The UK Home Automation Archive

Archive Home
Group Home
Search Archive


Advanced Search

The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024


[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

Relay light control problem



--001a114033eca858b90548650846
Content-Type: text/plain; charset=UTF-8

Hi

I've recently been trying to use relays to control the internal lights in
my garage, but I've been having issues. They are fluorescent tubes, two
controlled by each relay. The relays are those ones you see all over eBay,
with GPIO level inputs for control by a Raspberry Pi etc.

The issue I've had is that after a while they simply stick, always on. So
when the pi sends the signal for them to go off, the lights stay on.

I initially thought it was a faulty relay, but I ordered a replacement and
fitted them on Saturday, and now one side is stuck again.

Is it something to do with the load of these fluorescent tubes? Any ideas?

Regards

Simon
---
"sorrowful, yet always rejoicing; poor, yet making many rich; having
nothing, and yet possessing everything" 2 Cor 6:10

--001a114033eca858b90548650846
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable





<head>

<style type=3D"text/css">
<!--

/* start of attachment style */
.ygrp-photo-title{
clear: both;
font-size: smaller;
height: 15px;
overflow: hidden;
text-align: center;
width: 75px;
}
div.ygrp-photo{
background-position: center;
background-repeat: no-repeat;
background-color: white;
border: 1px solid black;
height: 62px;
width: 62px;
}

div.photo-title=20
a,
div.photo-title a:active,
div.photo-title a:hover,
div.photo-title a:visited {
text-decoration: none;=20
}

div.attach-table div.attach-row {
clear: both;
}

div.attach-table div.attach-row div {
float: left;
/* margin: 2px;*/
}

p {
clear: both;
padding: 15px 0 3px 0;
overflow: hidden;
}

div.ygrp-file {
width: 30px;
valign: middle;
}
div.attach-table div.attach-row div div a {
text-decoration: none;
}

div.attach-table div.attach-row div div span {
font-weight: normal;
}

div.ygrp-file-title {
font-weight: bold;
}
/* end of attachment style */
-->
</style>
</head>
<html>
<head>
<style type=3D"text/css">
<!--
#ygrp-mkp {
border: 1px solid #d8d8d8;
font-family: Arial;
margin: 10px 0;
padding: 0 10px;
}

#ygrp-mkp hr {
border: 1px solid #d8d8d8;
}

#ygrp-mkp #hd {
color: #628c2a;
font-size: 85%;
font-weight: 700;
line-height: 122%;
margin: 10px 0;
}

#ygrp-mkp #ads {
margin-bottom: 10px;
}

#ygrp-mkp .ad {
padding: 0 0;
}

#ygrp-mkp .ad p {
margin: 0;
}

#ygrp-mkp .ad a {
color: #0000ff;
text-decoration: none;
}
-->
</style>
</head>
<body>



<!-- **begin egp html banner** -->

<br><br>

<!-- **end egp html banner** -->


<div
dir=3D"ltr">Hi=C2=A0<div><br></div><div>I&#39;ve
recently been trying =
to use relays to control the internal lights in my garage, but I&#39;ve
bee=
n having issues. They are fluorescent tubes, two controlled by each relay.
=
The relays are those ones you see all over eBay, with GPIO level inputs
for=
control by a Raspberry Pi
etc.</div><div><br></div><div>The issue
I&#39;ve=
had is that after a while they simply stick, always on. So when the pi sen=
ds the signal for them to go off, the lights stay
on.</div><div><br></div><=
div>I initially thought it was a faulty relay, but I ordered a
replacement =
and fitted them on Saturday, and now one side is stuck
again.</div><div><br=
></div><div>Is it something to do with the load of these
fluorescent tubes?=
Any ideas?</div><div><br
clear=3D"all"><div><div
class=3D"gmail_signature"=
data-smartmail=3D"gmail_signature"><div
dir=3D"ltr"><div><div dir=3D"ltr">=
<div><div dir=3D"ltr"><div><div
dir=3D"ltr">Regards<br><br>Simon<div>---</d=
iv><div><div
style=3D"margin-bottom:0px;margin-left:0px;padding-bottom:5px"=
><div style=3D"overflow:hidden"><div
dir=3D"ltr"><div><div
dir=3D"ltr"><spa=
n
style=3D"font-size:13px;color:rgb(51,51,51);font-family:&#39;lucida
grand=
e&#39;,tahoma,verdana,arial,sans-serif;line-height:17px">&quot;</span><font=
color=3D"#333333" face=3D"lucida grande, tahoma, verdana,
arial, sans-seri=
f"><span
style=3D"font-size:13px;line-height:17px">sorrowful, yet
always re=
joicing; poor, yet making many rich; having nothing, and yet possessing
eve=
rything&quot; 2 Cor
6:10</span></font></div></div><div
style=3D"font-size:1=
3px"></div></div></div></div><div
style=3D"font-size:13px"></div></div></di=
v></div></div></div></div></div></div></div></div>
</div></div>




<!-- **begin egp html banner** -->

<br>


<br>

<!-- **end egp html banner** -->


<div width=3D"1" style=3D"color: white; clear:
both;"/>__._,_.___</div>

=20=20=20=20=20=20
=20=20

=20=20=20=20
<div id=3D"fromDMARC" style=3D"clear:both; margin-top:
10px;">
<hr style=3D"height:2px ; border-width:0; color:#E3E3E3; backgroun=
d-color:#E3E3E3;">
Posted by: Simon McCaughey &lt;simonmcc@xxxxxxx&gt;         <hr
=
style=3D"height:2px ; border-width:0; color:#E3E3E3;
background-color:#E3E3=
E3;">
</div>
<!-- Start Recommendations -->
<!-- End Recommendations -->


<!-- **begin egp html banner** -->

<br><br>
<tt>
&lt;*&gt; Join the Automated Home Forums<BR>
&nbsp;&nbsp;&nbsp;&nbsp; <a href=3D"http://www.automatedhome.co.uk/vbulleti=
n/">http://www.automatedhome.co.uk/vbulletin/</a><BR>
<BR>
&lt;*&gt; UKHA_D Mailing list in association with:<BR>
&nbsp;&nbsp;&nbsp;&nbsp; <a href=3D"http://www.automatedhome.co.uk";>http://=
www.automatedhome.co.uk</a><BR>
<BR>
<BR>
</tt>
<br><br>

<!-- **end egp html banner** -->



<!-- **begin egp html banner** -->

<img src=3D"http://geo.yahoo.com/serv?s=3D97476590/grpId=3D1109639/grpspI=
d=3D1705041992/msgId=3D166169/stime=3D1486973659"
width=3D"1" height=3D"1">=
<br>

<!-- **end egp html banner** -->

=20=20
<!-- **begin egp html banner** -->

<br>



=20=20=20
=20=20=20=20=20
=20
<!-- **begin egp html banner** -->
<div id=3D"ygrp-vital" style=3D"background-color:
#f2f2f2; font-fam=
ily: Verdana; font-size: 10px; margin-bottom: 10px; padding:
10px;">

<span id=3D"vithd" style=3D"font-weight: bold; color:
#333; text-tr=
ansform: uppercase; "><a href=3D"https://groups.yahoo.com/neo/groups/ukha_d=
/info;_ylc=3DX3oDMTJlNGRlM2NiBF9TAzk3MzU5NzE0BGdycElkAzExMDk2MzkEZ3Jwc3BJZA=
MxNzA1MDQxOTkyBHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTQ4Njk3MzY1OQ--"
style=3D"te=
xt-decoration: none;">Visit Your Group</a></span>

<ul style=3D"list-style-type: none; margin: 0; padding: 0; display:
in=
line;">
</ul>
</div>


<div id=3D"ft" style=3D"font-family: Arial; font-size:
11px; margin-top: 5p=
x; padding: 0 2px 0 0; clear: both;">
<a href=3D"https://groups.yahoo.com/neo;_ylc=3DX3oDMTJkdGpzZnFoBF9TAzk3ND=
c2NTkwBGdycElkAzExMDk2MzkEZ3Jwc3BJZAMxNzA1MDQxOTkyBHNlYwNmdHIEc2xrA2dmcARzd=
GltZQMxNDg2OTczNjU5" style=3D"float: left;"><img
src=3D"http://l.yimg.com/r=
u/static/images/yg/img/email/new_logo/logo-groups-137x15.png"
height=3D"15"=
width=3D"137" alt=3D"Yahoo! Groups"
style=3D"border: 0;"/></a>
<div style=3D"color: #747575; float: right;"> &bull;
<a href=3D"https://i=
nfo.yahoo.com/privacy/us/yahoo/groups/details.html"
style=3D"text-decoratio=
n: none;">Privacy</a> &bull; <a href=3D"mailto:ukha_d-unsubscribe@yahoogrou=
ps.com?subject=3DUnsubscribe" style=3D"text-decoration:
none;">Unsubscribe<=
/a> &bull; <a href=3D"https://info.yahoo.com/legal/us/yahoo/utos/terms/";
st=
yle=3D"text-decoration: none;">Terms of Use</a>
</div>
</div>

<!-- **end egp html banner** -->

</div> <!-- ygrp-msg -->

=20=20=20


<br>

<!-- **end egp html banner** -->


<div style=3D"color: white; clear:
both;"/>__,_._,___</div>
</body>

</html>

--001a114033eca858b90548650846--

UKHA_D Main Index | UKHA_D Thread Index | UKHA_D Home | Archives Home

Comments to the Webmaster are always welcomed, please use this contact form . Note that as this site is a mailing list archive, the Webmaster has no control over the contents of the messages. Comments about message content should be directed to the relevant mailing list.