:::RHMT::: Real Home Made Turbo
General Category => General Discussion => Topic started by: BoostedSchemes on July 04, 2010, 03:58:10 PM
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http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2)?DCMP=launchpad&HQS=Other+OT+launchpadwiki (http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2)?DCMP=launchpad&HQS=Other+OT+launchpadwiki)
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99% of the site has no idea what that is.
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They are not alone :?:
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MSP430 LaunchPad (MSP-EXP430G2) unboxing (http://www.youtube.com/watch?v=RVHGjgkFPlU#normal)
I was watching the video when I noticed youtube put the worldcup music on every video ;) Click the soccer ball. Maybe old news so eat shit if it is.
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looks cool but i dont have any idea what i would use it for or how to use it?
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looks cool but i dont have any idea what i would use it for or how to use it?
+1
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I was expecting something involving hot pockets when I saw the thread title :P
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99% of the site has no idea what that is.
They are not alone :?:
looks cool but i dont have any idea what i would use it for or how to use it?
looks cool but i dont have any idea what i would use it for or how to use it?
+1
Really guys??? Everyone knows thats one of those computer thingies that you add other computer thingies on to so you can do things with it. fuckin idiots
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i'm thinking i could use it to monitor boost levels in my efi 4.0L jeep and adjust MAP sensor voltage accordingly to 'fix' a/r levels.
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(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fwww.ice.csic.es%2Ffiles%2Fupload_files%2FImage%2Fimg_metop_on_launchpad.jpg&hash=d1349bc6df8d9ffc2d15f5f81415ee478685c47a)
???
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Damn, how can they sell that for 4.30$ ?
The board itself worth more than that...
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Damn, how can they sell that for 4.30$ ?
The board itself worth more than that...
i think peripherals is the word i'm looking for
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seems pretty neat. I think they are on back order though.
It's a microcontroller development board. It can do about anything you can think of electronically. It takes inputs, whether it's a sensor, switch, analogue voltage, etc, and creates outputs. Those too can be many types of outputs, relays, led's, wireless modules, solenoids...anything with the right voltage and speed. The neat part is that you can write code to change its behavior very easily. This one is super cheap having a development board hooked to it. Usually a lower end chip costs this by itself.
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Damn, how can they sell that for 4.30$ ?
The board itself worth more than that...
+1
The processor is slightly limited by todays standards, but for a LOT of simple applications it's goddamn perfect.
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It's like the 08M PICAXE. It's so cheap and who gives a shit if it's slower than the newest uC. I don't always need speed or complexity for simpler logic circuits.
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could this be used to make a honda coil on plug get signal from ecu fire proper coil at the right time kinda thingy?
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While we're on the subject, what's a good resource/ebook on pics for noobs? There's a few things I'd like to do, and am not intimidated by the programming, but have no fucking clue on what pic I should use and how I use it :/
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could this be used to make a honda coil on plug get signal from ecu fire proper coil at the right time kinda thingy?
TEN INPUT/OUTPUT SIR. TEN.
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could this be used to make a honda coil on plug get signal from ecu fire proper coil at the right time kinda thingy?
TEN INPUT/OUTPUT SIR. TEN.
cool or I could just let a certain someone finish his and let me test them.
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Three inputs, two to four outputs, depending on individual or wasted spark architechture. As so:
Either combination of the following, used to determine engine position and therefore which cylinder/ignition output channel:
- IC10 pins 2 and 6 (CKP and CYP, best)
- IC10 pins 4 and 6 (TDC and CYP, probably just as good given the same premise as Blundell's FAR more complicated unit)
Take the IGO:
- Q38 pin 2
And MUX it out one of your 2-4 ignition channels. Remember to use an ignitor. And fuck your mother.
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i got one, along with a bunch of free sample cpu's from them... it went to my pa address so I will have to pick it up. um, yeah.
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Well, fuck your mother, too.
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While we're on the subject, what's a good resource/ebook on pics for noobs? There's a few things I'd like to do, and am not intimidated by the programming, but have no fucking clue on what pic I should use and how I use it :/
Arduino is good and so is picaxe for learning. Go to the picaxe website and you can download the editor and a three section manual that teaches you everything. It The third section is even a set of examples for each type of circuit you may want to build. It does run BASIC which turns most people's noses up at it, but for learning uC's I find it good because it lets you learn the electronics quicker. The smaller setups are ~$10 with the board. They even have a starter pack that comes with everything to get you started.
Official site: http://www.rev-ed.co.uk/picaxe/ (http://www.rev-ed.co.uk/picaxe/)
Starter pack @ Sparkfun: http://www.sparkfun.com/commerce/product_info.php?products_id=8323 (http://www.sparkfun.com/commerce/product_info.php?products_id=8323)
Once you learn the basics, changing platforms is a matter of learning the IDE and the uC's quirks. Once you get into you'll be surprised how easy most things are to build.
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Most of the lower end tools on the market are perfect for the lower end micros. I waster money buying a "newer" 20Mhz analog scope for $100 to the door, I've seen Hitachi V-212 like I trained on frist year of school go for $35 shipped on eBay and they have a better and easier to read graticule. Also, the entry level/USN logic analyzer market is currently off the fucking hook - for $100-250 you can get 8-16 channel up to 100Mhz badness with built in protocol analyzers (RS-232, RS-485, CAN, I2C, etc).
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While we're on the subject, what's a good resource/ebook on pics for noobs? There's a few things I'd like to do, and am not intimidated by the programming, but have no fucking clue on what pic I should use and how I use it :/
Arduino is good and so is picaxe for learning. Go to the picaxe website and you can download the editor and a three section manual that teaches you everything. It The third section is even a set of examples for each type of circuit you may want to build. It does run BASIC which turns most people's noses up at it, but for learning uC's I find it good because it lets you learn the electronics quicker. The smaller setups are ~$10 with the board. They even have a starter pack that comes with everything to get you started.
Official site: http://www.rev-ed.co.uk/picaxe/ (http://www.rev-ed.co.uk/picaxe/)
Starter pack @ Sparkfun: http://www.sparkfun.com/commerce/product_info.php?products_id=8323 (http://www.sparkfun.com/commerce/product_info.php?products_id=8323)
Once you learn the basics, changing platforms is a matter of learning the IDE and the uC's quirks. Once you get into you'll be surprised how easy most things are to build.
Cool thanks. Have seen arduino used for a ton of little projects. Haven't heard of picaxe but I'll look into that too.
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Bump
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anyone who doesnt toss in the cost of a big mac for the opportunity to enbiggen they noggin is a foo
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ordered
hopefully my ADD doesnt let this become a $4.50 paperweight
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If I knew how to build anything electronic and program it, I would order one. But as I am barely more than a redneck engine builder, I don't see how I could justify buying one.
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I got one on backorder... we'll see. I have some ideas for this kind of thing. I briefly fooled around with an FPGA with 30 or so in/outs and Java Optimized Processor. Definitely super powerful shit in the hands of someone possessing the proper knowledgabilities.
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RHMT... Fuck Yeah!
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If I knew how to build anything electronic and program it, I would order one. But as I am barely more than a redneck engine builder, I don't see how I could justify buying one.
I'm kind of the same way, but I really want to learn it. I figured even if I only played with it for 20min, I spent less than $5.
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I am ordering an Arduino tomorrow, after I decide which one to get ;D
Been reading the website, shit is pimp, and I already have a few projects I've been wanting to do for years but haven't known where to start...
Been seeing "Arduino" mentioned almost daily on the RSS feeds I watched, but never took a minute to see what the fuck they were. Thanks for the suggestion.
EDIT: Already have a question :D
The board outputs 5v and up to 40mA draw... I will be using it to control four 1w LEDs which has typical voltage of 3.6v and draw of 150mA. I'm assuming this is a case where I'd use a relay?
16mhz GO!
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Use a solid state relay - cheaper, faster, and they come in smaller IC format.
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Use a solid state relay - cheaper, faster, and they come in smaller IC format.
Thanks holmes. Timing is crucial so that sounds exactly like what I need O0
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Agreed, the precise flashing of LEDs is absolutely crucial.
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Agreed, the precise flashing of LEDs is absolutely crucial.
For this project, yes.
I posted a video of it years back.
Now, to find a way to produce consistent drops of fluid at a consistent rate...
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You want to wave shit around in the air and make words?
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Pardon my electronic noobness, but if my understanding is correct this thing could be used as a sequential shift light. Right?
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Nosir, I want to levitate or reverse the flow of water while controlling its speed as trip-entertainment, eventually maybe even "syncing" it with music.
A consistent rate and droplet would make the effect more believable.
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Pardon my electronic noobness, but if my understanding is correct this thing could be used as a sequential shift light. Right?
You can do whatever the fuck you want with it, basically.
You have inputs/outputs (both digital and analog)... You use the Arduino software to code it using a pretty damn simple programming language that looks like C++
Pardon my noobness for not knowing what a sequential shift light is, but I assume it lights differently according to the RPM. It would be as simple as using one of the pins as input, coding it to read that input, then light up whatever LEDs you want to light up using the outputs.
Fucking simple.
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That's what I figured. My electronic experience stops with ecu mods done with written instructions and tuning hondas. I'm parts changer for sure when to comes to electronics. My best troubleshooting consists of finding some swollen and leaking caps in my computer monitor. Fixed a $300 monitor for a few dollars. I am trying to read up on this stuff, but my serious ADD isn't helping.
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http://arduino.cc/en/Tutorial/HomePage (http://arduino.cc/en/Tutorial/HomePage)
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http://arduino.cc/en/Tutorial/HomePage (http://arduino.cc/en/Tutorial/HomePage)
Bookmarked to figure this shit out. ;D
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damn, after looking at that, i am really getting excited about this. it looks like the only limits are the amount of inputs and outputs
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damn, after looking at that, i am really getting excited about this. it looks like the only limits are the amount of inputs and outputs
The Arduino Mega has 54 inputs/outputs. Which seems like it'd be more than plenty for just about anything.
I'm excited too. Ordered one of the basic ones to play with for now.
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I'm no rocket surgeon so this is way over my head.
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I'm no rocket surgeon so this is way over my head.
I think this is more like brain science. :D
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I'd rather fumble with bench top gear than change oil for a living, even if the pay were the same. I suggest you guys step up - most of your are easily bright enough to learn this shit. Few of you will master any appreciable amount of analog, but as digital chips become more sophisticated and pick up that end of things for the end user that will become less and less important for the majority of hobbyists, and even professionals.
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http://www.nkcelectronics.com/seeeduino-mega-fully-assembled.html (http://www.nkcelectronics.com/seeeduino-mega-fully-assembled.html)
Just ordered that. Smaller knock-off Arduino (still quality) with 70 inputs/outputs.
Also grabbed 60 UV LEDs for only $9 shipped, 2-pin JST to barrel adapter, 6.5vdc 2A adapter, small water pump, drip irrigation emitters, couple big slabs of perfboard, etc
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That seems like a good price with all of the inputs/outputs but I am glad I only spent $4.5 on the off chance this makes no sense to me. After what I read last night though, I see no problems.
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How much different are those other boards?
I need the inputs so grabbed this.
DealExtreme is the best for LEDs. Looking at other places, the cheapest I could find them was $1.59 each. DE had 20 for like $2-3.
TaydaElectronics has good deals on the other components. Got 60 resistors for $0.01 each, and a ton of other buttons/switches/relays/etc for pennies...only because they had an order minimum of $5.
Perfboard I used JPMSupply. Big 10"x4" sheets with interconnected rows for about $3-4.
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bump
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bump
void fadeAll();
{
int maxDelay = 20; // Max delay in milliseconds.
int curDelay = 20; // Current delay.
int fadeRate = 10; // Delay between incrementing the fade.
int fadeCounter = 0; // Counter for the fade rate.
int fadeDir = 1; // Direction of fade.
for (i = 0, i < 24, i++) // Turn all LEDs off.
{
digitalWrite(i + 1, LOW)
}
delay(curDelay); // Delay before flashing LEDs.
if (curDelay == maxDelay || curDelay == 0) // If the delay is at its max or there is no delay, reverse the fade direction.
{
fadeDir *= -1;
curDelay += fadeDir;
}
if (fadeCounter == fadeRate)
{
curDelay += fadeDir;
fadeCounter = 0;
} else {
fadeCounter++;
}
for (i = 0; i < 24; i++) // Flash the LEDs.
{
digitalWrite(i + 1, HIGH)
}
}
Fading LEDs on a digital pin? IT SHOULD WORK.
+2 internets to anyone who can explain how this will "dim" an LED on a digital pin that only has an on or off state.
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Remember that you can buy mux/demux chips to expand your outputs and inputs for way less than a bigger board. I use shift registers to expand my outputs on slower projects. They cost about 25 cents each.
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bump
void fadeAll();
{
int maxDelay = 20; // Max delay in milliseconds.
int curDelay = 20; // Current delay.
int fadeRate = 10; // Delay between incrementing the fade.
int fadeCounter = 0; // Counter for the fade rate.
int fadeDir = 1; // Direction of fade.
for (i = 0, i < 24, i++) // Turn all LEDs off.
{
digitalWrite(i + 1, LOW)
}
delay(curDelay); // Delay before flashing LEDs.
if (curDelay == maxDelay || curDelay == 0) // If the delay is at its max or there is no delay, reverse the fade direction.
{
fadeDir *= -1;
curDelay += fadeDir;
}
if (fadeCounter == fadeRate)
{
curDelay += fadeDir;
fadeCounter = 0;
} else {
fadeCounter++;
}
for (i = 0; i < 24; i++) // Flash the LEDs.
{
digitalWrite(i + 1, HIGH)
}
}
Fading LEDs on a digital pin? IT SHOULD WORK.
+2 internets to anyone who can explain how this will "dim" an LED on a digital pin that only has an on or off state.
PWM?
and no i didn't even look at the code
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Nah they only give the option of HIGH and LOW (on/off, 0/1) on those ports. There's some PWM pins and some analog ones but not enough, this will work by flashing the LEDs to make them appear dimmer without your eye actually being able to tell it's flashing.
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That's bit banged PWM. It's not as clean, but it works for LEDs.
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this will work by flashing the LEDs to make them appear dimmer without your eye actually being able to tell it's flashing.
so it's PWM
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could this gismo work to control some valves opening and closing at 1ms or less?
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could this gismo work to control some valves opening and closing at 1ms or less?
http://arduino.cc/en/Reference/DelayMicroseconds (http://arduino.cc/en/Reference/DelayMicroseconds)
this will work by flashing the LEDs to make them appear dimmer without your eye actually being able to tell it's flashing.
so it's PWM
I suppose, I'm a hardware n00b.
It has 70 digital input/output pins (of which 14 can be used as PWM outputs)
Says only 14 are official PWM outputs but I don't see why the code wouldn't work on any of the digital ports so I guess it's more of a hacky-PWM. Right now the code only delays between flashing the LED on, and could probably get better results from delaying how long it's ON as well as how long it's OFF...but I don't actually need that for anything so moved on.
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MSP-EXP430G2 MSP-EXP430G2 LaunchPad 14-/20-Pin Socket Target Board and Emulator 3 $4.30 $12.90
Coupon - HALFMSPTOOL: ($6.45)
Shipping: FedEx Free Shipping: $0.00
Sales Tax: $0.00
Total: $6.45
That's right, 3 of them for $6.45 shipped.
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PWM would probably refer to much higher frequency. All you need is >100Hz to fool the human eye. Even 30Hz can be enough, and that's ~16ms per on or off period, assuming 50% duty cycle. FYI an LED on half the tiem isn't preceived at half brightness. I forgot which it's expotential or inversely so, but the human eye doesn't see light intensity linearly.
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Yep the max delay I have set is 30ms which should give roughly 33fps which I assume will be enough to not be detectable, but will see once I get the hardware.
Oh, coupon code for half off on the launchpads - HALFMSPTOOL
$2.15 shipped each, which is ridiculously cheap. Wouldn't let me order more than three.
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I hope pretending to be like JD doesnt't make my hair fall out.
I bought 3 just now,
Thanks for the coupon code Jorsher.
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I hope pretending to be like JD doesnt't make my hair fall out.
I bought 3 just now,
Thanks for the coupon code Jorsher.
Did it work for you? I used it this morning with success. Tried again tonight, even without logging in, and it said the coupon was expired.
Found the perfect component for detecting the drops. Found out about optical interrupters and bought a couple Sharp-manufactured ones with a 10mm gap (which should be more than plenty) and a 1-5 microsecond response rate.
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Did it work for you? I used it this morning with success. Tried again tonight, even without logging in, and it said the coupon was expired.
Found the perfect component for detecting the drops. Found out about optical interrupters and bought a couple Sharp-manufactured ones with a 10mm gap (which should be more than plenty) and a 1-5 microsecond response rate.
Worked for me, i bought them less than an hr ago
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Did it work for you? I used it this morning with success. Tried again tonight, even without logging in, and it said the coupon was expired.
Found the perfect component for detecting the drops. Found out about optical interrupters and bought a couple Sharp-manufactured ones with a 10mm gap (which should be more than plenty) and a 1-5 microsecond response rate.
Worked for me, i bought them less than an hr ago
Any specific plans with them?
I'm using the Seeeduino for one of these with some extra "features":
time fountain 2 (http://www.youtube.com/watch?v=gCXvaHkQZpk#normal)
Then wanna build one of these:
Spinning RGB LED Ball II (http://www.youtube.com/watch?v=sO2-tqoyGik#normal)
Both pointless, but good trip toys.
Will probably use one of the Launchpad boards to build something that'll occasionally ping an address through my router, and if it doesn't get a response (aka connection is fucked) it will power cycle the router and modem. I'm too cheap to buy another and figure it'd be good experience if anything...
The other boards, not so sure yet...
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I hope pretending to be like JD doesnt't make my hair fall out.
ZING!
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I am going to use 4 of them to run a honda motor.
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I am going to use 4 of them to run a honda motor.
uberdata to tune with too?
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On backorder :(
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On backorder :(
Of course :P
They actually said that on the page for the launchpad in red lettering. $2-4 for a programmable board with free shipping, it isn't surprising.
Should get my Seeeduino today ;D