The PicoCalc is a new handheld with a retro design. At first glance it looks more like a graphing calculator than a modern ...

Later it calculates the Current count of people and makes those values get updated on Display. In order to make our Arduino UNO communicate with a 16x2 I2C LCD display properly, the above library is ...

The board includes a 3.2-inch 320 x 240 IPS TFT LCD connected via high-speed SPI and a 40-key mechanical keyboard scanned via an I2C GPIO expander. It also features an amplified 700mW speaker output ...

The Raspberry Pi Pico SDK 2.1.1 has just been released with official 200 MHz clock support for the Raspberry Pi RP2040 MCU, several new boards mostly from Waveshare, but also one from Sparkfun, as ...

If the card gets recognized, the Arduino sends a signal to the relay to unlock the solenoid door lock for 10 seconds, Later, it locks the door automatically. To make it more user-friendly, I decided ...

Arduino library for the I2C LCD display, typical 20x4 characters. The library is inspired by the excellent New-LiquidCrystal library by F. Malpartida. Therefore the interface is kept quite identical, ...

This chip uses I2C to communicate, 2 pins are required to interface Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing ...

Turing on the scope’s decoding function verified his hunch that it was using I2C, and gave him plenty of ... Our go-to is the LCD display and controller reference we covered here back in March.