Locate the microcontroller. This component is polarized, which means we need to take extra care to place it in the
board properly. Notice the notch on the image below.
Looking at the bottom of the board, insert the microcontroller . Make sure that the notch on the chip aligns with
the white silkscreen on the board. To avoid having it inserted backwards, we cut off a pin.
Flip the board over and solder all of the microcontroller's pins to the board.
Note: The microcontroller is the brain of the game. It's programmed to light up the buttons and create the
game sequence. Bending the legs won't hurt the chip. It is designed to withstand the heat of the soldering
iron as well as gentle bending.
Buzzer
Polarized
Component
Pay special attention to the component’s markings indicating how to place it on the PCB.
Polarized components can only be connected to a circuit in one direction.
Locate the piezo buzzer.
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