This is the new raspberry pi pico released in 2021. this new raspberry pi is very cheap compared to another bord by a raspberry pi. It also has 30 GPIO pins and lots of interfacing options including 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels. Pi Pico is a microcontroller board based on an in-house custom-designed chip (RP2040) by Raspberry Pi in the UK. RP2040, the chip at the heart of Pico, is an ultra-powerful Dual Core ARM Cortex-M0+ clocked at 133MHz with 256KB RAM, 2MB of onboard QSPI Flash memory for code and data storage