Pico HAT Hacker gives you full access to all 40 pins on your Pi, broken out at the top. It’s a super-skinny 0.8mm PCB, so you can solder it right onto the pins on your Pi and still have enough height on a standard header to fit a HAT or pHAT on top.
There are handy labels for all of the pins, with BCM pin numbering on one side, and more descriptive labels on the other to show where the I2C, UART, SPI, PWM, and I2S pins are. You can solder the Pico HAT Hacker either way up, depending on which set of labels you find more useful.
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.