Raspberry Pi Pico H – Microcontroller Development Board w/ Soldered GPIO Headers
All of the GPIO pins are 3.3V logic, and are not 5V-safe so stick to 3V. You get a total of25 GPIO pins,3 of those can be analog inputs (the chip has 4 ADC but one is not broken out). 30 GPIO pins, 4 of which can be used as analog inputs.