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--- notes:c4eng:fall2022:projects:vcc0 [2022/09/14 17:13] – [COMPONENTS] cmillica
+++ notes:c4eng:fall2022:projects:vcc0 [2022/09/14 21:14] (current) – [COMPONENTS] ilaface
@@ Line 5: / Line 5: @@
 ====RELATIONAL OPERATORS====
-^ Operator   ^ Description
+^ Operator   ^ Description                                                                                   ^ Example ^
-| ==         | Checks if the values are equal or not, If yes, condition is true                              ^
+| ==         | Checks if the values are equal or not, If yes, condition is true                              | (A == B)|
-| !=         | Checks if the values are equal or not, If values are not equal, then condition is true        |
+| !=         | Checks if the values are equal or not, If values are not equal, then condition is true        | (A != B)|
-| >          | Checks if the value of left operand is greater than the value of right operand                |
+| >          | Checks if the value of left operand is greater than the value of right operand                | (A > B) |
-| <          | Checks if the value of the left operand is less than the value of right operand               |
+| <          | Checks if the value of the left operand is less than the value of right operand               | (A < B) |
-| >=         | Checks if the value of left operand is greater than or equal to the value of the right operand|
+| >=         | Checks if the value of left operand is greater than or equal to the value of the right operand| (A >= B)|
-| <=         | Checks if the value of left operand is less than or equal to the value of the right operand   |
+| <=         | Checks if the value of left operand is less than or equal to the value of the right operand   | (A <= B)|
 ====WIRINGPI INSTALL====
@@ Line 38: / Line 38: @@
   * https://www.youtube.com/watch?v=6WReFkfrUIk
+The purpose of the breadboard is to make quick electrical connections between components- like resistors, LEDs, capacitors, etc- so that you can test your circuit before permanently soldering it together.  Breadboards have many small sockets on them, and some groups of sockets are electrically connected to each other.  On the underside of the board there are many small metal strips which physically connect certain groups of sockets together and allow electricity to flow freely between them.  These strips are probably not visible on the underside of your breadboard.
 ====COMPONENTS====
 **Breadboard**
-A breadboard consists of plastic block holding a matrix of electrical sockets of a size suitable for gripping thin connecting wire, component wires or the pins of transistors and integrated circuits. The sockets are connected inside the board, usually in rows of five sockets.
+A breadboard consists of plastic block holding a matrix of electrical sockets of a size suitable for gripping thin connecting wire, component wires or the pins of transistors and integrated circuits. The sockets are connected inside the board (by metal clips), in rows of five sockets horizontally.
 **GPIO Expansion Board**
@@ Line 114: / Line 115: @@
 Provided there are no apparent errors, close out of that terminal and open a new one, then the **gpio** tool and related WiringPi functionality should now be available.
 =====PROGRAM=====
+Declare
+ int cont = 0;
+ int num_cont = 8:
+Make sure to record wiring pi assignments into pin array. Ex:
+ pin[0] = 0
+ pin[1] = 2
+ pin[2] = 3
+ pin[3] = 4
+Remember to use if and else statements in while statement. Digital write goes after all if and else statements. Else uses LOW meaning off and if uses HIGH meaning on.

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