[Tech2077] is one of the lucky ones who already got his hands on a Raspberry Pi ... least 7 pins to be converted in this case) or you can be a bit more clever. [Tech2077] grabbed an I2C port ...

The LCD display requires only two pins (I2C) on the Raspberry Pi GPIO to function, leaving the other pins available for your project. Features of the Pi display include : The LCD and Keypad Kit is ...

the Raspberry Pi 4 has six SPI controllers, six I2C controllers, and six UARTs – all on its 40-pin header. You can’t make use of all of these at once, but with up to four different connections ...

The ADC is connected to the Raspberry Pi I2C bus. This is a MCP3426 by Microchip. – LCD interface: The board includes a connector for attaching a 2,2” LCD with 320×240 pixel resolution.