[QUOTE=nuttyboffin;44686433]5v has nothing to do with it. you need the Rds(on) which is 0.077 Ohms.
I believe the 5v you are refurring to is the Vgs which is the voltage used to drive the gate.
the correct math would be:
0.077*6^2 = 2.772W
3W then abouts. You will be just fine. I would stick a heatsink on it however.[/QUOTE]
oh. duh. This is why I can't have nice things. Thanks for the help!
[QUOTE=HeatPipe;44685674]I click on page 70 and I land on page 69, why is that?[/QUOTE]
Automerge screws with thread page calculation and Garry doesn't fix anything about the forum even if people bring it up again and again from time to time.
[QUOTE=nuttyboffin;44686433]5v has nothing to do with it. you need the Rds(on) which is 0.077 Ohms.
I believe the 5v you are refurring to is the Vgs which is the voltage used to drive the gate.
the correct math would be:
0.077*6^2 = 2.772W
3W then abouts. You will be just fine. I would stick a heatsink on it however.[/QUOTE]
I actually got an IRL540N, which according to [URL="http://www.redrok.com/MOSFET_IRL540N_100V_36A_44mO_Vth2.0_TO-220.pdf"]this[/URL] datasheet has an Rds(on) of 0.053ohms, for a power dissipation of 1.91W
[QUOTE=scratch (nl);44685186]Oh great, since some retards keep blowing up stuff at our study, we'll not be allowed to use anything other than a benchtop power supply (as it has a limiter in it) to power a line-following robot :v:
I mean come on, the supply is like as big as the entire fucking robot will be! I'm not the one who blew up 4 motor shields (of which one was of the teacher) and an Arduino because they shorted it with an unlimited source of power. Hell, my entire project group managed to have no destructive short circuits at all during the entire project. Even[URL="http://i.imgur.com/NsN5DAP.jpg"] [I]this [/I] [/URL]didn't have any issues[/QUOTE]
School shop environments are just like that. I remember in metals class we were stuck doing bookwork for 3 weeks because some chucklefuck thought "hurp derp i put soder bah-tol in forje furnise lololol" (he stuck a plastic soda bottle in the forge furnace) and wasn't man enough to confess that he did it.
[QUOTE=Tamschi;44688736]Automerge screws with thread page calculation and Garry doesn't fix anything about the forum even if people bring it up again and again from time to time.[/QUOTE]
When I am sleepy as fuck, sometimes I read same page three times without realizing... damn
[QUOTE=Zero-Point;44692132]School shop environments are just like that. I remember in metals class we were stuck doing bookwork for 3 weeks because some chucklefuck thought "hurp derp i put soder bah-tol in forje furnise lololol" (he stuck a plastic soda bottle in the forge furnace) and wasn't man enough to confess that he did it.[/QUOTE]
Man, you school sucks. We've done some bad shit, hit each other with 1000 V DC from a testing tool, hooked up power supplies in series, and used it to spark and run motors with (god damn, those motors sparked when we put the wires straight to the rotor), as well as shooting wire clamps (feel free to correct this, it's the little things you squeeze on the end of wires, with or without plastic running of the back of them) with pressurized air (limited by the shoddy connection on the compressor to ~4 bar)
All without any repercussions.
[QUOTE=Gulen;44695464]Man, you school sucks. We've done some bad shit, hit each other with 1000 V DC from a testing tool, hooked up power supplies in series, and used it to spark and run motors with (god damn, those motors sparked when we put the wires straight to the rotor), as well as shooting wire clamps (feel free to correct this, it's the little things you squeeze on the end of wires, with or without plastic running of the back of them) with pressurized air (limited by the shoddy connection on the compressor to ~4 bar)
All without any repercussions.[/QUOTE]
Crimps
Cypress is selling a 48MHz PSoC running an ARM Cortex-M0 CPU for 1 bux each (for a limited time) in QFN, SSOP and QFP packages, there is also a 25 bux dev kit available, it also includes a 12bit 1MSPS ADC, 2 analog comparators and four PLDs with 32kB of flash and 4kB of SRAM.
[url]http://www.cypress.com/psoc4/[/url]
Dunno what the shipping is like, if anyone in the US wants to buy a bunch you are more than welcome to.
[QUOTE=Chryseus;44697665]Cypress is selling a 48MHz PSoC running an ARM Cortex-M0 CPU for 1 bux each (for a limited time) in QFN, SSOP and QFP packages, there is also a 25 bux dev kit available, it also includes a 12bit 1MSPS ADC, 2 analog comparators and four PLDs with 32kB of flash and 4kB of SRAM.
[url]http://www.cypress.com/psoc4/[/url]
Dunno what the shipping is like, if anyone in the US wants to buy a bunch you are more than welcome to.[/QUOTE]
Eh, the shipping is free and all that, so i grabbed 20 pcs for future use :P
[QUOTE=Chryseus;44697665]Cypress is selling a 48MHz PSoC running an ARM Cortex-M0 CPU for 1 bux each (for a limited time) in QFN, SSOP and QFP packages, there is also a 25 bux dev kit available, it also includes a 12bit 1MSPS ADC, 2 analog comparators and four PLDs with 32kB of flash and 4kB of SRAM.
[URL]http://www.cypress.com/psoc4/[/URL]
Dunno what the shipping is like, if anyone in the US wants to buy a bunch you are more than welcome to.[/QUOTE]
Actually, I can confirm they are worth the money for the Dev Kit (And the PSoCs themselves). I was able to go to one of Cypress's presentations during this year's IEEE Uni Robotics Competition, got a dev kit for free. Their software is somewhat of a clusterfuck, and updating is sort of a pain.
However, the flexibility of the PSoC itself is pretty stagering and the processing power is definitely there (With quite a few built in mixed signal processing modules). Plus the dev kit has a capacitive touch slider as an input on the board (Which was fun to mess with for a PWM dimmer).
ALSO, they graciously div'd up the datasheets for the individual modules on board as well as one large datasheet.
Did I mention the really nice RGB Blue Led :dance:
[img_thumb]http://i61.tinypic.com/fo3mlx.jpg[/img_thumb]
I'm hoping to use the PLDs for low level algorithms like line following and the arm core for image processing? or something..
[QUOTE=Chryseus;44697665]Cypress is selling a 48MHz PSoC running an ARM Cortex-M0 CPU for 1 bux each (for a limited time) in QFN, SSOP and QFP packages, there is also a 25 bux dev kit available, it also includes a 12bit 1MSPS ADC, 2 analog comparators and four PLDs with 32kB of flash and 4kB of SRAM.
[url]http://www.cypress.com/psoc4/[/url]
Dunno what the shipping is like, if anyone in the US wants to buy a bunch you are more than welcome to.[/QUOTE]
The only language supported is C or C++ isnt it?
They look kinda cool, maybe ordering one for controlling my Room-LED's from a website :v:
[QUOTE=LoneWolf_Recon;44697907]Actually, I can confirm they are worth the money for the Dev Kit (And the PSoCs themselves). I was able to go to one of Cypress's presentations during this year's IEEE Uni Robotics Competition, got a dev kit for free. Their software is somewhat of a clusterfuck, and updating is sort of a pain.
However, the flexibility of the PSoC itself is pretty stagering and the processing power is definitely there (With quite a few built in mixed signal processing modules). Plus the dev kit has a capacitive touch slider as an input on the board (Which was fun to mess with for a PWM dimmer).
ALSO, they graciously div'd up the datasheets for the individual modules on board as well as one large datasheet.
Did I mention the really nice RGB Blue Led :dance:
[img_thumb]http://i61.tinypic.com/fo3mlx.jpg[/img_thumb]
I'm hoping to use the PLDs for low level algorithms like line following and the arm core for image processing? or something..[/QUOTE]
The IDE that you're forced to use really puts me off of the PSoC, which is a real shame.
Got 3 Arduino Mini clones in. So far no complaints other than they weren't in static bags and the packager couldn't count so one of the rows of break-out pins had an extra pin in it.
Also the rest of my shit came in, so this weekend, Project: Reflow has the green-light.
Is there any other way to program arduinos other than the stupid java ide? I find it slow and unresponsive sometimes (on linux)
Any linux or windows alternatives would be cool
[QUOTE=RoflKawpter;44704271]Is there any other way to program arduinos other than the stupid java ide? I find it slow and unresponsive sometimes (on linux)
Any linux or windows alternatives would be cool[/QUOTE]
Depends, are you looking to keep the Arduino framework? You can use plain C and throw it over via Avrdude, which works really well in Linux.
[QUOTE=RoflKawpter;44704271]Is there any other way to program arduinos other than the stupid java ide? I find it slow and unresponsive sometimes (on linux)
Any linux or windows alternatives would be cool[/QUOTE]
You can use any editor then import for compilation. I used CodeLite for a project I had to do for class. Just set it to ignore all of the Arduino stuff it did not understand.
[editline]2nd May 2014[/editline]
Actually, found some really cool ways to work with Arduino in other Ide's.
Visual Micro is a plugin for VS and Atmel Studio.
Eclipse has an Arduino plugin available.
Stino allows you to use Sublime Text 2.
The one mentioned above all have compilation and upload available in editor for ease of use. You can also just edit the files externally with an alternate IDE then when you tell the Aruduino Ide to compile I believe it will grab the newest saved version. I know what I am doing today after the gym now.
You can download the Arduino libraries and code in plain C++ with any IDE you want, then push it over with avrdude, which should also be able to talk the arduino protocol.
[url]http://hackaday.com/2014/05/02/reading-paper-tapes-from-scratch/[/url]
[img]http://hackadaycom.files.wordpress.com/2014/05/cgs_0671.jpg?w=580&h=386[/img]
Someone seems to be on hackaday...
John Carmack just retweeted it too
Hey MIPS/Pentium/NeXT, you're famous!
I saw your tape reader on hackaday and came here to mention it but was beaten to the punch :v:
Well done mate, it's awesome!
Must.....not.....ego trip......
Hey guys, I fancy a go at playing with some electronic doohickies but I don't own anything to play with nor do I want to invest in expensive equipment. I'm looking at getting an Arduino Uno, a breadboard, a bunch of wires and a cheap bunch of LEDs and resistors.
Is that a good starting point?
[QUOTE=sambooo;44711431]Hey guys, I fancy a go at playing with some electronic doohickies but I don't own anything to play with nor do I want to invest in expensive equipment. I'm looking at getting an Arduino Uno, a breadboard, a bunch of wires and a cheap bunch of LEDs and resistors.
Is that a good starting point?[/QUOTE]
Depends what you want to get into really. I myself would get a load of logic chips, resistors, capacitors and such.
Check out Rapid Online and Farnell for these things.
I wouldn't want to become dependent on Arduino for everything, there are so many things that you can do with other stuff, rather then spending £12 on every project you want to make use and keep.
Well Arduino just comes across as an easy way to start. For a first project I'd quite like to make an rpm gauge for one of the racing sims I play. Something like this: [url]https://www.youtube.com/watch?v=23puYS0XDs8[/url]
What would I need to make that if I didn't go the Arduino route? Soldering is completely out of the question because I'm in student accommodation, by the way.
[QUOTE=nuttyboffin;44711865]
I wouldn't want to become dependent on Arduino for everything, there are so many things that you can do with other stuff, rather then spending £12 on every project you want to make use and keep.[/QUOTE]
Thankfully the Arduino bootloader/framework aren't actually dependent on the 12 quid boards though, it works just as happily with £5's worth of parts on a bit of perfboard.
[QUOTE=sambooo;44711908]Well Arduino just comes across as an easy way to start. For a first project I'd quite like to make an rpm gauge for one of the racing sims I play. Something like this: [url]https://www.youtube.com/watch?v=23puYS0XDs8[/url]
What would I need to make that if I didn't go the Arduino route? Soldering is completely out of the question because I'm in student accommodation, by the way.[/QUOTE]
For this, Arduino or Teensy are a perfect fit, grab what you were going to and play around. Good luck!
I'm not sure whose advice to take here because this field is alien to me. The last electronics work I did was 16 unless you count taking A level Physics.
Arduino is fine for general digital work.
I would suggest getting a basic selection of components such as resistors, capacitors, diodes, LEDs, 555 timers and a couple of op-amps.
Also you should be able to solder, the fumes are not really toxic or smelly and it will not set off any fire alarms.
[url]http://www.bitsbox.co.uk/[/url] is a great place to get some components.
[QUOTE=Chryseus;44712431]Arduino is fine for general digital work.
I would suggest getting a basic selection of components such as resistors, capacitors, diodes, LEDs, 555 timers and a couple of op-amps.
Also you should be able to solder, the fumes are not really toxic or smelly and it will not set off any fire alarms.
[url]http://www.bitsbox.co.uk/[/url] is a great place to get some components.[/QUOTE]
While the fumes aren't directly toxic, it's still a good idea to not inhale them directly and to crack a window, since they cause asthma with prolonged exposure (aka if that stuff is all you breathe for several weeks).
Here's what I've got so far
[t]https://dl.dropboxusercontent.com/u/30829668/Screenshots/Screenshot%202014-05-03%2016.34.42.png[/t]
Completely lost when it comes to choosing capacitors though, there are so many types
Sorry, you need to Log In to post a reply to this thread.
