Show Posts
Pages: [1]
1  International / Hardware / Re: Ayuda con componentes necesarios on: December 05, 2012, 02:29:35 pm
¡Muchas gracias por la ayuda! Voy a repasar mi lista y ya mismo hago el pedido

2  International / Hardware / Re: Ayuda con componentes necesarios on: November 30, 2012, 10:16:02 am
Hola Sergegsx

Si, tiene conocimientos de la universidad, no creo que se le hayan olvidado, espero.
En cuanto a lo que lo puede orientar es posible que sea algo relacionado con regado y control de las plantas, aunque me gustaria que ademas pudiera cacharrear con mas cosillas.
He visto hasta autenticos invernaderos, una pasada. No es el caso, seria algo mucho mas pequeño, unas cuantas plantas...
Las principales dudas tengo son en la primera lista, los logic ic (que en realidad no se ni lo que es, pero recomendaban tener uno de cada uno de esos tipos), transistores, reductores de voltaje, lo que haria falta para "expandir" la arduino uno en caso de que no tenga tanta capacidad para los sensores(creo que inclui algo para eso pero no estoy seguro)
Que conste que solo he puesto lista de lo que tengo dudas. Tengo un listado con todo lo demas (arduino uno r3, sensores, photocell, humedad, temp, broadboard, lcd, bomba, etc)

Si, tengo paypal en ebay. Tengo como sitios pensados algunas cosas en ebay, dx, tayda, futurlec y yourduino, que sale mas economico, pero aun asi me gustaria bajar un poco y evitar comprar dos veces la misma cosa...

¡Gracias por contestar!
3  Using Arduino / General Electronics / Re: Help needed with components on: November 29, 2012, 03:09:32 pm
Note, I'm not a big electronics whiz myself (programming yes, electronics I'm just a little bit more advanced than you are now), but it may be useful to step back, and think what kinds of things do you want to do?  You have a bunch of random parts, some you will no doubt use and some you might not use.  Of the parts you use, some of them you should be thinking about getting more than a couple of.

For instance, in terms of the resistors, you probably should think about getting more of the popular resistors, and not necessarily getting all of different values, unless you plan to build things like timer circuits (555 transistors) without using the Arduino where you need to dial into a specific resistance.  The ones I'm currently using (or see referenced) are the 10, 220, and 330 omh resistors.  Maybe other people can chime in what are the most popular resistors.  Get twenty or thirty of each of these.  Don't worry about all of the odd sizes, until you actually need them.

OK, I will grab some more of those!

In terms of wire, you asked what colors are most popular.  It is entirely up to you, as it doesn't matter to the circuit what color the insulation is.  As I use the breadboard, I like having a different colored wire for each connection, so that it is easier to trace the circuit.  Traditionally, red is used for power, and black is used for ground.  I find myself using more black than anything else.

That's what I thought. Noted.

For somethings, you will want wires with female ends, so it may make sense to order some female-female and female-male wires, along with the male-male.  Another way to do it would be to get just female-female, and add the header pins to make male ends.  I find having wire strippers that I got from a home improvement store to be very helpful in making custom wires that are exactly the right size.

In fact I have female-female wires in another list, but I didn't want to bore you with a longer list. In that final list I have all the things I don't have any doubts about (arduino uno R3, breadboard, power wall adapter, LCD display, some sensors...). I read about that trick too. Cool!

I don't know if you have the basics or not, but you did not list any breadboards/protoboards in your list.  I find at times, it is useful to have at least 2 or more breadboards.  After you build a circuit, you might want to experiment with some new feature.  If you have two breadboards, you can leave your completed circuit on one, and then build the second one.  If it works out, that is the new unit, otherwise you can go back to the working version.  I did this by getting two protoshields with small breadboards, and then I can leave all of the connections in place, and just switch shields.  I bought my protoshields from here:  However, if you are doing complex circuits, those protoshields are on the small side, and you would want a larger breadboard.

Yes, in my final list I have 1 breadboard (830) and a protoshield with a minibreadboard. Plus some PCB boards too: Double Side Prototype PCB Boards (5X7 4x6 3x7 2x8CM) and Small StripBoard 94x53mm.

Another thing that is missing from your list is a soldering iron, and all of the stuff that goes with it (solder, third hand clamps, solder wick, sponge).  Trust me, as you advance, you will need to solder (and unsolder).  For more permanent builds, you will want to move to soldering the chips to perfboards or similar techniques instead of using a breadboard, but the breadboard is useful for the initial stages.  I am just about to move to soldering components, because I find the wires keep coming out.

He has all the soldering stuff already. Thank God, because that's out of my budget. Right now I am in the 150$ mark, so I wanted to take some 'repeated' ic , transitors, things out of the first list.

For the dip socket adapter (which allow you to put chips into a soldered connection), you might want to consider whether you need them right now, and when you get into building custom boards, then order them.

One thing to think of when ordering lots of random parts is organizing them.  When I bought my Uno, I bought a kit from an internet vendor that just threw all of the bits in a single bag with no labeling.  I have never gone back to that vendor.  When I ordered some more components, I went to that other people had recommended.  What a difference, the parts are fairly cheap (assuming you order enough that shipping is not a major factor), they got here to Massachusetts in the USA in a few days, and most important, each of the separate parts were in plastic bags, and each bag had a sticker giving the name and the dipmicro order number on the bag, and I can use the bag to store the components.

If you don't have good storage bins, I suggest starting to think of ways to store all of these random bits.  I'm using the 30 drawer cabinet from JoAnn fabric.  At the moment, I have a few cabinets left, and I need to start thinking about ordering a second one.  You can get other storage units elsewhere, but the idea is to have places to store stuff other than just on top of your desk or in a giant box:  Having a label maker is also useful.

That drawer cabinet seems perfect. Since I am not in the USA, I can't get that, but I am looking for something like that.
All I see is small plastic boxes in DX, but I don't think are as useful as yours. Not convinced with them... Still looking

You didn't list any motoros or servos, so I assume you are not interested in stuff that moves.

I was thinking he would use this to make some kind of automated garden so I got a 2 channel relay board, water pump, photocell, temperature sensor...
but I wanted that he could play some more, so I ordered those other components I am not sure about.
But definitely not something like robots, motors...

Thanks for taking the time to write all these ideas!
4  Using Arduino / General Electronics / Re: Help needed with components on: November 29, 2012, 03:07:13 pm
Your list will be populated depending on what projects you want to build. Anybody can make suggestions but ultimately it depends on your interests. Which sections of the forum do you spend the most time in? The playground section has a lot of great exhibition projects to check out also.  There are starter kits on the internet that simplify this, but I would say you are off to a good start. I might suggest you check out some of the following- various LEDs ; LCD displays; crystals for standalone projects; shields for ethernet, SD card storage, motor control, wifi, audio, etc.

No, it's not for me. It is going to be a gift for someone. I am thinking of an automated garden, but some other projects too.

Again, depends on what you might want to use it for and whether you use Alkaline or rechargeable batteries.

Rechargeable batteries.
I am going to order a wall adapter too.

Thanks for the fast reply!
5  International / Hardware / Ayuda con componentes necesarios on: November 29, 2012, 01:05:50 pm
Hola a todos

Después de decidir que a lo mejor puedo hacer algún regalo de navidad de este tipo a alguien al que le gusta la electronica, me encuentro con bastantes problemas a la hora de elegir componentes que le vayan a ser útiles, principalmente porque no tengo conocimientos sobre electrónica. Sólo lo que he ido leyendo hasta ahora en foros y blogs donde muestran proyectos con Arduino UNO, todos muy interesantes.

Tengo hasta ahora dos listas, la primera es en la que he puesto los componentes que tengo más confusión, a ver si me podeis echar una mano con esta. Es seguro que estoy duplicando cosas, y me sobran. También si veis que es mejor un chip que otro, no se... O que a lo mejor vosotros añadiriais alguno

La segunda tengo menos dudas, si teneis tiempo la podeis mirar y me decis algo.

Muchas gracias.
6  Using Arduino / General Electronics / Help needed with components on: November 29, 2012, 12:50:54 pm
Hi all!

I have been reading a lot of blogs about projects with arduino, and thought it would make a good xmas present.
I have made a list of components to buy but I am certain that I am going to buy things that will be useless or that are duplicated (I mean, same function). I know nothing about electronics...
That's what I would like you to tell me: 'take that out from the list', or 'I would add this instead'...
First, the list that is really messed up. I need help here!

Second, some other things I have some doubts, but not so important if you don't have time to look at it.

Thank you in advance.
Pages: [1]