Electrical Engineering V2 - Developers

[IMG]http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CGS_0632.jpg[/IMG] Hurrah! [IMG]http://i11.photobucket.com/albums/a166/ballsandy/teyp.png[/IMG] "the quick brown fox jumped over the lazy dog" Wait.....shit. Edited: Oh. The current loop device I am suing receives 8-bit ASCII but can only transmit 7-bit ASCII. All good now. [IMG]http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CGS_0633.jpg[/IMG] [IMG]http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CGS_0634.jpg[/IMG]

Gentlemen I present to you: [b]Episode #57 "Cooking with Chryseus"[/b] [i]How to make amazingly cheap flux that works just like the expensive stuff.[/i] [b]Ingredients[/b] 30ml of 100% Isopropyl alcohol, aka IPA, Isopropanol, Propan-2-ol, Rubbing alcohol 20g of clear or yellow rosin Bottle or syringe to store your flux in [i]Optional:[/i] Pair of gloves (it's rather sticky) A small funnel or some paper Hammer (assuming your rosin comes in solid form) A plastic bag or two [b]Step 1[/b] Take your rosin out of its packaging and remove any paper that may have become attached with a sharp knife, if your rosin is already powdered go to step 3. [thumb]http://u.cubeupload.com/Chryseus/HhmcT7.jpg[/thumb] [thumb]http://u.cubeupload.com/Chryseus/wVuaJm.jpg[/thumb] [b]Step 2[/b] Place the rosin in a bag or two and hit gently with a hammer until the rosin is a powder, the finer you get it the quicker it will dissolve. [thumb]http://u.cubeupload.com/Chryseus/lGOrTm.jpg[/thumb] [thumb]http://u.cubeupload.com/Chryseus/gJebBY.jpg[/thumb] Avoid storing the powder near your cocaine. [b]Step 3[/b] Pour the powdered rosin into a bottle and add 30ml of IPA, place in a warm place (preferable) and leave for 24 hours. [thumb]http://u.cubeupload.com/Chryseus/9zOSnS.jpg[/thumb] [thumb]http://u.cubeupload.com/Chryseus/BtCq5B.jpg[/thumb] [b]Step 4[/b] Add more IPA as desired to get the right thickness, if you want a fairly thick flux for SMD work add a small quantity of glycerol. Once it's fully dissolved it's ready to use. 20g of rosin will provide enough for 30-60ml of flux and that should last you at least a year even with heavy soldering.

[QUOTE=Chryseus;43870411] Wow I thought this is every EE knows. [/QUOTE] Also to go even cheaper you can use acetone instead of isopropyl. [sp] Dont use acetone. Don't do that. Acetone is bad for your brain. [/sp]

Acetone is also bad for your electronics. [editline]11th February 2014[/editline] Also Acetone is more expensive

[QUOTE=DrDevil;43871974]Acetone is also bad for your electronics. [editline]11th February 2014[/editline] Also Acetone is more expensive[/QUOTE] What? Here its $3 for a liter of acetone and $9 for a liter of isopropanol.

[QUOTE=alexaz;43872254]What? Here its $3 for a liter of acetone and $9 for a liter of isopropanol.[/QUOTE] Follow Estonia's tradition and substitute rubbing alcohol with vodka.

After a short scare with a short across the battery leads (To which my teammates were ambiguous about what exactly went up in smoke, turns out it was just a wire), unfortunately the IR pairs were shit and the color sensor wasn't up to part, thus we had to scrap my sensor board (Atleast the interface/multiplexer worked).

How bad of an idea would it be to jump into AVR programming in C with no experience in programming? I'm thinking this is a decent plan since I'm the kind of person that learns with physical experimentation, I'm terrible at theoretical stuff.

[QUOTE=Nightrazr;43897755]How bad of an idea would it be to jump into AVR programming in C with no experience in programming? I'm thinking this is a decent plan since I'm the kind of person that learns with physical experimentation, I'm terrible at theoretical stuff.[/QUOTE] Can be frustrating at first, but in the long run definitely more rewarding than arduino.

[QUOTE=Nightrazr;43897755]How bad of an idea would it be to jump into AVR programming in C with no experience in programming? I'm thinking this is a decent plan since I'm the kind of person that learns with physical experimentation, I'm terrible at theoretical stuff.[/QUOTE] C isn't a bad language to start with and I think it would be better for you in the sense that the arduino language is straightforward but at the same time a bit of a garbled mess...

Killer, I'll get to rounding up info on AVRs, peripherals, other electrical doodads n stuffs.

[QUOTE=metallics;43898072]C isn't a bad language to start with and I think it would be better for you in the sense that the [B]arduino language[/B] is straightforward but at the same time a bit of a garbled mess...[/QUOTE] Also known as C++

Real men start with assembly.

[QUOTE=Nightrazr;43898703]Killer, I'll get to rounding up info on AVRs, peripherals, other electrical doodads n stuffs.[/QUOTE] You pretty much only neew one source: The datasheet. The datasheet contains pretty much all the info you need to do anything with the device.

[QUOTE=DrDevil;43899605]Also known as C++[/QUOTE] There might be C++ under there somewhere, but the top level language is awful.

[QUOTE=metallics;43899982]There might be C++ under there somewhere, but the top level language is awful.[/QUOTE] It's C++ from start to end. Really.

[QUOTE=Chryseus;43899612]Real men start with assembly.[/QUOTE] No no no... thats for the whimpiest of whimps. REAL MEN start with semiconductor design! whimps use Binary!

Can't fix it? I wonder what happens if I do this? [media]http://www.youtube.com/watch?v=X3OmHLTAsqk[/media]

A lot less interesting than i would of thought, was expecting it to run fast or slow or something other than just a blue screen

[QUOTE=Subby;43905755]A lot less interesting than i would of thought, was expecting it to run fast or slow or something other than just a blue screen[/QUOTE] You expected something made by Microsoft to NOT blue-screen after a fault like that?

Does anyone have any idea what this is? I found it in my box of random shit. [t]http://f41.img-up.net/CAM000212a3e.jpg[/t] [t]http://p56.img-up.net/CAM000228f76.jpg[/t]

[QUOTE=nutcake;43908117]Does anyone have any idea what this is? I found it in my box of random shit. [t]http://f41.img-up.net/CAM000212a3e.jpg[/t] [t]http://p56.img-up.net/CAM000228f76.jpg[/t][/QUOTE] This is a photo interrupter.

I would have guessed as much, but didn't know the word, thanks. <3

Pretty nifty device, sadly it seems like you have one with common VCC so you can't use it as a dodgy as fuck opto isolator.

[QUOTE=DrDevil;43908698]Pretty nifty device, sadly it seems like you have one with common VCC so you can't use it as a dodgy as fuck opto isolator.[/QUOTE] Just remove the shitty ribbon cable.

I've made a little AM radio transmitter with a 555 timer on a breadboard and I feel like I need to sacrifice a lamb to the analog gods. At high frequencies there seems to be so much black magic involved with this circuit from ghost capacitance and inductance. I think it's time to solder it to a real circuit board.

I've just been looking at a plug, hopefully to use it as an input for my power supply. It says 30V on the sticker and outputs 40V without a load. Accidentally shorted the two wires together, loud pop, some sparks and it took a bit out of my clips. I think I need new pants :(

[QUOTE=Leestons;43925697]I've just been looking at a plug, hopefully to use it as an input for my power supply. It says 30V on the sticker and outputs 40V without a load. Accidentally shorted the two wires together, loud pop, some sparks and it took a bit out of my clips. I think I need new pants :([/QUOTE] Hello poor regulation.

So I saw a commercial on the TV for these things called "Flavorvapes" They're disposable e-cigarettes with the main focus being the flavor (who'd have guessed) I checked the website out and somewhere on the page it told me that they couldn't be disassembled by users. Which ticked me off, so I went and bought one. I have to say I'm a little underwhelmed with their design. [thumb]http://i.imgur.com/OFGnPzH.jpg[/thumb] I'm not too sure how I could get a read on the amperage when in use, I'm still completely wet behind the ears when it's about EE. Good news is, it still works after disassembly. Anyone think I could screw around with this hooked to an Arduino UNO? EDIT: Oop, found the specs of the battery. Model PL08570 Voltage: 3.7 Typical capacity: 290mAh Minimum capacity: 280mAh

[QUOTE=Chryseus;43926019]Hello poor regulation.[/QUOTE] Yeah I won't be using it. I just saw it laying in a drawer full of stuff so I thought I'd take a look at it.