DS2413 1-Wire Two GPIO Controller Breakout

Breakout for the DS2413 1-Wire GPIO expander; provides two open-drain I/O lines (PIOA, PIOB) addressable over a single wire. Multiple devices share one bus line. Requires a 4.7kΩ pull-up resistor on the 1-Wire line; external supply needed to drive output loads.

Logical pinout · physical placement not verified

GND
Ground connection for the DS2413 1-Wire GPIO breakout. Adafruit Learn wiring says GND connects to Arduino GND.
Type · Ground
IO
1-Wire bus signal. Adafruit Learn wiring says IO connects to an Arduino GPIO pin and uses a 4.7 kΩ pull-up resistor.
Type · SignalVoltage · Pull up IO to the controller supply, 3.3V to 5V per the Adafruit product page wiring note.
PIOA
One of the two DS2413 controllable I/O lines. Adafruit states PIOA and PIOB can be used as inputs or outputs and are open-drain.
Type · GPIOVoltage · Open-drain output, use a remote/pull-up supply appropriate for the controlled circuit.
PIOB
Second DS2413 controllable I/O line. Adafruit states PIOA and PIOB can be used as inputs or outputs and are open-drain.
Type · GPIOVoltage · Open-drain output, use a remote/pull-up supply appropriate for the controlled circuit.

Pin	Type	Function	Voltage
GND	Ground	Ground connection for the DS2413 1-Wire GPIO breakout. Adafruit Learn wiring says GND connects to Arduino GND.
IO	Signal	1-Wire bus signal. Adafruit Learn wiring says IO connects to an Arduino GPIO pin and uses a 4.7 kΩ pull-up resistor.	Pull up IO to the controller supply, 3.3V to 5V per the Adafruit product page wiring note.
PIOA	GPIO	One of the two DS2413 controllable I/O lines. Adafruit states PIOA and PIOB can be used as inputs or outputs and are open-drain.	Open-drain output, use a remote/pull-up supply appropriate for the controlled circuit.
PIOB	GPIO	Second DS2413 controllable I/O line. Adafruit states PIOA and PIOB can be used as inputs or outputs and are open-drain.	Open-drain output, use a remote/pull-up supply appropriate for the controlled circuit.

Logical pinout · physical placement not verified

Pin details

4 connections

GND
Ground connection for the DS2413 1-Wire GPIO breakout. Adafruit Learn wiring says GND connects to Arduino GND.
Ground
IO
1-Wire bus signal. Adafruit Learn wiring says IO connects to an Arduino GPIO pin and uses a 4.7 kΩ pull-up resistor.
SignalVoltage · Pull up IO to the controller supply, 3.3V to 5V per the Adafruit product page wiring note.
PIOA
One of the two DS2413 controllable I/O lines. Adafruit states PIOA and PIOB can be used as inputs or outputs and are open-drain.
GPIOVoltage · Open-drain output, use a remote/pull-up supply appropriate for the controlled circuit.
PIOB
Second DS2413 controllable I/O line. Adafruit states PIOA and PIOB can be used as inputs or outputs and are open-drain.
GPIOVoltage · Open-drain output, use a remote/pull-up supply appropriate for the controlled circuit.

Converters

113 other options

ADS1115/MCP3421 ADCs, MCP4725 and GP8413 DACs, CP2102 USB-UART boards, and I2C plumbing like the LTC4316 address shifter — matched to bus, resolution and signal range.

View all 113

Related groups

4 groups

LED pixels

WS2812/SK6812 NeoPixel strips, rings and Jewels, APA102 DotStar pixels, and plain analog RGB strips — each matched to its protocol and host, not just its connector.

Components · Addressable LEDs · 180 parts

Bare ICs

74HC logic gates, MCP3008/MCP23017 ADCs and expanders, 24LC256 EEPROM, 4N25-series optocouplers and ULN2803A drivers — bare DIP chips with no breakout-board conveniences like pull-ups or level shifting.

Components · Integrated circuits · 68 parts

Memory

24LC32/25LC256 EEPROM, I2C FRAM, 64Mbit PSRAM, and microSD breakouts up to 64GB — matched to write frequency and data volume, not just interface.

Components · Memory & storage · 39 parts

Passives

E12 resistor kits, ceramic and electrolytic capacitor sets, 1N4148/1N4007 diodes, TIP120 Darlingtons, IRLZ44N MOSFETs and 100F supercapacitors — bench stock in kit quantities.

Components · Passives · 58 parts