http://forums.leaflabs.com/topic.php?id=1426 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:17:31 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=1426#post-8509 Tue, 06 Mar 2012 11:14:35 +0000 gbulmer 8509@http://forums.leaflabs.com/ <p>jonjones - the Maple has both pull-up and pull-down resistors on-board.</p> <p>They are NOT controlled in the same way as the Arduino. </p> <p>If you look at the specification of <a href="http://leaflabs.com/docs/lang/api/pinmode.html#lang-pinmode">pinMode()</a> you can see that the resistors are set using the pin modes <code>INPUT_PULLUP</code> and <code>INPUT_PULLDOWN</code>; there are several other modes.</p> <p>IMHO, the Arduino technique isn't sufficiently explicit, and doesn't work well if input pins can be pull-up, pull-down or floating inputs, as supported by STM32F MCUs.</p> <p>(Full disclosure: I am not a member of LeafLabs staff) </p> http://forums.leaflabs.com/topic.php?id=1426#post-8508 Tue, 06 Mar 2012 09:10:23 +0000 bubulindo 8508@http://forums.leaflabs.com/ <p>Have you tried the button example? </p> http://forums.leaflabs.com/topic.php?id=1426#post-8504 Mon, 05 Mar 2012 21:14:26 +0000 jonjones 8504@http://forums.leaflabs.com/ <p>I'm trying to handle buttons and mechanical rotary encoders in the way I'm used to with Arduino, i.e. gnd -&gt; switch -&gt; pin with pullup enabled and detect a pin low event.</p> <p>Well, its not working at all. I need to use external pullup to get it to work. </p> <p>Could someone enlighten me to whats the difference between Arduino and Maple pullups ? Can I do workable buttons and encoders without the need for external pull-ups/downs ? </p>