Zeroplus Arduino starter kit with Logic Analyzer Manual page 53

CODE EXPLANATION
• void setup(){} Configures the pins, initializes the variables,
etc. It runs once.
• pinMode(buttonPin, INPUT) A pin is either an input or an output.
• void loop(){} Write your code between the brackets. It loops
until the board is reset or powered off.
• digitalRead(buttonPin) Reads pins' value. The function returns
0 or 1. A digital read is perfect for monitoring the state of a
pushbutton.
• digitalWrite(ledPin, HIGH) Sets a pin to either a logic 0 or a
logic 1.
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