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<div class="moz-cite-prefix">Excellent catch for newby. It is by no
means the only way to approach the problem, but a very effective
one.<br>
<br>
The 2mA draw of the LED in the optoisolator is well within the
GPIO pin specs of the Raspberry Pi.<br>
<br>
However make sure that you use a separate 5V supply to power the
relay board, but you can power the opto- LED from the R'Pi's 3.3V
power if you use a 470ohm resister (R1) instead and forgo the
extra LED (IN1), or use a 120ohm resister if you keep the extra
LED.<br>
<br>
On 11/03/2013 08:53 AM, Lucas Rumney wrote:<br>
</div>
<blockquote
cite="mid:CACCReNJv7M6znD9=H_fz72dirc01vwXnEO3KLxdUYJW5BFBPRQ@mail.gmail.com"
type="cite">
<div dir="ltr">I am sorry to email the group yet again for the
same project, but I have been doing research and I wanted to
know if there would be any issues with using these parts
together, and if they could be put together into a circuit that
would actually protect the pi, and control the solenoid with the
pi (I am a real noob at this, but I don't intend to be for
long)?<br>
<br>
<br>
<div>would this optoisolated relay board cover all of the parts
I need, and be in the correct range (safe fore the raspberry
pi, and also usable with the solenoid linked later in the
email?)<br>
<a moz-do-not-send="true"
href="http://yourduino.com/sunshop2/index.php?l=product_detail&p=218">http://yourduino.com/sunshop2/index.php?l=product_detail&p=218</a></div>
<div><br>
</div>
<div>solenoid: <br>
<a moz-do-not-send="true"
href="http://www.adafruit.com/products/413#Technical_Details">http://www.adafruit.com/products/413#Technical_Details</a><br>
<br>
I have read up on the relay board, but I don't understand all
of the stats, and I dont want an imcompatability to ruin my
pi. </div>
<div><br>
</div>
<div>Thank you guys for being so helpful, I've been trying to
get this done in between work and school. <br>
<br>
Lucas </div>
</div>
<br>
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<pre wrap="">_______________________________________________
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<font face="Comic Sans MS"> </font><br>
<br>
<pre class="moz-signature" cols="80">--
Scott G. Hall
Raleigh, NC, USA
<a class="moz-txt-link-abbreviated" href="mailto:ScottGHall1@GMail.Com">ScottGHall1@GMail.Com</a>
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