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change approach again

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Wolfgang Hottgenroth
2018-05-09 14:31:22 +02:00
parent 54a933c83a
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define(`TITLE', `M-Bus Master, Part 5')
define(`DATE', `2013-09-21')
define(`CONTENT', `
Final (hopefully) part of hardware work
Besides putting everything into a nice aluminum enclosure, replacing the linear voltage regulator - which burns three times as much power as the whole circuits consumes - by an SMPS (based on the old L4962) an over-current-protection and two status LEDs have been added.
<a href="http://a385e-5.de/wp-content/uploads/2013/09/laser-drucker_0051221.jpg"><img src="http://a385e-5.de/wp-content/uploads/2013/09/laser-drucker_0051221-278x300.jpg" alt="laser-drucker_005122" width="278" height="300" class="alignnone size-medium wp-image-231" /></a>
<a href="http://a385e-5.de/wp-content/uploads/2013/09/Foto-11.jpg"><img src="http://a385e-5.de/wp-content/uploads/2013/09/Foto-11-300x225.jpg" alt="Foto 1" width="300" height="225" class="alignnone size-medium wp-image-217" /></a>
(Milling aluminum is something else than milling wood. One cutter and nearly the front panel have been ruined. Don'`t know how to do it right, but very slow revolution and feed helped at least a bit. Maybe the cutter should have been cooled.)
<a href="http://a385e-5.de/wp-content/uploads/2013/09/Foto-4-Kopie-e1379788252466.jpg"><img src="http://a385e-5.de/wp-content/uploads/2013/09/Foto-4-Kopie-e1379788252466-300x225.jpg" alt="Foto 4 Kopie" width="300" height="225" class="alignnone size-medium wp-image-222" /></a>
<a href="http://files.a385e-5.de/files/NetMeterBusMaster-0.9.tar.gz" target="_blank">Here</a> is the firmware for the Arduino.
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