<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Roger,<div>Since our picaxe was running on 5V we used 6v relays which are a bit harder to find than the more common 12v types.</div><div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Lucida Grande'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Peter A Ward</div><div>ePotential Coordinator</div><div>Euroa Secondary College</div><div><a href="mailto:ward.peter.a@edumail.vic.gov.au">ward.peter.a@edumail.vic.gov.au</a></div></div></div></span> </div><br><div><div>On 28/06/2008, at 2:00 AM, Roger Knight wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="WORD-WRAP: break-word"> <div id="idOWAReplyText68412" dir="ltr"> <div dir="ltr"><font face="Arial" color="#000000" size="2">Thanks for this Peter. </font></div> <div dir="ltr"><font face="Arial" color="#000000" size="2">I have tried this. Trouble is the coil on the relay I have requires greater than the current available from the picaxe output pin. Can you recommend a relay that will do the job?</font></div> <div dir="ltr"><font face="Arial" size="2"></font> </div> <div dir="ltr"><font face="Arial" size="2">Cheers ... Roger</font></div></div> <div dir="ltr"><br> <hr tabindex="-1"> <font face="Tahoma" size="2"><b>From:</b> <a href="mailto:syseng-bounces@edulists.com.au">syseng-bounces@edulists.com.au</a> on behalf of Peter A Ward<br><b>Sent:</b> Fri 27/06/2008 11:58 PM<br><b>To:</b> Systems and Engineering Teachers' Mailing List<br><b>Subject:</b> [Systems Engineering Teachers' Mailing List] PICAXE Help<br></font><br></div> <div>Dear Roger, <div>Try using a relay. The Picaxe may not be able to supply the windscreen wiper motor with enough current or its getting interference back from the motor. </div> <div>Here is some examples of relays used to run 12 volt car motors from an 08M picaxe from a couple of years ago.</div> <div><br></div> <div><img height="640" src="http://mail.stpats.vic.edu.au/RKnight/Drafts/IMG_0869.jpg" width="484"></div> <div><br></div> <div><img height="640" src="http://mail.stpats.vic.edu.au/RKnight/Drafts/IMG_0870.jpg" width="484"></div> <div><br></div> <div>relay with picaxe 08M </div> <div><br></div> <div><img height="480" src="http://mail.stpats.vic.edu.au/RKnight/Drafts/IMG_0873.jpg" width="644"></div> <div><br></div> <div>This was an egg incubator eventually controlled by a picaxe via relay.</div> <div><br></div> <div>Hope this helps</div> <div><br> <div><span class="Apple-style-span" style="WORD-SPACING: 0px; FONT: 14px 'Lucida Grande'; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2"> <div style="WORD-WRAP: break-word"> <div> <div>Peter A Ward</div> <div>Systems Teacher</div> <div>Euroa Secondary College</div> <div><a href="mailto:ward.peter.a@edumail.vic.gov.au">ward.peter.a@edumail.vic.gov.au</a></div></div></div></span></div><br> <div> <div>On 27/06/2008, at 6:45 PM, Roger Knight wrote:</div><br class="Apple-interchange-newline"> <blockquote type="cite"><span class="Apple-style-span" style="WORD-SPACING: 0px; FONT: 14px 'Lucida Grande'; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2"> <div lang="EN-AU" vlink="purple"> <div id="idOWAReplyText989" dir="ltr"> <div dir="ltr"><font face="Arial" color="#000000" size="2">Greetings all. Is there anybody out there who can explain how to run a common 12 volt windscreen wiper motor with a PICAXE?</font></div> <div dir="ltr"><font face="Arial" size="2">I've been using PICAXE for 3 years now and I'm sick of the "dinkyness" of it all. Lets make this baby do something REAL for a change, is where I'm at right now. There has to be some way we can integrate it into the real world. Any help would be appreciated.</font></div><font face="Arial" size="2"></font></div> <div dir="ltr"> </div> <div dir="ltr"><font face="Arial" size="2">Cheers ... Roger</font> <div dir="ltr"><br></div> <div dir="ltr"> <hr tabindex="-1"> </div> <div dir="ltr"> </div></div></div></span></blockquote></div><br></div></div></div></blockquote></div><br></div></body></html>