for the Raspberry Pi. I present yet another one. The special feature of this solution is that you just need a single HDMI cable to connect the touchscreen to the Raspberry Pi. There is no need for an additional USB cable or any proprietary solution for transmitting the touch information. Therefore, with a long HDMI cable it is easy to place the touchscreen and the Raspberry Pi at different places (e.g. at the wall and inside a cupboard).
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.