Based on RPi.GPIO, it writes instructions to a 16x2 LCD module through Raspberry Pi's GPIO pins directly. This is not for interfacing an I2C LCD. Since it's not for realtime applications, the clock ...

About This project implements a basic calculator using a Raspberry Pi Pico microcontroller, a 4x4 Keypad Module, and an I2C 16x2 LCD Display. The calculator allows users to perform addition, ...

While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.

[Tech2077] is one of the lucky ones who already got his hands on a Raspberry Pi. He’s been looking into different interface options with the GPIO header and just posted a guide to using an HD… ...