groupworkWeek11

docs/assignments/week11.md

@@ -7,6 +7,8 @@
 
 <iframe src="https://player.vimeo.com/video/328950305" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe><p><a href="https://vimeo.com/328950305">Fab Academy Inputs Week11</a> from <a href="https://vimeo.com/user17547355">Ant&oacute;nio</a> on <a href="https://vimeo.com">Vimeo</a>.</p>
 
+<iframe src="https://player.vimeo.com/video/345972233" width="640" height="358" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe>
+
 !!! summary
     This time I did want to start doing sommething more close to the electronics final job for the unmanned boat, directly related to the **boat security** as shown in the video. So I decided, after discussing it with the tutors to find interesting to develop a very simple PCB with a **conductivity wire** switch.
 
@@ -29,7 +31,7 @@
 
     After **reviewing** Neil lecture for this week I can see same interesting sensors to test, not on this week, but in the comming weeks and years. I did make the schematics based on Neil examples for the **step response** and did the PCB's.
 
-    About the group assignement, I did same measures with the oscilloscope but didn' go further nor documented it as a group.
+    About the group assignement, I did same measures with the oscilloscope but didn' go further nor documented it as a group in that week. Manage to complete it now.
 
     All the EAGLE files can be found [here](https://drive.google.com/open?id=1Z9piwM9xCbg6XFwhQNHIXudWf7W6QhBY).
 
@@ -262,3 +264,14 @@ See this forum to have a complete discussion about this in the optimization topc
         avoid dynamic allocation if it is not absolutely necessary; you will avoid a fragmented heap that may not shrink even after freeing memory
 
 An additional approach to reduce SRAM usage is also described (but seldom used, because it is a bit heavy when coding and not very efficient), it consists in using EEPROM to store data built by your program, but not used until later when some conditions occur, when data can be loaded back from EEPROM.*
+
+# Work group
+
+We atached two jumpers to GND and pin 13 as can be showed here and upload a program to the arduno board available at the examples in the IDE:
+
+![](../images/week11/ArduinoOsciloscopio.jpg)
+
+And found out that that voltage and the signal frequency was accordingly with this simple program:
+
+
+<iframe src="https://player.vimeo.com/video/345972233" width="640" height="358" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe>