Proto Shield Schematic

Projects General Guidance
1

I'm working on my first Auduino project and using a Proto Shield board to bring in my external devices. Before I go to far I'd like to confirm the connections on the board. I downloaded the schematic, see attached and I'm not sure what the references to Power1 and Power2 are or the -H & -L (Digital-H1, Digital-L1). I've looked at other threads in the forum but didn't find anything on this

Are the -H & -L referring to the top of the board and the -L the other side? Or is the -H (Higher Board) the shield and the -L (Lower Board) the Auduino?

I'm also sure once I get the answer it will be a "Duh" moment for me.

Thanks
John

ArduinoProtoShield_V4.0-schematic.pdf (23.1 KB)

2

There are two 'digital' connectors on the Uno; one with 8 pins and one with 10 pins. So count the pins in your schematic. On the official Arduino Uno schematic they are named IOL and IOH respectively (hint).

Power is the power connector on the Arduino (e.g. with Vin, 3.3V etc).

As you can see, all connectors that are located at the sides of the Arduino are duplicated; one of each on your shield will connect to the Arduino, the other one will allow you to stack another shield on top of your proto shield.

It's impossible to say which one is which (unless they are numbered on your physical shield). Sensible would be that all xxx1 or all xxx2 connect to the Arduino and the the other ones connect to another shield.

3

Thanks sterretje

I did see the count of the pins and how they refer to the connectors on the side, On the Digital-H1 & -H2 there are the SCL & SDA those are identified on the board. I also see that the GND-H and Power-H reference the through holes that are connected on the board. I also know that is how the board stacks on the Auduino.

Back to the Digital-H1 & -H2, why are there 2 connectors shown? Is that either side of the board?

Thanks again for your help
John

4

The one is the make connector that has the pins that go into the Arduino. The other one is the female connector that can take the male pins from another shield.

5

Excellent! Better to make sure before I go to far, like I haven't done that before.

Thanks again