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arduino

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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mavroOBD PART 2 – Arduino 328P ODB CanBus Hacking

Automobiles, DIY, Electronics, Hacks & Mods
February 5, 2016 8 Comments

mavroOBD-rev3

… continued from part I.

It’s been a while since I last posted an update on the mavroOBD project.  After a few (3) board revisions, I’m happy to report that I’ve successfully miniaturized the Arduino UNO (ATMega328P based AVR) and SeeedStudio CANBus shield into a compact OBD module form factor.   Next, I will begin the coding portion and will post updates as that happens.  Feel free to post a comment if you are interested in helping out with this project.

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mavroOBD – My OpenSource project designed to “hack” your vehicle

Automobiles, DIY, Electronics, Hacks & Mods
December 24, 2015 11 Comments

IMG_2996

Today I’m announcing my next project, mavroOBD.  It’s an open source Arduino compatible OBD/Can-Bus module.  The goal behind this is to provide an easy way for people to interact with their vehicles.   Not sure where this will lead but I’ve been wanting to get into the “car hacking” space for a while.  I’ve already sourced an OBD port module and designed two boards (power and mainboard).    This is an open source project and is available here on Github.

The idea is to be able to enhance my vehicles capabilities — since they don’t provide us a way to do this via configuration screens in the vehicle — one thing that drives me crazy is in my vehicle, I have to press a button for my front parking sensors to be active (if I haven’t been in reverse first).  This is annoying when pulling into a space.   My first task will be to emulate the parking sensor button when traveling less than 10mph.

The first step is to sniff the OBD port Can-Bus traffic to see if I have access to the system via the OBD port.  Depending on the manufacture some of the “internal”, non-diagnostic features are on a low or medium speed Can-Bus.   I’m still learning so if anyone has more knowledge and wants to share, please post a comment or join my efforts.  More to come… components will be here soon and I will be posting again when I get the boards populated and I can access the high-speed can bus network of my vehicle.

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DIY: Building a Mini (220mm) Quadcopter Part 3 – Transmitter & FrSky D4R-II Receiver

DIY, Electronics, Fun & Games, Hacks & Mods, Kids, R/C Models
May 10, 2014 No Comments

(This is part of a multi-part series on building a FPV mini 220mm quadcopter)

These next parts aren't really that exciting but much needed for controlling the quadcopter.  I already have a Futaba 9C controller that features a neat little module system.    So I just needed to purchase a FrSky Transmitter Module that works with my Futaba controller -- the FrSky FF-1 2.4Ghz Combo Pack for Futaba w/ Module & RX), it's only $39 for the kit.

FrSky-FF-Futaba

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