We like this approach because instead of doing some hard-core LCD work he’s using prototyping ... [Tech2077] grabbed an I2C port expander that uses just 2 of the RPi lines to address even ...

Don’t have a LCD to go with your mainboard ... you can absolutely connect a GPIO expander chip over I2C, like the PCF8574 or the MCP23017, and control whatever low-tech device you want.

The I 2 C-bus is fabulously popular and successful as a low-cost way to attach chips together in small embedded systems. In some systems, though, these chips need to be opto-isolated to avoid damage ...

The latest MCUs make it feasible to include programmable I 2 C slaves in low-cost systems. Most low-speed serial devices communicate with each other using the I 2 C bus. Although there's a wide ...

I2C is a two-wire, bidirectional bus protocol that enables effective communication between one master (or multiple masters) and one or more slave devices. It is a straightforward, half-Duplex, ...

LCD (Liquid Crystal Display) IPS-LCD (In-Plane Switching Liquid Crystal Display) OLED (Organic Light-Emitting Diode) AMOLED (Active-Matrix Organic Light-Emitting Diode) The screen, when combined ...