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PICList Thread
'[EE]: Cheap & Easy LCD'
2001\08\10@030333 by Randy Myers

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I'm a newcomer to PICs and am looking for a cheap and
easy-to-use 2x16 backlit LCD for use with a 16F872.
I'm hoping to use some off-the shelf code to get up
and running.  Can anyone offer a suggestion/source?
Thanks in advance. . .

Randy

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2001\08\10@030356 by Randy Myers

picon face
I'm a newcomer to PICs and am looking for a cheap and
easy-to-use 2x16 backlit LCD for use with a 16F872.
I'm hoping to use some off-the shelf code to get up
and running.  Can anyone offer a suggestion/source?
Thanks in advance. . .

Randy


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Do You Yahoo!?
Make international calls for as low as $.04/minute with Yahoo! Messenger
http://phonecard.yahoo.com/

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2001\08\10@043454 by dpharris

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Hi-
Try http://www.eio.com/lcdprodt.htm
Code should be in the Piclist archives (address at bootom of this message)
David

Randy Myers wrote:

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2001\08\10@050021 by Vasile Surducan

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www.geocities.com/vsurducan/pic.htm
http://www.myke.com/lcd.htm

On Fri, 10 Aug 2001, Randy Myers wrote:

{Quote hidden}

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2001\08\10@080327 by Herbert Graf

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Try http://www.bgmicro.com, they often have very good prices on LCDs. TTYL

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2001\08\10@212003 by Benjamin Bromilow

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Hi Randy,

I used the Seiko C550001 LCDs from EIO (http://www.eio.com). I've posted some
example code and handy hints on their website (like don't drill out the
small holes in the solder tabs to take a wire, they connect up the various
layers of the PCB. Doh).. The code is for a 16F84A but it should port
across after changing the config and chip descriptions. Nice little units.
Got good service from EIO as well, though there is a minimum order ($20?).
AFAIK C550001 units are $6 each.

Ben

{Original Message removed}


'[EE] Cheap & simple RF link'
2010\07\23@234327 by David Duffy (AVD)
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I have an application for remote control of some costume lighting. Each performer will have a battery pack and some 24V LED lighting.

The requirement is to turn all 18 costumes on and off remotely in unison. A small amount of lag is ok as the lighting will only be turned on once they are all in the arena, and turned off as they exit about 10 minutes later. Getting the performers to control their own lighting is not an option.

Required range is approx 60 metres (200') maximum from the single transmitter to the furthermost performer. One thing that does concern me is the effects of the performer's costume and body on the RF range.

The battery may be 2x 12V units, or a single 12V unit with a step up converter. Receiver interference from a converter may also be a problem, so we may stick with 2 batteries. This would also allow for a more balanced costume design.

I was thinking of 433MHz with a simple decoder chip, similar to a garage door opener. The arena is enclosed with sheet iron panelling, and the closest parking is probably 50 metres outside which should limit interference from car remotes.

Any suggestions or experiences would be greatly appreciated.  Thank you.
David...

-- ___________________________________________
David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: http://www.audiovisualdevices.com.au
___________________________________________

2010\07\24@000938 by ivp

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> I was thinking of 433MHz with a simple decoder chip, similar to
> a garage door opener. The arena is enclosed with sheet iron
> panelling, and the closest parking is probably 50 metres outside
> which should limit interference from car remotes

I use the 433MHz ZW3100 and ZW3102 modules, originally
from Jaycar/Electus but now I get them in quantity from Taiwan

A 12F629 is used at either end to handle Manchester encoding of
a number unique to each pair. Time delay for this is about 200ms

200m line-of-sight is possible with a 1/4 wave (34cm) aerial in good
conditions. 100m is very reliable outside, even in heavy rain through
two wet buildings. Range is still OK with 1/16th, or even no aerial.

I've not experienced any interference problems in several years

Joe

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2010\07\24@004117 by David Duffy (AVD)

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ivp wrote:
>> I was thinking of 433MHz with a simple decoder chip, similar to
>> a garage door opener. The arena is enclosed with sheet iron
>> panelling, and the closest parking is probably 50 metres outside
>> which should limit interference from car remotes
>>    
>
> I use the 433MHz ZW3100 and ZW3102 modules, originally
> from Jaycar/Electus but now I get them in quantity from Taiwan
>
> A 12F629 is used at either end to handle Manchester encoding of
> a number unique to each pair. Time delay for this is about 200ms
>
> 200m line-of-sight is possible with a 1/4 wave (34cm) aerial in good
> conditions. 100m is very reliable outside, even in heavy rain through
> two wet buildings. Range is still OK with 1/16th, or even no aerial.
>
> I've not experienced any interference problems in several years
>  
The receivers will be worn under heavy coats with potentially sweaty performers, so I'm not sure how much that will knock the signal around.  I haven't seen the costumes close up yet, so not sure how easy it will be to place a large aerial.
David...

-- ___________________________________________
David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: http://www.audiovisualdevices.com.au
___________________________________________

2010\07\24@005042 by Harold Hallikainen

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After getting several suggestions from the list, I've chosen the Unigen
UGWG4USHN33A 2.4 GHz Module with FCC modular Certification for a project
I'm working on. One that almost made it is the RF Digital RFD21733 Module.

Harold


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2010\07\24@005211 by ivp

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> The receivers will be worn under heavy coats with potentially
> sweaty performers, so I'm not sure how much that will knock
> the signal around

A customer I'm trying to convince to use my units has been trying
them out. He didn't believe me when I told him the signal is pretty
pervasive. Get this - he put the receiver in a saucepan, inside the
oven and he transmitted from inside his car. No problem. Now he
believes me

> I haven't seen the costumes close up yet, so not sure how easy
> it will be to place a large aerial

A piece of hook-up wire will probably do fine

For a project I'm evaluating I might use a repeater. That would be
to keep the user's aerials short, with the repeater having the long
one. However, it would be possible to design a tuned system that
doesn't rely simply on aerial length. That is the next step in my
evaluation

Joe

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**********
Quality PIC programmers
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{Original Message removed}

2010\07\24@025335 by Charles Craft

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Double the price for a 5 volt board.
Guess I better give up on 12V CMOS coming back and learn to use 3.3v parts. :-)

Voltage(V)Digi-KeyPart No.Price Each Unigen 1 10 25 Part No.
3.3 784-1011-ND 11.99 8.99 7.25 UGWG4USHN33A
5 784-1014-ND 23.99 18.49 14.79 UGQLUE4USE050A
5 784-1015-ND 23.99 18.49 14.79 UGQLPE4USE050A
6 ~ 9 784-1016-ND 79.99 69.99 57.20 UGWF4US50A

On 7/24/2010 1:22 AM, Harold Hallikainen wrote:
> After getting several suggestions from the list, I've chosen the Unigen
> UGWG4USHN33A 2.4 GHz Module with FCC modular Certification for a project
> I'm working on. One that almost made it is the RF Digital RFD21733 Module..
>
> Harold
>
>
>

2010\07\26@123200 by Vitaliy

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Harold Hallikainen wrote:
> After getting several suggestions from the list, I've chosen the Unigen
> UGWG4USHN33A 2.4 GHz Module with FCC modular Certification for a project
> I'm working on. One that almost made it is the RF Digital RFD21733 Module..

Why did you choose one over the other?

2010\07\27@030411 by David Duffy (AVD)

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[switched from 12V boost thread]
On 27/07/2010 8:22 AM, ivp wrote:
>> With the actual budget presented (since my first post), it's rapidly
>> looking like they'll have to go with the actors switching their own
>> costume lighting on and off with a switch
>>      
> That's a pity. The impact of all the lights turning on exactly at once
> will probably be lost. ;-(
>    
After further discussions with the client, it seems that the LEDs *may* work on 12V.  If they're rated for 24V I don't see how that's possible unless they use constant current drivers internally, but they're sending me a sample in due course to verify.

So, the 12V > 24V converter can be shelved (for now), and we can get back to the RF links and 12V charging system.  There's also talk of a small increase in the budget.  Oh the joys of clients!
David...

-- ___________________________________________
David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: http://www.audiovisualdevices.com.au
___________________________________________

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