Instrument Cluster Clock Gets The Show On The Road

While driving around one day, [Esko] noticed that the numbers and dials on a speedometer would be a pretty great medium for a clock build. This was his first project using a microcontroller, and with no time to lose he got his hands on the instrument cluster from a Fiat and used it to make a very unique timepiece.

The instrument cluster he chose was from a diesel Fiat Stilo, which [Esko] chose because the tachometer on the diesel version suited his timekeeping needs almost exactly. The speedometer measures almost all the way to 240 kph which works well for a 24-hour clock too. With the major part sourced, he found an Arduino clone and hit the road (figuratively speaking). A major focus of this project was getting the CAN bus signals sorted out. It helped that the Arduino clone he found had this functionality built-in (and ended up being cheaper than a real Arduino and shield) but he still had quite a bit of difficulty figuring out all of the signals.

In the end he got everything working, using a built-in servo motor in the cluster to make a “ticking” sound for seconds, and using the fuel gauge to keep track of the minutes. [Esko] also donated it to a local car museum when he finished so that others can enjoy this unique timepiece. Be sure to check out the video below to see this clock in action, and if you’re looking for other uses for instrument clusters that you might have lying around, be sure to check out this cluster used for video games.

The mechanics in dashboards are awesome, and produced at scale. That’s why our own [Adam Fabio] is able to get a hold of that type of hardware for his Analog Gauge Stepper kit. He simply adds a 3D printed needle, and a PCB to make interfacing easy.

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A Real Dash For A Truck Simulator

[Leon] plays Euro Truck Simulator 2, and like any good simulator, there are people out there building consoles, cockpits, and dashboards. In [Leon]’s case, he wanted a dashboard for his virtual trucks and cobbled one together out of a dash taken from a VW Polo.

This project was inspired by [Silas Parker] and his Arduino-based dashboard made out of a cardboard box, some servos, and a few LEDs. It worked, but [Leon] realized just about every dashboard made in the last decade or so has a CAN bus. You can just buy a CAN bus shield for an Arduino, and a dashboard can be easily found at any junkyard.

Right now, [Leon] is in the process of finding the CAN bus addresses of the relavent dials and LEDs on the dashboard. He found the tachometer at 0x280, and a bunch of indicator lights can be found at 0x470. Combined with a standard computer steering wheel and the telemetry SDK for Euro Truck Simulator 2, [Leon] has the beginnings of a virtual big rig on his desk.

Speaking CAN With Open Source Hardware

You can buy a dongle with a weird industrial connector that fits under the dash of any car on the road for $15. This is just a simple ODB-II transceiver meant for reading error codes and turning a Crown Vic into a police interceptor. There’s a lot more to the CAN Bus than OBD-II; robots and industrial control units, for instance, and Hackaday alum [Eric] has developed an open source tool for all things CAN.

[Eric] built this tool because of a lac of open-source tools that can talk CAN. There are plenty of boards floating around that can reset codes in a car using OBD-II, but an open hardware CAN device doesn’t really exist.

The CANtact is a small board outfitted with a USB port on one end, a DE-9 port on the other, and enough electronics to talk to any CAN device. The hardware on the CANtact is an STM32F0 – an ARM Cortex M0 that comes with USB and CAN interfaces. This chip connects to a Microchip CAN transceiver, and that’s pretty much all you need to talk to cars and industrial automation equipment. If doing something legal, moral, or safe with the CAN bus in your car isn’t your thing, Wired reports you can digitally cut someone’s brake lines.

On the software side of things, the CANtact can interface with Wireshark and the CANard Python library. All the files, from hardware to software, are available on the Github. Oh, CANtact was at Black Hat Asia, which means [Eric] was at Black Hat Asia. We should have sent stickers with him.

Ceci N’est Pas Une Clock

[Justin] tipped us about his slick custom OBD-II gauge that could easily pass for an OEM module. He was able to use the clock area of his Subaru BRZ to display a bunch of information including the oil and coolant temperatures and the battery voltage.

The forum post linked above has a good FAQ-based explanation of what he did, but so many people have told him to shut up and take their money that he created an Instructable for it. Basically, he’s got a Sparkfun OBD-II UART board communicating with a pro Trinket. The display is an Adafruit OLED, which he found to be an ideal choice for all the various and sundry light conditions inside the average car.

[Justin] was able to reuse the (H)our and (M)inute buttons and reassigned them to (H)igh to show the peak reading and (M)ode to, well, switch between modes. The (:00) now resets the peak readings. He offers suggestions for acquiring the specific CAN codes for your car to make the data more meaningful. [Justin]’s code is safe in the many tentacles of Octocat, and you can check out his demo video below.

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Hackaday Links: August 30, 2014

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Adafruit did another Circuit Playground, this time concerning frequency. If you’re reading this, no, it’s probably not for you, which is great because it’s not meant to be. If you have some kids, though, it’s great. Not-muppet robots and oscilloscopes. Just great.

The Hack42 space in Arnhem, Neterhlands recently got an offer: clean out a basement filled with old computer equipment, and it’s yours. Everything in the haul had to fit through an 80cm square door, and there are some very heavy, very rare pieces of equipment here. It’ll be a great (and massive) addition to their museum. There’s a few pics from the cleanout here and here.

[Mike] has been working on a project to convert gerber files into SVGs and it’s great.

[Carl] did a roundup of all the currently available software defined radios available. It’s more than just the RTL-SDR, HackRF, and BladeRF, and there’s also a list of modifications and ones targeted explicitly to the ham crowd.

This is a Facebook video, but it is pretty cool. It’s a DIY well pump made in Mexico. A few rubber disks made out of an old inner tube, a bit of PVC pipe, and a string is all you need to bring water to ground level.

What can you do with a cellphone equipped with a thermal imaging camera? Steal PIN codes, of course. Cue the rest of the blogosphere sensationalizing this to kingdom come. Oh, what’s that? Only Gizmodo took the bait?

About a year ago, we saw a pretty cool board made by [Derek] to listen in on the CAN bus in his Mazda 3. Now it’s a Kickstarter, and a pretty good one at that.

Your connectors will never be this cool. This is a teardown of a mind bogglingly expensive cable assembly, and this thing is amazing. Modular connectors, machined copper shields, machined plastic stress relief, and entire PCBs dedicated to two caps. Does anyone know what this mated to and what the list price was?

 

The Hacklet #2

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A new edition of The Hacklet is now available It covers some of our favorite stuff going on in the Hackaday Projects community.

In this edition, we round up a few hacks involving cars. There’s Bluetooth Low Energy connectivity, vehicle telematics, and tools to hack into your car’s CAN bus. If you’ve ever wanted to clear that pesky check engine light without paying the dealer, or unlock your car with a smart watch, these are worth a look.

Next up are a bunch of LED hacks. This starts with a DIY theater light, then looks at a portable DJ booth, finishing off with our Evil Overlords’ own LED visualization platform.

Finally, we check out a new 3D printer design. This one uses polar coordinates instead of the Cartesian coordinate system that most printers use. This gives it the unique ability to print with multiple extruders at the same time.

Once again, let us know what you think of this edition in the comments. Our goal is to keep you entertained with some of the coolest hacks on the site.

Fail of the Week: CAN-Bus Attached HUD for Ford Mustang

This edition of Fail of the Week is nothing short of remarkable, and your help could really get the failed project back on track. [Snipor Bob] wanted to replace all of the dashboard readouts on his Mustang and got the idea of making the hacked hardware into a Heads-Up Display. What you see above is simply the early hardware proof of concept for tapping into the vehicle’s data system. But there’s also an interesting test rig for getting the windshield glass working as a reflector for the readout.

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