From the mail bag…

-1

From the mail bag…

I’d like to say that I’ve had a very positive experience with the RGB backlit LCD.

I have incorporated it into an Arduino-based dual-stage temperature controller that keeps a refrigerator at whatever temperature I set it with a front-panel switch (used for brewing beer).  When the temperature is within 1 degree of the setpoint, the display is green.  When it turns on the 110VAC to the cooling outlet (fridge power), it turns the display blue, and when it turns on the heating outlet (40W light bulb), it turns the display red.

It’s a great application for that display and has impressed a few people. I’d be willing to share some pictures if you’re interested. It uses three of your TMP36 sensors and an Uno.

p.s. It also incorporates an XBee so I can control the temperatures remotely (it’s in another building), but I can receive ambient air, ambient fridge air, and carboy temperatures for logging.  Remote control is handy because of the temperature fluctuations required for lagering that take place over the course of days.  Might as well automate that instead of walking out and manually changing the setpoints, right?  🙂

Mike

You can get the RGB LCD(s) here, here and here.


Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!

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

Join over 38,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/15/2024 Featuring Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board! (Video)

Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

Adafruit IoT Monthly — The 2024 Recap Issue!

Maker Business – Adafruit Daily — Apple to build another chip at TSMC Arizona

Electronics – Adafruit Daily — SMT Tip – Stop moving around!

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


9 Comments

  1. Mike,
    That’s a really great idea. Nice looking project. Thanks for the inspiration.
    (update with beer pictures when available?)

  2. Great project and I would love to build one also. I’m also a brewer. Will you share your design?

    Thanks,
    Paul
    pgrunwald AT comcast.net

  3. Great job, my friend! Can’t wait to taste the beer 🙂

  4. Ditto- nice project! By the way, would you mind sharing your source for the nice bezel you used for the LCD display?
    (Gee, I sure wish Adafruit Industries had those! hint..hint)

  5. Very nice – I have been looking for just this type project for a growth chamber I am building. As above will you share the design?

  6. I saw this and was highly impressed. Nice work.
    I am also a Homebrewer and was wondering if you would be willing to share the planes to it.

  7. very cool . . . could this also work for a humidor ? It would need 70f degrees and 70% relative humidity

  8. I just ordered a display and sensors from here. I already have a Duemilanove 328. I ordered this relay board http://www.ebay.com/itm/Wrobot-2-Channel-Relay-Shield-/270741882972?pt=LH_DefaultDomain_0&hash=item3f0979485c

    I don’t plan on doing wireless but I did get the high density display so I can graph.

    I will post more when I’m a little further along.

    P.

  9. p.s. Junction Box can be found at Lowes: http://www.lowes.com/pd_10029-223-E987NR_0__?productId=3256598

Sorry, the comment form is closed at this time.