Arduino 101

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Intro to Arduino

Digital inputs/outputs

• Digital values can only be 0 or 1 ( high or low)
• From D0 to D13.
• You can use these pins to connect either inputs or outputs. You just have to configure them in the setup function.

Digital inputs/outputs (SVG pins)

• Digital values can only be 0 or 1 ( high or low)
• From D0 to D13.
• This yellow pins (S line) are the same as digital pins above.
• Red line (V) are all connected to VCC (either 5V or 3,3V).
• Black line (G) are all connected to GND.

USB connection

• To connect with your computer in order to transfer the programs.

Voltage selector

• It allows you to select the tension that arduino will use for all VCC outputs.
• We normally work with 5V.

DC input voltage

• We normally power the arduino board through this connection.
• Tipically a 7V-12V is used.
• Example: 6 AA batteries in series make 9V

Reset button

• It is used to reset the program.
• Program will restart from the beginning runing once the setup function and then jumping to loop function.

Analog inputs/outputs

• Analog values go from 0 (0V) to 1024 (5V)
• From A0 to A5.
• You can use these pins to connect either inputs or outputs. You just have to configure them in the setup function.

Analog inputs/outputs (SVG) pins

• Analog values go from 0 (0V) to 1024 (5V)
• From A0 to A5.
• These yellow pins (S line) are the same as analog pins below.
• Red line (V) are all connected to VCC (either 5v or 3,3v).
• Black line (G) are all connected to GND.

Leds

• Power led: indicates that the board is on
• D13 led: Buit-in led
• Tx/Rx leds: indicate the transmission and reception of data