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196  Using Arduino / Displays / auto contrast display. on: June 07, 2012, 12:42:45 pm
hi,
ive just brought a 20 4 display just noticed thats its an auto contrast display, i cant get it to go, its set us as "hello world" just wondering if i should feed +5v into V0 as thats where the wiper went?
thank you

ive just noticed a very very very  faint, hello world, how can wind it up if its auto contrast??
197  Using Arduino / General Electronics / Re: Could someone make me a Eagle part Bosch CJ125? on: June 06, 2012, 09:37:28 am
designspark has billions of components in their library's, that one is in there, design spark is a very very easy to use
i also vouch for expresssch.
198  Using Arduino / General Electronics / Re: re-set pin 1 what does it do? on: June 04, 2012, 09:34:50 am
thanks
199  Using Arduino / General Electronics / re-set pin 1 what does it do? on: June 03, 2012, 07:14:02 am
hi,
just wondering what actually happens within the ic when, a low is applied to pin 1, im thinking the software is re-loaded somehow and starts again?
thank you
200  Using Arduino / Programming Questions / Re: Thermostat type program - wanted on: June 03, 2012, 05:01:14 am
no i couldnt, i managed to find a gps type project, thats the reason why i posted here for help in finding one.

thank you dxwood, now ive found a few
201  Using Arduino / Programming Questions / Thermostat type program - wanted on: June 03, 2012, 04:27:28 am
hi,
i dont suppose anybody has come across a thermostat type program have searched high/low but havnt found anything, what im looking for is something that you can control the temp of a room via a fan.

ie when the temp gets out of range it turns on a relay which switches on a fan to cool down the room, then switches off when the temp is correct.

be great if an lcd was involved to see the temp as well

thank you 
202  Using Arduino / General Electronics / Re: How long a wire can you use to connect two arduino's before you get data loss? on: May 31, 2012, 02:39:27 pm
best way is to test it and see, i tested a 45m run 1mm stranded wire, screened worked fine, i was switching 0v's, i measured a 5v, and i got 4.98v out the other end, id use a 100m run of cat5 screened to guard from interference.
203  Using Arduino / General Electronics / Re: Unuasual pot on: May 30, 2012, 05:22:35 pm
found one, thank you
204  Using Arduino / General Electronics / Unuasual pot on: May 30, 2012, 05:00:56 pm
hi,
ive got a project in mind that requires an unusual pot, im after a pot for a front panel that has a monetary push switch on it, so when you turn it then push to make the switch, dont soppose anybody knows where to get one or what they are called? im in the uk

thank you
205  Using Arduino / General Electronics / Re: How to solder a piezo? on: May 30, 2012, 02:12:07 pm
used to solder millions of these years ago when i worked for pision, you have to be very quick on the centre bit, else you will damage it
206  Using Arduino / General Electronics / re-set pin resistor on: May 29, 2012, 08:27:38 am
hi,
ive just finished laying out a uno bare board / breakout board, and ive just noticed the re-set pin (1) resistor is only 1k as compared to 10k on the uno? wondering which one is correct?
cheers
207  Using Arduino / General Electronics / Re: please check my breakout board circuit on: May 27, 2012, 11:21:00 am
hi jo
thanks, i was intending to use 22pf, fit a 10k to +5?  is the 10k to stop the re-set from floating about?
cheers
(edited my circuit)
208  Using Arduino / General Electronics / please check my breakout board circuit on: May 27, 2012, 10:04:06 am
hi,
about to make a homebroo board, for my bareboard/breakout board just hoping someone could give it the once over and check its ok
thank you

209  Development / Other Software Development / Re: is this programmer any good for bootloading? on: May 27, 2012, 08:14:01 am
thank you, think ill go with the USBtinyISP
210  Development / Other Software Development / is this programmer any good for bootloading? on: May 27, 2012, 05:28:33 am
hi,
after messing about for ages with a blank chip without any success, thought id try this programmer to burn the bootloader really asking if this is any good or is there a better one available?

thank you

http://www.ebay.co.uk/itm/250986784243?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
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