Reading a Circuit Schematic

Simply stated, a schematic is a map, which shows how electronic components are connected between a power source and ground.  This does not (necessarily) show where the components are placed, only how they are linked (by wires, or other conductors) together.  To be able to build circuits, you will need to know the symbols for various electronic components.  For the level 2 Blinky Bot projects, you will need to know the symbols for diodes, resistors, capacitors, transistors, batteries, and ground.  (Note that LED’s are a type of diode, as LED stands for light emitting diode.)  You also need to be careful of polarity when connecting your components.  If a component has polarity, the positive end must be connected toward the power source and the negative end must be connected toward the ground.  If a component does not have polarity, it may be connected in either direction.  There are many sources to learn about circuit schematics.  One such source is https://learn.sparkfun.com/tutorials/how-to-read-a-schematic