Arduino Uno Proto PCB Shield Rev3
- 1.0 Arduino Pinout
- 1 ICSP Connector footprint
- 2 LEDs and resistor footprint
- IOREF and GND power lines
- SPI signals pads
- 24 pin SMD footprint (50 mils pitch)
You can find your board warranty information here.
The Proto Shield bring the power from the Arduino standard IOREF and GND pins to the two power bus rows placed between the Through Hole prototyping are, which can be used for powering correctly your project independently on the chosen board (3V3 or 5V).
On the ICSP connector only 5V and GND are wired to the respective pins on the header. MOSI and MISO are present only on the connector and on the near extra pads.
For more information about the SPI communication see the SPI library.
The maximum length and width of the Proto Shield PCB are 2.7 and 2.1 inches respectively. Three screw holes allow the shield to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.