0

Designing a simple and cheap temperature logger

Usbtemperaturelogger3Dview

Designing a simple and cheap temperature logger @ Pick and Place blog

Some time ago, I was looking for a temperature logger. After checking what was available on the market and the prices, I decided to make one myself.


Please vote for Limor Fried (Ladyada) for Red Hat’s Women in Open Source Award
Our Ladyada (Limor Fried) was nominated for Red Hat’s Women in Open Source Award! Please vote for her! Visit: https://www.redhat.com/en/about/women-in-open-source

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 10,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — The strange world of low-margin online returns

Wearables — Liquid magic

Electronics — Diamonds may be forever… but components? Not so much.

Biohacking — Raspberry Pi Health Dashboard

Python for Microcontrollers — Python on hardware, a portal to a world of fun! #Python #Adafruit #CircuitPython @circuitpython @micropython @ThePSF @Adafruit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



2 Comments

  1. I did a little temp logger thing like this some time ago. I wanted to toss a couple of these into my refrigerator’s freezer and fridge sections and see how they were doing over-time. The problem was condensation. I tried potting the little boards, that presented even more problems, especially because I could no longer replace the battery without breaking it open. I could have used a rechargeable battery and potted that, but my philosophy is to NEVER build or buy ANYTHING that doesn’t have an easily user-serviceable battery (hence I DO NOT own even one Apple iPhone, iPod, etc. product, and never will). Maybe today using a SuperCap would be a viable alternative(?)

  2. Yes, the potting thing can create more problems than solve. In a former life, I was working on pressure sensors that were in an extreme environment (temperature, vibrations, accelerations) and we were potting them. It was production-line grade, so we had a vacuum machine but still, we had a lot of trouble (especially for the UHF wireless transmitter and its impedance matched lines). And of course, the part becomes non serviceable.

    I planned to test my temperature logger in my fridge too, but didn’t think of condensation (well, I did, but didn’t think it would be so problematic). I’ll try this as soon as I have a working prototype.

Sorry, the comment form is closed at this time.