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Hahaha!<div><br /></div><div>I actually had to make a small circuit board, featuring a relay, transistor, diode and resistor to achieve that. The current coming out of the Pi's GPIO pins is too teeny to switch a normal relay (and can possibly damage the Pi if used as a power source). So there's a little board in that box, taking the ~3mA output and using it to activate a transistor running from the Pi's 5v rail to finally throw the damned relay. </div><div><br /></div><div>I can supply you with the circuit diagram if you want? :-D</div><div><br /></div><div>Neal. <br /><br />
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<a href="https://tutanota.com" target="_blank">https://tutanota.com</a><br /><br />18. May 2016 10:50 by <a href="mailto:nottingham@mailman.lug.org.uk" target="_blank">nottingham@mailman.lug.org.uk</a>:<br /><br /><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;">On 18/05/16 09:32, Neal Ponton via Nottingham wrote:<blockquote>This is also my handiwork:<br /><a href="https://youtu.be/j1QhqZyoLbA" target="_blank">https://youtu.be/j1QhqZyoLbA</a></blockquote>That is pretty awesome - way beyond what I'd feel comfortable doing. Or be allowed to do!<br /><blockquote>I've taken it apart and restored to normal, now, because I got cold feet<br />with regards health and safety legislation.</blockquote>Shame there's no remote control on that unit, you might have been able to subvert that with the RPi.<br />We have one and looks all whizzo-bangy, yet one can't set a different profile for the w/end which is just stupid.<br /><br />It's a common part...could buy one on ebay...I'll have spare RPi soon....GET OUT OF MY HEAD, NEAL!<br /><br />-- <br />╔═════════════╦══════════════════════════════════════════╗<br />║ Jason Irwin ║ OpenPGP (GPG/PGP) Public Key: 0xD0C592B1 ║<br />║ ║ Import from hkp://pgp.mit.edu ║<br />╚═════════════╩══════════════════════════════════════════╝<br /><br />_______________________________________________<br />Nottingham mailing list<br /><a href="mailto:Nottingham@mailman.lug.org.uk" target="_blank">Nottingham@mailman.lug.org.uk</a><br /><a href="https://mailman.lug.org.uk/mailman/listinfo/nottingham" target="_blank">https://mailman.lug.org.uk/mailman/listinfo/nottingham</a></blockquote></div> </body>
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