Colony Scout: Issueshttps://roboticsclub.org/redmine/https://roboticsclub.org/redmine/redmine/favicon.ico2011-11-07T21:48:08ZRobotics Club
Redmine Task #1907 (Assigned): Check speaker magnet interference with IMU/Compasshttps://roboticsclub.org/redmine/issues/19072011-11-07T21:48:08ZDan Shopedshope@andrew.cmu.edu
<p>Will placing a small speaker near the compass (less than 1" away) cause interference due to the magnetic fields?</p>
<p>If so, how can we mitigate this? - Calculations, numerical values of separation, etc.</p> Task #1798 (Assigned): Mechanical Work Loghttps://roboticsclub.org/redmine/issues/17982011-10-09T07:57:04ZDan Shopedshope@andrew.cmu.edu
<ul>
<li>Create undercut latch for hood (center, recess on front lip)</li>
<li>Increase height of hood scoop (aesthetic)</li>
<li>Model hood/switch as multibody part so changes to hood geometry propagate to buttons
<ul>
<li>Use offset surface so "1" and "2" cuts are constant distance from top surface</li>
<li>Create "V" pivot on button piece, and corresponding "V" cutout on hood</li>
<li>Create a slide-on locking piece to prevent button from falling out of hood</li>
</ul>
</li>
<li>Check wiring clearances inside rear chassis - some difficulty assembling right now<br /><del>* Change ScoutFly fasteners (4) to small thread forming screws, check clearance with headlights</del><br /><del>* Design triangular number flag on Sonar stem</del><br /><del>** Print a paper label and slide in one side, wraps around all 3 sides</del>
<ul>
<li>Label should have number (ex "101") AND allocation for naming (ex "Mr. Bickles")
<ul>
<li>name in small font, need to determine character limit, number in large font</li>
</ul></li>
</ul></li>
</ul> Task #1793 (Fixed): Create mockup for Cliff Sensor Testinghttps://roboticsclub.org/redmine/issues/17932011-10-07T08:57:56ZDan Shopedshope@andrew.cmu.edu
<p>Build a mock Scout (or provide dimensions to MechE team) that holds (3) cliff sensors for testing.</p> Task #1789 (Fixed): Test Cliff Sensorshttps://roboticsclub.org/redmine/issues/17892011-10-06T06:01:56ZDan Shopedshope@andrew.cmu.edu
<p>Option 1:<br />Wire cliff sensors directly to LEDs, move across different surfaces and record behavior (false positives, false negatives, etc)</p>
<p>Option 2:<br />Wire cliff sensors into a microcontroller, also wiring in IR reflectance sensors as a control, and log values while moving across different surfaces</p>
<p>Option 3:<br />Scrap cliff sensors :)</p>
<ul>
<li>For all tests there should be (3) cliff sensors assembled onto a fake Scout model that holds the sensors in the proper orientation and relative positions, elevated above the ground like on a Scout.</li>
<li>A detailed log should be maintained to figure out activation patterns and potentially troublesome surfaces (high rate of false positives).</li>
<li>Test on any reasonable floor surface - concrete, glossy tile, white tables, plywood, wood flooring in the TV lounge, etc.</li>
</ul> Task #1777 (Fixed): Parts Order for Fall Prototype Testinghttps://roboticsclub.org/redmine/issues/17772011-10-03T18:44:21ZDan Shopedshope@andrew.cmu.edu
For testing IR BOM
<table>
<tr>
<td>QTY</td>
<td>ITEM</td>
<td>LINK</td>
<td>$/EA</td>
</tr>
<tr>
<td>8</td>
<td>60K6999</td>
<td><a href="http://www.newark.com/vishay-semiconductor/tsop4838/ir-receiver-45m-950nm-sip/dp/60K6999?Ntt=60K6999" class="external">Page</a></td>
<td>$0.905</td>
</tr>
<tr>
<td>20</td>
<td>95B4858</td>
<td><a href="http://www.newark.com/vishay-semiconductor/tsal6200/ir-emitter-940nm-t-1-3-4-through/dp/95B4858?Ntt=95B4858" class="external">Page</a></td>
<td>$0.285</td>
</tr>
</table>
For testing Sonar and Cliff Sensors
<table>
<tr>
<td>QTY</td>
<td>ITEM</td>
<td>LINK</td>
<td>$/EA</td>
</tr>
<tr>
<td>4</td>
<td>EZ4 Sonar</td>
<td><a href="http://www.sparkfun.com/products/8504" class="external">Page</a></td>
<td>$27.95</td>
</tr>
<tr>
<td>3</td>
<td>1134</td>
<td><a href="http://www.pololu.com/catalog/product/1134" class="external">Page</a></td>
<td>$6.95</td>
</tr>
</table>
For mechanical/motor testing
<table>
<tr>
<td>QTY</td>
<td>ITEM</td>
<td>LINK</td>
<td>$/EA</td>
</tr>
<tr>
<td>4</td>
<td>100:1 Motor</td>
<td><a href="http://www.pololu.com/catalog/product/1101" class="external">Page</a></td>
<td>$15.95</td>
</tr>
<tr>
<td>2</td>
<td>Bracket Pair</td>
<td><a href="http://www.pololu.com/catalog/product/1089" class="external">Page</a></td>
<td>$4.99</td>
</tr>
</table> Task #1536 (Fixed): Add WhereUsed category to inventory dbhttps://roboticsclub.org/redmine/issues/15362010-10-23T09:02:38ZDan Shopedshope@andrew.cmu.edu
<p>used for important parts to aid in documenting usage</p> Task #1511 (Fixed): Probes for small SMT partshttps://roboticsclub.org/redmine/issues/15112010-10-13T07:04:27ZDan Shopedshope@andrew.cmu.edu
<p>Find small probes for checking SMT components (MLF, LGA, TSSOP, etc)</p> Task #1381 (Fixed): acquire ATMega 128RFA1 chipshttps://roboticsclub.org/redmine/issues/13812010-08-28T02:35:19ZDan Shopedshope@andrew.cmu.edu
<p>in stock here w/ a 12 to 16 week lead time<br /><a class="external" href="http://webapps.nuhorizons.com/storefront/PartSearch.do?PartNumberSearch=ATMEGA128RFA1-ZU&Manufacturer=ALLMFG&InStockOnly=FALSE&PbFreeOnly=null&ItemsPerPage=25&PageNum=1&PartNumberHolder=&Mode=initSearch&PostAction=GO&ResultsPerPage=25&NextPage=1&Commodity=ALL&CalledFromLink=YES&prevSearchType=&pSearchType=CompanyPart&referrerSite=&referredBy=http://www.stkcheck.com/evs/atmel/atmelheader2.asp?mfg=atmel&part=ATmega128RFA1">http://webapps.nuhorizons.com/storefront/PartSearch.do?PartNumberSearch=ATMEGA128RFA1-ZU&Manufacturer=ALLMFG&InStockOnly=FALSE&PbFreeOnly=null&ItemsPerPage=25&PageNum=1&PartNumberHolder=&Mode=initSearch&PostAction=GO&ResultsPerPage=25&NextPage=1&Commodity=ALL&CalledFromLink=YES&prevSearchType=&pSearchType=CompanyPart&referrerSite=&referredBy=http://www.stkcheck.com/evs/atmel/atmelheader2.asp?mfg=atmel&part=ATmega128RFA1</a></p>
<p>Otherwise it's March 2011. This was linked directly from Atmel's website, so should be legit.</p> Task #1087 (Fixed): Design Breakflyhttps://roboticsclub.org/redmine/issues/10872010-02-07T02:17:27ZKevin Woo
<p>FFC/cgrid <-> some form of small connector.</p> Task #1086 (Invalid): Design debug boardhttps://roboticsclub.org/redmine/issues/10862010-02-07T02:16:58ZKevin Woo
<ul>
<li>Dual usb (1 debug uart, 1 for avr)</li>
<li>some form of tiny with a uart and an spi</li>
</ul> Task #997 (Wontfix): Spec out microphonehttps://roboticsclub.org/redmine/issues/9972010-01-14T02:51:29ZRich HongTask #978 (Assigned): System Wiringhttps://roboticsclub.org/redmine/issues/9782010-01-12T22:04:02ZDan Shopedshope@andrew.cmu.edu
<p>Formalize lengths, gauges, and organization of wiring for sensors and actuators. Signals should be transferred on the FFC (<a class="issue tracker-5 status-7 priority-4 priority-default closed" title="Task: Scoutfly Connectors (Fixed)" href="https://roboticsclub.org/redmine/issues/976">#976</a>), large power (>5V or > 10's mA) on separate lines.</p> Task #975 (Wontfix): Hood Buttonshttps://roboticsclub.org/redmine/issues/9752010-01-12T10:34:34ZDan Shopedshope@andrew.cmu.edu
<p>Once dev board layout is finalized (for dev), design buttons and determine placement on hood piece.</p>
<p>Buttons may be 3D printed and manually cast with Freeman Repro Urethane or similar product.<br /><a class="external" href="http://www.miapoxy.com/c-4-urethane-casting-resins.aspx">http://www.miapoxy.com/c-4-urethane-casting-resins.aspx</a></p> Task #974 (Fixed): Accessory Ball Bearinghttps://roboticsclub.org/redmine/issues/9742010-01-12T10:32:16ZDan Shopedshope@andrew.cmu.edu
<p>Add block for ball bearing and choose part<br />Recommend 0.250" ID, plain vanilla ball bearing (read: cheap) or use simple journal bearing</p> Task #844 (Wontfix): Bootloaderhttps://roboticsclub.org/redmine/issues/8442009-10-29T23:49:28ZDan Shopedshope@andrew.cmu.edu
1) Bootloader
<ul>
<li>can we boot on an ARM</li>
<li>how small can we get it</li>
<li>Can we do it on the 256K SRAM onboard?</li>
</ul>