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Part III (2024 UPDATE): Custom NMEA 2000 2″ Round LCD Multifunction Display Gauge for Boat

DIY, Electronics, Hacks & Mods, Videos
May 4, 2024 No Comments

(This is a continuation of Part 1 and Part 2…)

Wow, it’s been over 7 years since I built my first NMEA2000 Boat Gauge and it’s been working flawlessly ever since.   I recently got into the ESP32 platform (I know very late to the game) and I was interested to see what types of advancements there have been in round LCD screens.  The biggest challenge I had with the 4d systems screen module was it’s not a perfect circle and thus it did not fit within the envelope of the 2″ gauge casing.   That caused all sorts of complications. This is where the 1.28″ screen by Waveshare comes in (available @Amazon).

The screen comes in both touch screen and non-touch screen versions. I have both working, but since my screen will be mounting inside a matching gauge with a lens over it. I will be installing the non-touch screen version and adding the capacitance touch to the metal bezel. That worked great in my current installed version.

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Part II: Custom NMEA 2000 2″ Round LCD Multifunction Display Gauge for Boat

DIY, Electronics, Hacks & Mods, Videos
February 17, 2018 No Comments

(This is a continuation of Part 1…)

The gauge has now been installed since late July 2017 and it’s functioning well.  I was concerned that the sun and heat (and the winter cold) would cause some issues but so far things are working great.   The installation of the display in the  gauge cluster was a bit rough due to the 4d systems screen module is none circular.  I had to design the casing in two parts screen/bezel and rear PCB housing.  Where the two meet up was a weak point and required a few tries.  I’m looking to possible using a new LCD module in my next version as 4d System is discontinuing the ULCD-220RD :).

Here’s a video of the gauge functioning in the boat:

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Part I: Custom NMEA 2000 2″ Round LCD Multifunction Display Gauge for Boat

DIY, Electronics, Hacks & Mods
July 15, 2017 No Comments

The Backstory

I recently purchased a 2013 model year boat and in style of Mavromatic, I wanted to “hack/mod” the onboard electronics ASAP.   The previous owner had installed a Lowrance HDS 7 Gen 3 GPS/Chartplotter and added a NMEA 2000 backbone to use a Lowrance EP-60R fuel flow sensor (that I later found was clogged, a simple back-flush blow of compressed air fixed it).

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Review: Outdoor Weatherproof SunbriteTV 46″ Signature Series TV

Electronics, Home Appliances, Home Theater, Videos
November 9, 2014 No Comments
I'm working on the new Holiday Gift Guides and had a 46" SunbriteTV LCD TV from their Signature Series line in for review. Thought I'd do a quick review for the readers of Mavromatic. It's a pretty neat TV especially that you can permanently keep it installed outdoors as it's completely weatherproof. Watch the video above and please subscribe to our youtube channel. Tags: , , , , , , ,
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JVC Xiview LT-42WX70 – 42″ Monitor Targets DSLR Users

Home Theater
May 26, 2009 No Comments

lt-42wx70_angle-wospeakers

This is an interesting play when it comes to LCD’s. What makes the new JVC Xiview LT-42WX70  42″ 120Hz 1080p LCD TV monitor different is that it targets digital imaging professionals that are using digital SLR cameras, “allowing them for the first time to see the subtle colors, details and textures of their images faithfully reproduced”. 

How it does this is by featuring expanded color space capacity encompassing 100 percent of HDTV broadcasting’s (sRGB.904) color space and a coverage rate of 96 percent for Adobe RGB — a color space for still photographs taken on high-definition digital SLR cameras.

The unit is pretty slim and lightweight at just 1-5/8 inches deep and features a stylish black leather-like texture on its slim bezel that also helps to reduce glare. The flat rear panel is completely finished in metallic silver without any visible assembly screws or vents.  The JVC LT-42WX70 is available now and is priced at $2,399.95.

JVC – LT-42WZ70

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Challenges Working With Embedded Devices

DIY, Home Automation
May 3, 2009 4 Comments

Working With Embedded PC's

I’ve been busy working with on the new version of Myro:Home which will run on the 8″  in-wall touchscreen panels.  My original plan was to have the same “downloadable” software being able to run on these types of panels, however,  the truth is that these panels need special care in order to bring the best performance and stability.   I’ve chosen Windows XP Embedded as the OS and can get everything running very quickly.  Now, I’m working on adding in specific hooks to the hardware to take advantage of controlling the “bare metal” like LCD and GPIO.     Since these devices are not full powered desktop PC’s where you can be a bit less strict using CPU cycles, you cannot afford running things that aren’t necessary.   Heat is the biggest problem and when you put panels in walls where ventilation is an issue, you need to use less powerful (less heat producing) architecture. 

In the end, I feel I will have a very powerful home control solution that is cost-effective and very competitive!

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