I have been looking into (drooling over) the HRC ECU, but not for the reasons most people around here probably do. I really want that serial port and telemetry! I can't justify ~$1,500 for my tinkering... I have experience working with different types of sensors and electronics in a hacker/hobbiest fashion and have even gone as far as trying to figure out how to do this without ECU telemetry. Hall sensors for RPMs, gyroscope, accelerometer, etc. Today I was looking at Power Commander's website and they have an LCD unit that outputs available telemetry via a connected USB...I have never looked into Power Commander because I didn't know their inline system was able to get data out of the ECU. Most hacker sites haven't even successfully flashed a Honda ECU without soldering connections onto the board. Does anyone with a Power Commander know if this is my cheapest/easiest route to getting the information I want?
Give this a look, its from XT and it has data channels. XT Racing also sells plug and play sensors for GPX Pro. I have seen people replace their dash with it. The second link is a XT dealer, who coincidently be running a special(lowest advertised price allowed by XT) on these in a few days, so give him a call if you decide to pull the trigger. http://www.google.com/url?sa=t&rct=...zt1h1D24VRVF3MtmA&sig2=VBcJCmK7WnakOQd9G50XSA http://www.google.com/url?sa=t&rct=...=eUUO2G3VrfmIIRp5rdmAiQ&bvm=bv.60983673,d.aWc
That thing looks amazing and it's priced really well for what it does. I also like that it's abilities can be extended with the sensor breakout bar. I would consider it for all its additional features (beyond raw telemetry data) if I can get a trailer squared away and have cash to put toward it. It's just more than I need going into my second season at the track...at this point it's more data nerd curiosity and a chance to build a visualization app & interface for video overlays. Quick glance around shows it selling for $659. It'd take a heck of a deal, but it's worth a phone call to see.
very cool. i've always drooled over data acquisition but couldn't afford it. under $700 shipped seems like a great deal for everything you could learn...
Im building a data logger from an arduino with a gps shield and an LCD display. Your ECU outputs dozens of signals that you can tap into, as well as retrofitting your own sensors. I basically poll each input for analog and discrete data, and then concatenate the results down into a ".csv" text file which can be opened in excel and nicely analyzed as independent graphs. If you're a hobbyist electronics tech, this is perfect for you. Someone from this forum pointed me to these guys, which provide me with every kind of connector I could need. http://www.corsa-technic.com/category.php?category_id=53 Below is a sample of some of the code I'm working on. Maybe this might be something you could look into. I'm having tons of fun doing this. I'll probably do a write up when I know the system is robust. RPM Example: GPS Example: If you go down this route, I'd love to help out in any way I can.
I remove the cap from my gas tank and rock the bike back and forth a little. I look inside and this gives me the data I need for setting up the bike for the next session. Oh, and I check tire pressure.
And add this code below.....It always helps add HP!!! ound: ////P*I*N/// I*T//T*O//W*I*N//I*T////////B*Y*O*T*C*H///////
Thats awesome! It's exactly what I had in mind when I started thinking about this last summer. Then as I started doing research...the Honda ECUs are locked the **** down. It uses all proprietary code and so far I have not found anyone who has successfully deciphered it. Apparently, Honda sends so much irrelevant data through with the real data that (as I saw written by people smarter than me) "it would take months and months just to figure out what was real vs fake". So, here I am looking for a piggy backed solution I suppose. For all I know though, the serial port on the Power Commander would most likely end up spitting out the same encrypted garbage... EDIT: Just found an $80 07/08 ECU on Ebay I think I'm going to grab. I'm lucky to be surround by some pretty brilliant software engineers and if I can get one of them infatuated with this "problem" I may just get my solution.
Awesome! I've considered the same thing but adding an accelerometer to do g-force, speed, lean angle calculations as well. What GPS hardware are you working with?
I see the value in rpm's, throttle position and suspension data (although suspension data takes a ton of experience to make use of) but of what value is an accelerometer, gyro or g-force data?
id like g force and lean angle, pretty much to geek out over. it'd also be cool know what was going on when i put in a personal best, or had a low side, or... i'm very interested in the arduino solution too, i already have some arduino stuff sitting around. i don't have much electronics experience, but i like to learn.
It's all possible, that's the beauty of it! This is the GPS hardware that I have: http://imall.iteadstudio.com/development-platform/arduino/shields/im120417017.html http://imall.iteadstudio.com/wireless/antenna/im120717003.html No complaints with it whatsoever. You do have to configure it through the "blox (GPS IC manufacturer)" serial communication tool to get 5Hz though. The default is 1Hz.
You'd be suprised! I found this gem sitting in my service manual (ZX6). It basically showed me which pins to grab for the RPM signal, and described how I should calibrate it in my code. I just do a pulse-width measurement and then arrive at my RPM.
You cats have WAY too much free time on your hands. I have a crudely calibrated wrist and a couple screws loose upstairs. That is about all the data acquisition I can handle.