1 Wire Pi Zero

Name: 1 Wire Pi Zero
Brand: AB Electronics UK
SKU: 1WirePiZero
Price: 10.4900 GDP
Availability: InStock
Rating: 5 (1 reviews)

1-Wire expansion board for the Raspberry Pi Zero

Installed on a Raspberry Pi Zero with optional mounting kits

Installed on a Raspberry Pi with optional mounting kits

£10.49 each (including VAT: £12.59)

Product Code:1WirePiZero

EAN:7426787870057

123 in stock to order today.

Add a Mounting Kit Four Pack
for only £3.49 each ^{ex vat}

Order Mounting kit to use on our Raspberry Pi + and 2 boards

1-Wire® to I2C host interface with ESD protection diode.
Stackable with other Raspberry Pi accessory boards.
Buffered 5V I2C port.
External 5V power input for 1-Wire® interface.
I2C address selection via solder jumpers.

The 1 Wire Pi Zero from AB Electronics UK is a communication board supporting the 1-Wire® protocol designed for use on the Raspberry Pi Zero. A 5V buffered I2C port is also provided on the board. The 1 Wire Pi Zero can be securely fitted to your Raspberry Pi using our mounting kit pack.

The 1-Wire® port on the 1 Wire Pi Zero is based around a DS2482-100 I2C to 1-Wire® bridge device. The DS2482-100 provides bi-directional protocol conversion between the I2C port on the Raspberry Pi and any attached 1-Wire® slave devices. An ESD Protection Diode is used to protect the 1 Wire Pi Zero and Raspberry Pi from electrostatic spikes on the 1-Wire® port. Connections to the 1-Wire® port can be made through the RJ-12 socket or the solder points on the PCB. We have a knowledge base article for configuring and using the 1-Wire® port on your Raspberry Pi.

The 1 Wire Pi Zero is powered through the host Raspberry Pi using the GPIO port and extended pins on the GPIO connector allow you to stack the 1 Wire Pi Zero along with other expansion boards.

A 5V input port is also provided allowing you to use an external power supply on the 1-Wire® interface, reducing the load on the Raspberry Pi. If you choose to use the external 5V input please remove the solder jumper on the board to isolate the Raspberry Pi 5V bus.

Code Libraries and Demos

Using the 1-Wire w1 Subsystem with the 1 Wire Pi

Configuring and using OWFS and the 1-Wire® port on your Raspberry Pi

Compatibility

We have tested the 1 Wire Pi Zero on the following platforms.

Model	Status
Raspberry Pi Model A / B
Raspberry Pi 1 Model A+ / B+
Raspberry Pi 2 Model B
Raspberry Pi 3 Model A+ / B / B+
Raspberry Pi 4 Model B
Raspberry Pi Zero
Raspberry Pi Zero W / Zero 2 W
Raspberry Pi Compute Module 4 IO Board
Orange Pi
Asus Tinker Board
Odroid

Datasheets

DS2482S (1-Wire Interface)

Knowledge Base Articles

Using the 1-Wire w1 Subsystem with the 1 Wire Pi

OWFS with I2C support on Raspberry Pi

1 Wire with DS18S20 digital thermometer

I2C Part 2 - Enabling I²C on the Raspberry Pi

OWFS with I2C support on Orange Pi

1 Wire Pi

1 Wire Pi Plus 1.0

Specifications

Input Ratings & Specifications

Spec: Ratings
Vdd (5V pin): 5.0V
Maximum current on 1-Wire pins: ±20 mA
I2C SDA/SCL voltage: 5.0 V
I2C port current: 100 mA

3D CAD Model

1 Wire Pi Zero - 3D CAD File (STEP Format)

Schematic

Click to download schematic PDF.

Mechanical Drawings

Click image to enlarge

1 Wire Pi Zero

£10.49 each (including VAT: £12.59)

Assembly

The 1 Wire Pi Zero is supplied with the 40 pin GPIO connector, RJ12 connector and 2 pin jumper unsoldered.

Before using the 1 Wire Pi Zero you will need to solder the two connectors onto the PCB. We suggest soldering the 40 pin GPIO connector first and then the RJ12 connector. The RJ12 connector is supplied clipped onto the PCB.

PCB Header Assembly Jig

Download and print our PCB Header Assembly Jig to hold your circuit board when soldering the header pins.

Connecting to the 1-Wire® Port

The 1-Wire® port on the 1-Wire Pi can be accessed through the female RJ12 socket or the solder points on the PCB. An ESD protection diode is fitted between the RJ12 port and the 1-Wire® interface IC.

The pinout connections for the RJ12 port are shown below:

Pin: Usage
1: 5V
2: Ground
3: OW (1-Wire® Data, ESD Protected)
4: RT (1-Wire® Return/Ground, ESD Protected)
5: NC
6: NC

I²C Address Selection

The 1 Wire Pi Zero includes two address selection solder jumpers which can be bridged with solder to give you up to 4 different I²C addresses.

Configuration 1:

Configuration 2:

Configuration 3:

Configuration 4:

This development board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by abelectronics.co.uk to be a finished end-product fit for general consumer use. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. Persons handling the product(s) must have electronics training and observe good engineering practice standards. This development board/kit does not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives. Note: documents in Portable Document Format (PDF) require Adobe Acrobat Reader 5.0 or higher to view, download Adobe Acrobat Reader or other PDF reading software for your computer or mobile device.

Features

Code Libraries and Demos

Compatibility

Datasheets

Knowledge Base Articles

Tags

1 Wire Pi Zero

Specifications

Input Ratings & Specifications

3D CAD Model

Schematic

Mechanical Drawings

1 Wire Pi Zero

Assembly

PCB Header Assembly Jig

Connecting to the 1-Wire® Port

I²C Address Selection

1 Wire Pi Zero

Features

Code Libraries and Demos

Compatibility

Datasheets

Knowledge Base Articles

Tags

1 Wire Pi Zero

Specifications

Input Ratings & Specifications

3D CAD Model

Schematic

Mechanical Drawings

1 Wire Pi Zero

Assembly

PCB Header Assembly Jig

Connecting to the 1-Wire® Port

I2C Address Selection

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Important Information

I²C Address Selection