WinPicProg Forums

rick hardy · Joined: 07 Jun 2006 Posts: 10

Hi Nigel,
Thanks for a great site !
I live in Portalnd, Oregon USA.
I ran across your site as I was surfin' the internet for PIC stuff
I'm somewhat of a newbie to the whole PIC programming world.
I'm a member of a local Robotics club here in Portland named PARTS.
I decided awhile ago that PICs were going to be my microcontroller of choice. As such, I purchased a PIC Basic Pro Compilier, a MicroEngineering Labs Serial Programmer and have since built all the robots from Karl Williams three books, "Insectronics, "Amphibionics" and "Build Your Own Humanoid Robot".
I decided that I wanted to further increase my knowledge of using PICs so I decided I was going to try your turtorial.
The first problem I ran into was trying to obtain components/parts from RS Electronics (as that seemed to be the only electronics supplier you mention in the tutorials) as they would not accept my American Zip Code in my/their logging in process. I have since written them about this and they have written me back that they have got that straightened out for American customers now. Is Farnell the place I should have gone for the parts ? In the mean time, I set about trying to cross reference the European parts to their American (?) equilavent, i.e BC337 xstr. is a 2N4401 or MPSA06. (I think(?), I haven't been able to locate the xstr. in a TO-18 pkg.)
Has anyone (from the USA) ever requested that you provide the American (?) equilvant to the European parts ? I have been able to acquire about 90 % of the parts through Newark, Digikey and Jameco. If any of your readers would like that list I will gladly supply that information.
Here's a few other questions I have:
I2C Clock Board; Is the crystal 32Khz or 32Mhz ?
What brand/model is the LCD you used ? I have a 2 x 16, but if I run into problems using it, I would like to get the one you used.
RX Wireless board 2 x 100nF, that's 2 x 0.1uF, right ?
Main Board II- 2 x 12pf (is 12pf an odd cap. ?) Will a 10pF suffice ?
IR Board: 1 x 4.7 ohms ? and 1 x 47 ohms ? Are there a typo(s) here ? Also, I have not been able to find an IR receiver TFMS5360. Do you know what brand that is ? or an equilvant ? or give some addition info on that part ?
I purchased some horizontal (2.2K) & vertical pots (5K) that look like the ones you used but I think the lead spacing is going to be off. I guess I just have to make it do. I've always used the Bourns brand style of pots.
Thanks !!! Sorry so long winded.

KC · Joined: 05 May 2006 Posts: 99 Location: Victoria BC Canada

rick hardy · Joined: 07 Jun 2006 Posts: 10

Thanks for the clarification KC.

One more question please:

Do you know the brand or where I can get the keypad shown in the tutorials ?

KC · Joined: 05 May 2006 Posts: 99 Location: Victoria BC Canada

This is not the exact thing, but Digikey has this:
[img]http://rocky.digikey.com/WebLib/Grayhill/Web Photos/96BB2-056-F.jpg[/img]
http://lgrws01.grayhill.com/web/images/ProductImages/D-06-09.pdf

It may not be the same pinout as nigels, but you can rearrange the wiring to match as needed
_________________
KC

rick hardy · Joined: 07 Jun 2006 Posts: 10

Thanks again KC ! :I'll look that keypad up.

I have a couple (make that several) more questions regarding the orientation of certain caps on schematics:

RS232 board:
Are C3 & C4 orientated right ?
C3 shows the negative lead going to + 5V. (?)
C4 shows the positive lead going to GND. (?)

Analogue board:
I'm assuming all the capacitors shown in this circuit are electrolytics. (?)
(It doesn't show the - and the + on the caps like the other schematics.)
On the other schematics, the solid bar on the caps represents the negative side.
If all the caps are indeed electrolytics, then C3 has its' positive lead to GND. (?)

rick hardy · Joined: 07 Jun 2006 Posts: 10

KC,

I've been working through the boards and have a question about the orientation of the 3V battery on the I2C Clock board.

I always thought the long segment on one end of the schematic symbol for a battery was the positive side. If that's true, then the 3V battery is connected to the GND on the Molex connector. (??)

Thanks again !

Nigel Goodwin · Posted: Thu Jun 15, 2006 1:13 pm Post subject:

rick hardy · Joined: 07 Jun 2006 Posts: 10

Thanks Nigel, I thought so.

How about the orientation of the capacitors I mentioned in my post previous to this one. (?)

Thanks again !

KC · Joined: 05 May 2006 Posts: 99 Location: Victoria BC Canada

rick hardy · Joined: 07 Jun 2006 Posts: 10

Thanks again KC !

bob.bozanic · Joined: 13 Jan 2010 Posts: 2

Every component for the whole tutorial can be obtained from www.futurlec.com