power.md updates and todo

Author: tguyenn

docs/_sections/_guide-primaries/sensors-and-actuators/power.md

@@ -7,3 +7,14 @@ nav_order: 1
 ---
 
 TODO write this
+
+
+- How do basic circuits work? (i.e. current only flows in a closed loop, what is voltage, what is ground, etc.)
+- What is a breadboard?
+  - Power rails (very important), connections
+  - include picture of breadboard with highlighted connections
+- Note that many pictures in the Robotathon guide depict sensors directly attache to the ESP32 power pin rather than to a power rail. Would be good to mention
+- Power ORring with diode how
+  - Is the single diode blocking DC input through the ESP32 good enough for power ORring? wouldnt that just damage the USB device
+ 
+- Include diagram of USBC breakout board