Arduino Uno R3 Prototype Shield

This prototyping shield is the best for testing a project. It works with UNO, NG, Diecimila and Duemilanove Arduinos.

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Description: Arduino Uno R3 Proto Shield

The ProtoShield mates with the Arduino UNO, Due, or Mega 2560 board and gives the user a small soldering area, two general LEDs, a general pushbutton switch, and most important of all – the Arduino reset switch is brought to the top level.

  • 1 reset button, 1 general use button, and 2 LED circuits can be used directly.
  • Prototype size: About 2.72*2.09*0.71″ (69*53*18mm)
  • Mini breadboard size: About 1.85*1.38*0.35″ (47*35*9mm)
  • All of the pins and the power leads are very fit and build circuit prototyping with Ardui-no.
  • Arduino protoshield prototype with 170 mini breadboard


The board is hardware compatible with the Arduino Uno, Mega 2560 and the Due. However, be aware that the Arduino Due’s signals require a 3.3 VDC level. Applying 5 VDC to an input may cause damage to the board’s components.

While the board extends the Arduino’s control signals such as digital and analog I/O, it also provides two LEDs and one push-button. They are, per default, not assigned to a specific digital input or output. The following shows the simple schematics:

Arduino Protoshield Kit - Schematic

Please be aware that the resistor R4 is not part of the delivery; this must be added by you.

The LEDs and the push-button can be wired showing the connections as shown here:

arduino protoshield leds button


  • It has a nice standard 0.1″x0.1″ prototying grid with big pads
  • A IC pattern for adding DIP ICs up to 20 pins
  • Power rails down the middle and sides
  • A reset button and an extra general use button
  • 2 3mm general use LEDs, red and green, as well as 2 matching resistors
  • The ICSP header is up top if you like to upload to your Arduino using a programmer
  • A surface-mount chip area for up to 14 SOIC size parts
  • Compatible with either tiny breadboards or ‘standard’ breadboards with the rails removed.
  • Every pin is brought out, including the new 3V and Reset header pins
  • 2 0.1uF capacitors on either side for extra power stability


  • Color: Blue black white
  • Prototype size: 6.8 * 5.4 * 2cm (2.67in * 2.12in * 0.78in)
  • Mini breadboard size: 4.7 * 3.5 * 0.9cm (1.85in * 1.37in * 0.35in)
  • Weight: 31g(1.09oz)

Arduino ProtoShield Programming Sample:

In the following sketch we have assigned LED1 to pin 13, LED2 to pin 12, and the push-button to pin 11. The program lets LED1 blink, while LED2 is controlled by the push-button. Please be aware that the push-button, when pressed, delivers a low signal (see also the schematic). Also, make sure you add the 10 kOhm resistor, which is not part of the delivery.

Click here to download the programming sample…

Important! For the Arduino Uno and Mega 2560 provide 5 VDC to the resistor R4. For the Arduino Due provide 3.3 VDC. Both levels are available on the ProtoShield board.

Arduino ProtoShield Resources:

Package Include:

1 x Arduino Uno R3 Proto Shield
























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