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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: '''Trigger output''' What's the most sane way to check that ignition works as it's supposed to? I don't want to install expensive IGBTs on this development board, so I wondered if pulling a signal cable from the bottom hole for the IGBTs to a NPN transistor which controlled a LED would be a good idea? Would this work? If not, what's the /easiest/ way to accomplish this? http://www.vems.hu/files/FredrikJagenheim/trigger.png ---- '''HALL:''' (done) '''Trigger1:''' Pin is connected to IC by 10k R55 and shorted SJ2. It's protected by a 5.1V zener on D14 and a short on D13. '''Trigger2:''' Pin is connected to IC by 10k R91 and shorted SJ5. It's protected by a 5.1V zener on D27 and short on D24. The signal should look like this 'hall signal -> pulled up by 10k to 5v -> 10k series resistor -> 5v1 zener to ground -> ic1 pin'. Thanks, Dave. '''Schematic diagram showing the recommended hall setup''' [http://www.vems.hu/files/DaveBrul/mini_hall.JPG hall schematic diagram] Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.