You\’re too cool for I2C, and SPI has so many wires, 8-bit parallel… how can that be fashionable!? You are a 1-Wire kinda gal, and you want more 1-Wire breakouts in your life to complement all of your great engineering. Well rock on, because here you go, it\’s a 1-Wire controller with two open-drain GPIO. You can put as many of the DS2413s as you want on a single I/O line, each one is uniquely addressable and shares the single I/O pin happily. The two controllable I/O lines (PIOA and PIOB) can be used as inputs or outputs. They are open-drain, so if you want to power an LED or something, you\’ll need a remote power supply (see Maxim\’s product page for more details) We have a basic Arduino sketch that uses the OneWire library to communicate with this chip. Don\’t forget to add the 4.7 Kohm resistor from I/O to your 1-Wire controller power supply (3.3V – 5V) on the Arduino side of the wires. Revision History As of August 1st, 2024 We\’ve updated this PCB withAdafruit Pinguinto make a lovely and legible silkscreen – you may get the new PCB or the older version with vector fonts – both are identical other than the fancy silkscreen. Specifications Dimensions: 15.78mm x 9.96mm x 2.94mm Resources Tutorials and Downloads