Breadboard can be used by first preparing the experimental equipment, put the battery inside the battery holder, LED inserted into the two grids after the line connected to the LED two sections can be used.

Tools / raw materials: Lenovo LAPTOP-75II97PN, Windows 10, breadboard EC, breadboard wire, a number of electronic components.

1, prepare the experimental equipment.

Breadboard a piece, a number of connecting wires (connecting wires to use both ends of the needle-shaped line), led light a 3V button battery.

2, insert the battery.

Put the battery inside the battery holder (this kind of battery holder can be bought online), for inserting into the breadboard, finished, insert the battery into the breadboard at the left and right parts.

3, LED inserted into the two grids.

Separately from the positive and negative poles of the battery lead to two lines, the LED inserted into the breadboard any non-conducting two grids (led long foot for positive, short foot for negative).

4, line to the LED two sections.

The positive and negative poles from the battery lead to the LED two sections of the line can be. (Positive to positive, negative to negative).