Changes between Version 20 and Version 21 of ControlSystems/Electrical/Training/Arduino/Lesson2

Timestamp:

Jun 13, 2016, 9:51:24 PM (9 years ago)

Author:

David Albert

Comment:

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ControlSystems/Electrical/Training/Arduino/Lesson2

@@ -26 +26 @@
        * FIRST bots use sealed [https://en.wikipedia.org/wiki/Lead%E2%80%93acid_battery lead-acid] batteries (1800s technology!)
        * Mini-bots use primary alkaline batteries (developed 1899-1901)
-       * See [https://www.youtube.com/watch?v=Tpb-n22Y-sY why we are not using lithium batteries]  (new school)
+       * See [https://www.youtube.com/watch?v=6wFPsxgm_ak why we are not using lithium batteries]  (new school)
        * Good gracious...I have one of those in my pocket!  Why do they use lithium batteries in cell phones and laptops if they are so volatile? For the same reason they are used in quad-copters and other applications where weight really matters: [http://www.allaboutbatteries.com/Battery-Energy.html Wh/kg]
    * Voltage:
@@ -37 +37 @@
        * Why it matters: motors draw a **lot** of current.
    * Capacity:
- [[Image(http://img.photobucket.com/albums/v648/Sm00th0perator/Year%20Of%20The%20Rabbit/4bbdbccc.gif, align=left)]]
+ [[Image(https://upload.wikimedia.org/wikipedia/en/e/e0/Energizer_Bunny.png, align=left, width=150, margin-right=30)]]
        * [http://www.dcbattery.com/faq.html Amp-hours] (or milli-Amp-hours)
        * [http://batteryuniversity.com/learn/article/the_battery_and_the_digital_load discharge rate matters!]