/products/arduino/b/blog/posts/arduino-uno-couple-questions-before-i-buy-im-new1) I understand that the board has 14 outputs on it. I would like to use these to control a board with 14 or 16 relaysNot sure where to look for this any ideas2). I know you can download a software program to control the Uno. Can I use somethin...en-USTelligent Community 12https://community.element14.com/products/arduino/b/blog/posts/arduino-uno-couple-questions-before-i-buy-im-newWed, 12 Feb 2014 17:00:08 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:f225c719-f712-45f4-bb44-9a697b2f6caedougw0<p>Hi Rick,</p><p>There are several relay modules available that claim to work with Arduinos, such as </p><p><a class="jive-link-external-small" href="http://www.elecfreaks.com/store/16-channel-5v12v-minirelay-module-p-421.html" rel="nofollow ugc noopener" target="_blank" title="http://www.elecfreaks.com/store/16-channel-5v12v-minirelay-module-p-421.html">16 Channel 5V/12V Mini-Relay Module [BK_RL16_01] - $30.90 : ElecFreaks Store</a></p><p>To control them from Hyper Terminal would require a small program to be written for your Uno.</p><p>&nbsp;</p><p>There are also relay modules that can connect directly to USB and be controlled directly from Hyper Terminal, such as:</p><p><a class="jive-link-external-small" href="http://numato.com/16-channel-usb-relay-module" rel="nofollow ugc noopener" target="_blank" title="http://numato.com/16-channel-usb-relay-module">http://numato.com/16-channel-usb-relay-module</a></p><p><a class="jive-link-external-small" href="http://www.vctec.co.kr/web/product/numato/productdoc/usbrelay16/usbrelay16.pdf" rel="nofollow ugc noopener" target="_blank" title="http://www.vctec.co.kr/web/product/numato/productdoc/usbrelay16/usbrelay16.pdf">http://www.vctec.co.kr/web/product/numato/productdoc/usbrelay16/usbrelay16.pdf</a></p><p>&nbsp;</p><p>Doug</p><img src="https://community.element14.com/aggbug?PostID=17178&AppID=145&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/arduino/b/blog/posts/arduino-uno-couple-questions-before-i-buy-im-newMon, 10 Feb 2014 14:12:40 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:f225c719-f712-45f4-bb44-9a697b2f6caegadget.iom0<p>If you are getting started with Arduino then I would suggest you take a look at the <a class="jive-link-external-small" href="http://playground.arduino.cc/" rel="nofollow ugc noopener" target="_blank">Arduino Playground</a>.</p><p>&nbsp;</p><p>There is a relay specific article there: <a class="jive-link-external-small" href="http://playground.arduino.cc/uploads/Learning/relays.pdf" rel="nofollow ugc noopener" target="_blank">playground.arduino.cc/uploads/Learning/<strong>relays</strong>.pdf</a></p><img src="https://community.element14.com/aggbug?PostID=17178&AppID=145&AppType=Weblog&ContentType=0" width="1" height="1">