The DS2413 1-Wire Two GPIO Controller Breakout is a compact breakout board featuring a 1-Wire controller with two open-drain GPIO lines (PIOA and PIOB) which can be used as inputs or outputs. Multiple DS2413 devices can share a single I/O pin as each is uniquely addressable. The GPIO lines are open-drain, requiring a remote power supply for powering devices like LEDs.This breakout is ideal for those who prefer 1-Wire communication over I2C or SPI and need additional GPIO expansion.Key Features: 1-Wire interface supports multiple devices on a single I/O line Two open-drain GPIO pins, configurable as input or output Compact dimensions: 15.78mm x 9.96mm x 2.94mm Updated PCB silkscreen with Adafruit Pinguin font as of January 2024 Arduino users can use the Adafruit_DS2413 library along with a 4.7K resistor from I/O to 3.3V-5V power supply on the Arduino side to interface easily with this breakout.