> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # 1 Wire Pi Plus **Type:** Product page · **SKU:** CE07448 · **Brand:** [AB Electronics](https://core-electronics.com.au/brands/ab-electronics-australia) · **GTIN:** 7426787870040 **Page:** https://core-electronics.com.au/1-wire-pi-plus.html ([markdown](https://core-electronics.com.au/1-wire-pi-plus.html.md)) The 1 Wire Pi Plus is a communication board supporting the 1-Wire® protocol designed for use on the Raspberry Pi . A 5V buffered I2C port is also provided on the board. ## Pricing - **Price:** $28.60 (inc GST) — $26.00 AUD, exc GST - **Quantity discounts:** 10+ $24.96 (exc GST) · 25+ $24.18 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 4 today; more stock is typically available with a 10–14 day lead time. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE07448:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE07448:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description The 1 Wire Pi Plus is a communication board supporting the 1-Wire® protocol designed for use on the [Raspberry Pi](https://core-electronics.com.au/raspberry-pi-4-model-b-4gb.html). A 5V buffered I2C port is also provided on the board. The 1-Wire® port on the 1 Wire Pi Plus 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 Plus 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 Plus 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 Plus along with other expansion boards. Space is provided on the board for a 1-Wire® iButton device. iButtons are small metal packed modules that can be used for a wide range of functions from data loggers to temperature monitoring. More information about iButtons can be found on the Maxim Integrated website. To use an iButton on the 1 Wire Pi Plus you will need to solder a DS9094F PCB clip onto the board. Please note that the DS9094F should be positioned to match the orientation marked on the PCB and the + sign on the connector is actually linked to the ground side of the iButton devices. 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 jumper on the board to isolate the Raspberry Pi 5V bus. **Features** - 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. **Specifications** - 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 **Documents** - [1 Wire Pi Plus - 3D CAD File (STEP Format)](https://core-electronics.com.au/attachments/localcontent/1-wire-pi-plus-2_56737397ac0.zip) - [Schematic Drawings](https://core-electronics.com.au/attachments/localcontent/schematic-1-wire-pi-plus-v2_14407f99736.pdf) - [Code Libraries and Demos](https://www.abelectronics.co.uk/kb/article/3/owfs-with-i2c-support-on-raspberry-pi) - [Datasheets](https://core-electronics.com.au/attachments/localcontent/DS2482S_25444c22414.pdf) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/1/-/1-wire-pi-plus-1.jpg)