So my project is going pretty well.
The intention of this is to use a MSP430 to send commands to a cheap ass hobbyking flight controller.
Got the height somewhat working, just need to build the multicopter and it should work after some code adjusting hopefully :)
[video=youtube;LCI7VLH4rfI]http://www.youtube.com/watch?v=LCI7VLH4rfI[/video]
[QUOTE=AGMadsAG;44788403]So my project is going pretty well.
The intention of this is to use a MSP430 to send commands to a cheap ass hobbyking flight controller.
Got the height somewhat working, just need to build the multicopter and it should work after some code adjusting hopefully :)
[video=youtube;LCI7VLH4rfI]http://www.youtube.com/watch?v=LCI7VLH4rfI[/video][/QUOTE]
Where is the best and cheapest place to get the motors, controllers and batterys? is there a good guide for them too? i've been meaning to get a few to have a play.
[QUOTE=Angus725;44755190]Never really understood the appeal of building a computer via breadboard. Wouldn't it require more time to wire the chips correctly than the working out the more intellectually challenging abstraction to a high level programming language?
Background: made a RISC CPU on FPGA, generally didn't like assembly (although HDL programming was interesting).[/QUOTE]
Partly because the actual wiring is quite therapeutic (and I only made one mistake, I think, which was quick to track down), and partly because I want to have something to show for it!
Yeah, I've made RISC CPUs etc in FPGAs before too, but I've never shown anyone, because I wasn't really that proud of them - even though they were much more sophisticated than this one. And when you're done with that CPU, you wipe it off of the FPGA's flash and after that point it may as well have never existed. Sure, you can load it up again, but it's not really a tangible thing.
Ten years down the line, I'd much rather dust off something I made than load up an HDL program in a simulator.
[QUOTE=r0b0tsquid;44790282]
Ten years down the line, I'd much rather dust off something I made than load up an HDL program in a simulator.[/QUOTE]
This is always fun.
I had a rummage through my old boxes of "junk" and found one of the first things I'd properly built. A PIC Programmer for the PIC16F. Must have made that like 6 or 7 years ago. Next to it was my first completed PIC project, a metronome with a tap tempo function. It still works though it is horribly put together.
[QUOTE=r0b0tsquid;44790282]wiring is quite therapeutic[/QUOTE]
This is so true for me, even though I've only just started doing it. It's just so relaxing to stick wires into a breadboard for hours and then see it all work.
[QUOTE=sambooo;44790864]This is so true for me, even though I've only just started doing it. It's just so relaxing to stick wires into a breadboard for hours and then see it all work.[/QUOTE]
Yes, assuming it all works of-course and it doesn't have one of those bugs that are so obvious it takes 5 hours to figure it out.
[QUOTE=nuttyboffin;44791156]Yes, assuming it all works of-course and it doesn't have one of those bugs that are so obvious it takes 5 hours to figure it out.[/QUOTE]
This is entirely true of software - especially of vhdl. 5 hours is a miracle bug, especially when it comes down to a subtle timing error.
I hate breadboards, because those unreliable connections always introduce more errors than anything else for me.
Veroboard is much more therapeutic!
[QUOTE=nuttyboffin;44790093]Where is the best and cheapest place to get the motors, controllers and batterys? is there a good guide for them too? i've been meaning to get a few to have a play.[/QUOTE]
Hobbyking.com - that's where pretty much everyone buys their RC stuff.
Remember to choose a warehouse where you don't have to pay for the import tax, if you've got that.
ESC's are fairly easy - you send a 1-2ms pulse (1 ms is 0%, 2ms is 100%) the whole width of the pwm is 22ms and duty cycle is 1-2 ms :) that's is what my spektrum ds6i receiver does - so i just made it the same. Servo's are close to the same, so you can just copy and adjust the code for those :-)
Remember that the batteries, motors and ESC's have to be compatible (cell count and amps)
You want an esc that can deliver more amps, than the motor can draw. And make sure that the battery can deliver the amps too. A 2 Ah (2000 mAh) battery with 10C discharge can handle 10*2Amps.
[QUOTE=AGMadsAG;44795803]Hobbyking.com - that's where pretty much everyone buys their RC stuff.
Remember to choose a warehouse where you don't have to pay for the import tax, if you've got that.
ESC's are fairly easy - you send a 1-2ms pulse (1 ms is 0%, 2ms is 100%) the whole width of the pwm is 22ms and duty cycle is 1-2 ms :) that's is what my spektrum ds6i receiver does - so i just made it the same. Servo's are close to the same, so you can just copy and adjust the code for those :-)
Remember that the batteries, motors and ESC's have to be compatible (cell count and amps)
You want an esc that can deliver more amps, than the motor can draw. And make sure that the battery can deliver the amps too. A 2 Ah (2000 mAh) battery with 10C discharge can handle 10*2Amps.[/QUOTE]
Neat, okey.
Currently trying to brouse around and find the most powerful complete set (battery, motor & driver) for under £30 i can get :p
Made a little breadboard power switch and indicator because unplugging my arduino or jumpers was annoying me
[t]https://dl.dropboxusercontent.com/u/30829668/Phone%20photos/IMG_20140513_152143.jpg[/t]
[QUOTE=sambooo;44797896]Made a little breadboard power switch and indicator because unplugging my arduino or jumpers was annoying me
[t]https://dl.dropboxusercontent.com/u/30829668/Phone%20photos/IMG_20140513_152143.jpg[/t][/QUOTE]
I SO have to do that.
[QUOTE=sambooo;44797896]Made a little breadboard power switch and indicator because unplugging my arduino or jumpers was annoying me
[t]https://dl.dropboxusercontent.com/u/30829668/Phone%20photos/IMG_20140513_152143.jpg[/t][/QUOTE]
Indeed, however, switch positive, not negative.
Moved the black jumper to the rail, yellow jumper to where that was and the black wire up a row on both connections, that was easy.
I made a booboo and tried to use commoned resistors with a 7-segment display, which isn't going to work. I'd need isolated resistors to make it work. At least I can use them for my rpm leds though, that saves me a fair bit of hassle.
[editline]13th May 2014[/editline]
When stripping wires, how do you stop the insulation from being pulled?
Yesssssssss
[video=youtube;LJnxg3MKDtU]http://www.youtube.com/watch?v=LJnxg3MKDtU[/video]
You guys know, Asseto Corsa gives Developers access to information via Shared Memory (e.g "Local\\acpmf_physics")
You can look it up [URL="http://www.assettocorsa.net/forum/index.php?threads/shared-memory-reference.3352/"]here[/URL]
I dunno how you want your lights set up but what I do is calibrate them so that when you shift up from the redline, the corresponding rpm is just enough to keep the first led lit. In my opinion that's better than just a straight mapping because otherwise the first half or more of the leds will be constantly lit while racing.
Also, I made my indicator flashes when it's time to change gear instead of using a bright white led, what do you think? [url]https://dl.dropboxusercontent.com/u/30829668/Phone%20photos/VID_20140513_231646.mp4[/url]
[QUOTE=sambooo;44801696]I dunno how you want your lights set up but what I do is calibrate them so that when you shift up from the redline, the corresponding rpm is just enough to keep the first led lit. In my opinion that's better than just a straight mapping because otherwise the first half or more of the leds will be constantly lit while racing.
Also, I made my indicator flashes when it's time to change gear instead of using a bright white led, what do you think? [url]https://dl.dropboxusercontent.com/u/30829668/Phone%20photos/VID_20140513_231646.mp4[/url][/QUOTE]
You're right, it makes more sense, but if you want to rebuild the RPM LEDs built into the Steering wheel, a LED goes on if RPMs > x. (tho The important LEDs are the red ones)
Looks good, I would flash it as soon AS it reaches the second red led, since the last one is maximum RPM which is preety much.
I've got it calibrated so it's all lit up before max rpm and it flashes at the shift point. There's no need to know you've gone [i]past[/i] the optimum shift point really.
[img_thumb]http://i.imgur.com/cVZvz1i.jpg[/img_thumb]
Attempting to use my Arduino to program an ATTiny44A in system, so far got a light to turn on, can't figure out how to turn it off though...
Christ that's a tiny breadboard, isn't is annoying to work with?
[QUOTE=sambooo;44809473]Christ that's a tiny breadboard, isn't is annoying to work with?[/QUOTE]Yeah, luckily I haven't had to use it much, just for making connections. I'm going to have to buy a larger one soon when I get more into this kind of stuff.
I finally got it blinking, turns out my delay function was broken.
Which controller do you use for RGB-LED-Strips?
I got RGB + Power input on them and I want to control them via Rasperry PI/Arduino.
This joint....
[IMG]http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/IMG_6136.jpg[/IMG]
...is a massive pain in the ass. The leads are already really short and just inserting/removing the entire module has enough flex to make the solder joints break. I'm tacking the ribbon down with hot glue but is there anything better?
What about that translucent yellow tape that's used on flex boards? I believe its teflon tape?
[QUOTE=LoneWolf_Recon;44817135]What about that translucent yellow tape that's used on flex boards? I believe its teflon tape?[/QUOTE]
I think you mean kapton tape?
[editline]15th May 2014[/editline]
[url=http://i.imgur.com/RFtbw7B.jpg][img]http://i.imgur.com/RFtbw7Bl.jpg[/img][/url]
I hope my table doesn't collapse.
Now I don't even want to think about posting my work-space. Doing so very well might cause the skies to rain fire, and the seas to become as blood.
I'd post my workspace but it's currently buried under a dismantled betamax player and its millions of screws.
I'd paste my workspa... oh wait i don't have one because after over 9 months+ my dad still hasn't finished my room (still in guest bedroom)
Mine is such a mess, I have a bunch of things on the go at the moment.
[t]http://i.imgur.com/VEsw9r8.jpg[/t]
The color difference between your monitors hnnngh
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