by cupl

A tap-to-read NFC tag that logs temperature and humidity

View all updates Sep 21, 2021

Introducing a new feature

by Malcolm Mackay

New Feature

To show our appreciation for the support we’ve received so far, we’ve got a hot new feature for you.

The sample interval and type can now be altered without leaving the web application:

This employs WebNFC, a recent addition to Chrome on Android. Hopefully other browsers will follow. If you do not use Android or Chrome, the previous method (pasting the configuration string into a third-party tag writer app) will still work. You can also write configuration strings through a serial port - documentation for this will follow in a future update.

Manufacturing Status

Our Chinese CEM has received all components required to assemble 250 cuplTag PCBAs. Our shipment of reels from the UK was released from customs on Thursday last week. The first 10 boards will be assembled first. We are currently awaiting a date for these to be shipped to us. 250 white enclosures have arrived with us in the UK.

About the Author

Malcolm Mackay


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One cuplTag, factory configured to sample temperature and humidity at 10 minute intervals. Works with the cupldeploy platform. Requires a CR1220 battery (not included). Includes one 2x4-way 2.54 mm male header, one 1x2-way 2.54 mm male header, one 2-way 2.54 mm jumper, and printed instructions.


40 Jumper Wires - Female/Female

From the Crowd Supply Basics project.

A bundle of 40 multicolored, 7.8" (200 mm) long silicone-coated 24 AWG jumper wires with female terminations on each end. They are designed for use with standard pitch (.1", 2.54 mm) male headers.


TI MSP-EXP430FR2355 Dev Kit

From the Crowd Supply Basics project.

Includes the EZ-FET, a basic, low-cost MSP430 programming and debugging solution

An EVM for MSP430FRx FRAM development with onboard debug probe, Grove connector, and ambient light sensor.


MSP-FET Flash Emulation Tool

From the Crowd Supply Basics project.

A full-featured programmer, spy-bi-wire debugger, and usb-to-serial converter for the MSP430

Connects any MSP430 MCU to a computer via USB for real-time, in-system programming and debugging. Includes a 14-conductor cable for board communication and a USB cable. Manufactured by Texas Instruments.



cupl develops NFC environmental sensors.

Malcolm Mackay

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