http://forums.leaflabs.com/topic.php?id=2444 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:06:09 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=2444#post-12781 Tue, 21 Aug 2012 21:58:59 +0000 Anonymous 12781@http://forums.leaflabs.com/ <p>Yeah, I noticed the unpopulated through-plated holes. :) I did not read your post well enough, and I though that you were asking for my permission to post to the wiki instead of asking that I make the article. Sure, I'll get around to posting it. Right now I am coding at a frantic pace and waiting anxiously for my order of gears to show up. I cannot wait to get this thing finished and working. Sadly I won't be able to get a really good video of it in operation since none of my video cameras can pick up individual stars very well, but I'll get it figured out. I have a video uploading right now that shows the UI and my Playstation controller working with it. </p> http://forums.leaflabs.com/topic.php?id=2444#post-12776 Tue, 21 Aug 2012 17:22:33 +0000 mbolivar 12776@http://forums.leaflabs.com/ <p>Thanks for the advice. If you don't want to add the wiki entry, I'll try to get around to it soon.</p> <blockquote><p> Luckily the Maple designers were on the ball and made sure that, except for the wonky half-space-offset on one of the Arduino headers, the rest of the pins all line up with standard 0.1" spacing</p> </blockquote> <p>It's also worth noting for any future/lurker readers of this thread that, as a workaround, the unpopulated headers underneath the top row (Maple pins 0--14) all line up on 0.1" spacing with respect to the other pins on the board.</p> <p>If you solder your own female headers on those pins, you then get access to all the pins at 0.1". We sometimes use this to shove a piece of proto board with 0.1" male headers in the right places onto a Maple as a quick-and-dirty solution to the prototyping shield problem. </p> http://forums.leaflabs.com/topic.php?id=2444#post-12768 Tue, 21 Aug 2012 15:02:40 +0000 Anonymous 12768@http://forums.leaflabs.com/ <p>Yeah, i know about the disableDebugPorts() issue. :)</p> <p>Regarding posting in the wiki, there are two caveats regarding this board's 5V and GND busses that should be mentioned if you post this. I have no issue with you adding an entry. Luckily the Maple designers were on the ball and made sure that, except for the wonky half-space-offset on one of the Arduino headers, the rest of the pins all line up with standard 0.1" spacing. The following issues do need to be brought up though with using this prototyping shield.</p> <p>1. The 5V rail is normally fed from the header block on the Mega (the two pins above pins 22 and 23). Since these two pins lie outside of the Maple's footprint, there will be no power to the 5V bus. This is actually a good thing because you can tie your choice of 3.3V, 5V, or whatever you want to this bus and it won't connect to anything on the Maple unless you wire the bus to one of the voltage pins. In my case, I am bypassing the power-selection jumper (set to External) and am applying 5V to the Vin which is also tied to the 5V Bus on the prototyping shield so that I can drive 2+ Amps from my external PSU and not from the Maple.</p> <p>2. The Ground rail *IS* connected to the GND pins on the pin headers, however the GND rail is positioned directly above the unpopulated pins 21 and 22 on the Maple. If you have soldered a pin or socket header to pins 21 and 22 on the Maple, you will not be able to directly extend them up to this prototyping board. </p> http://forums.leaflabs.com/topic.php?id=2444#post-12763 Tue, 21 Aug 2012 13:39:49 +0000 mbolivar 12763@http://forums.leaflabs.com/ <p>Awesome, it's good to know that this works. Thanks for posting. Would you mind adding this to the wiki somewhere?</p> <p>By the way, if you do need to use the JTAG pins as GPIOs, make sure you call <a href="http://leaflabs.com/docs/lang/api/disabledebugports.html">disableDebugPorts()</a> first. </p> http://forums.leaflabs.com/topic.php?id=2444#post-12733 Mon, 20 Aug 2012 18:50:42 +0000 Anonymous 12733@http://forums.leaflabs.com/ <p>I got my Mega prototyping shield. It worked out perfectly. I am considering soldering some female headers to the bottom so that they will engage the JTAG header just in case I need the extra IO pins.</p> <p><a href="https://lh6.googleusercontent.com/-0dYLUNa5S9g/UDLMEzhobEI/AAAAAAAAB1w/c-Qg5gEhPeQ/s800/%255BUNSET%255D.jpg" rel="nofollow">https://lh6.googleusercontent.com/-0dYLUNa5S9g/UDLMEzhobEI/AAAAAAAAB1w/c-Qg5gEhPeQ/s800/%255BUNSET%255D.jpg</a></p> <p><a href="https://lh5.googleusercontent.com/-O24xJt7yZyM/UDLMHwUXqCI/AAAAAAAAB14/TZ5AKJjiOfE/s800/IMG_20120820_164402.jpg" rel="nofollow">https://lh5.googleusercontent.com/-O24xJt7yZyM/UDLMHwUXqCI/AAAAAAAAB14/TZ5AKJjiOfE/s800/IMG_20120820_164402.jpg</a></p> <p>Now I just need to populate it for my project. :) </p> http://forums.leaflabs.com/topic.php?id=2444#post-12450 Wed, 15 Aug 2012 13:49:49 +0000 Anonymous 12450@http://forums.leaflabs.com/ <p>Hey all,</p> <p>I know that a prototyping shield for the Maple is probably in high demand, but I have not been able to find one custom made for the Maple. I did, however, find something on Sparkfun that appears to be workable: <a href="https://www.sparkfun.com/products/9346" rel="nofollow">https://www.sparkfun.com/products/9346</a></p> <p>This board is designed for a Mega, but the kit is unassembled so you can put the headers wherever you want. My plan is to put two of the 1x8 headers in the prototyping space to mate with the socket on the Maple containing pins 23-37+GND. </p> <p>The board is a bit larger than the Maple, but most prototyping boards have the female ICSP header in place that interferes with the Maple's 16 pin female header. I'll let you guys know how workable this is once I receive my order. </p>