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N4XI X1W-1

Parts of this project are no longer available.

The 1-Wire™ sensor kit was designed to be used with the TAPR T-238+ APRS Weather Station or N4XI's Linux based WXN weather server over APRS. The humidity and barometric pressure sensors, as well as the rain gauge interface should work with any other 1-Wire™ based software as the design is based on the original Dallas Semiconductor 1-Wire™ Weather station.

The board features the following:

Barometric Pressure Sensor: Motorola MPX4115AP
Temperature Sensor: Dallas Semiconductor DS18S20
Rain Gauge Interface or radiation monitor input.
EMP (lightning detector) interface.
Aspirator control for X1W-2.
Rain Gauge Heater Control.
RS232 Interface
Pads for installation of optional 1-Wire iButton Clip.
1-Wire loop-through.

The X1W-1 kit does not come with an enclosure.

Bare PCB

Ordering Information

The price for the X1W-1 Bare PCB is:

  • $ 14 US for members of TAPR

  • $ 15 US for non-members

    + shipping/handling if applicable.
(Place Web Order)

A note regarding email addresses: When checking out please use an email address other than @earthlink.net, @hotmail.com, @live.com, @msn.com, @outlook.com. For some reason these domains reject email from tapr.org

Shipping and Handling

Shipping and Handling within the US will be by USPS Priority Mail.

International shipping costs are calculated as closely as possible. If the actual cost exceeds the estimate by more than $10.00, TAPR will contact you to get approval for the additional funds. TAPR uses insured Priority Mail International, unless the purchaser requires something else.

Complete Kit

Ordering Information

Sorry, N4XI - X1W-1 BP Sensor is no longer available

Assembly and Operations Manual

The assembly and operations manual can be found online at http://www.tapr.org/n4xi-tmp-html/x1w-1/


TAPR kits can be complex depending on the kitting experience of each builder. We don't think you will have trouble with the kit, but it does require some knowledge and experience to successfully go from a kit to a finished, usable unit, depending on the mode of operations.


View WXN: A Weather Server For Amateur Radio


The TAPR X1W-2 Kit was made possible by the efforts of:
John Bennett, N4XI - Conceptual and PCB Design
Steve Bible, N7HPR - Project Manager
John Koster, W9DDD - Assistant Project Manager
Joe Borovetz, WA5VMS - Parts Liaison
Dwight Hazen, WB9TLH - Beta Tester


1-Wire™ is a registered trademark of Dallas Semiconductor Corporation, a wholly owned subsidiary of Maxim Integrated Products

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