Step 10: Connect Resistors
Trim the leads of two 220 Ohm resistors to about 1/4 inch using scissors.
Solder a resistor to the end of the right-most pin of each TIP120 as pictured.
These resistors are connected to the Base of the transistors. They limit current flow between the transistors and your microcontroller to safe levels.
Solder a resistor to the end of the right-most pin of each TIP120 as pictured.
These resistors are connected to the Base of the transistors. They limit current flow between the transistors and your microcontroller to safe levels.
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