An I2C display has been selected due to its ease of use, requiring only two wires for connection (SDA and SCL). This simplifies both the circuit design and the code implementation. The system consists ...

There’s also the ESP32-S3-Touch-LCD-1.85C-BOX with the same specifications, but an additional box with a speaker and a 3.7V battery. Both versions come with 16MB SPI flash, a microSD card slot, a ...

Arduino Library for the SparkFun Air ... out 0.1"-spaced pins for users who prefer a soldered connection or prototyping the pins on a breadboard. The breakout also includes four jumper selectable I2C ...

A2. PCF8575C 0x20 to 0x27 need pull up in input mode. See #36, to be verified. So you can connect up to 8 PCF8575 on one I2C bus, giving access to 8 x 16 = 128 IO lines. To maximize IO lines combine 8 ...