Greetings!
I'm looking for a schematic for the Arduino shield that is variously referred to as "Sensor Shield 4.0" or the "Electronic Brick". It is available from Seeedstudio, Emartee, and others, but nowhere can I find a schematic. What am I missing here?
Thanks!
What am I missing here?
The fact that they are not very well supported and probably not open source.
I know this site is trying to gather them all up but I don't know if yours is covered yet:-
http://arduino-direct.com/sunshop/
Thanks!
The best information that I could find is here:
http://www.seeedstudio.com/depot/images/product/Electronic%20Bricks%20Vol1.1.pdf
Then is there an open source equivalent? A "Sensor Shield" seems like a natural. Or are the IO pins already so easily available, that you just connect to them directly?
Or are the IO pins already so easily available, that you just connect to them directly?
Yes. 
gknight4:
Greetings!I'm looking for a schematic for the Arduino shield that is variously referred to as "Sensor Shield 4.0" or the "Electronic Brick". It is available from Seeedstudio, Emartee, and others, but nowhere can I find a schematic. What am I missing here?
Thanks!
I own that shield board. It's a passive board with no active components, just lots of extra connectors that allow various devices to hook up via either 3 pin 'buckled' connectors (for the analog input pins) or 3 pin female servo type connectors (for the digital and analog pins). As well as routing the arduino pin to the connector there is also +5vdc and ground routed to each connector to power the attached device. There is also one 4 pin buckled connector that can be jumped selected to connect the serial data pins (0 and 1) or the two I2C pins along with +5vdc and ground.
The silk screening on the board shows what arduino pin each connector is wired to. The firm I bought the shield from also sells matching connectors with wire leads if you need them, but most of the compatible brick devices also include one mating connector.
Wow ! What a great community! Thanks, all, for a little education.
On a related question, is there a similar board that would do the 3.3v to 5v logic level shifting? Or is this necessary?
gknight4:
Wow ! What a great community! Thanks, all, for a little education.On a related question, is there a similar board that would do the 3.3v to 5v logic level shifting? Or is this necessary?
Not aware of a general purpose shield board that has level translators installed, but there are small voltage translator modules avalible: http://www.sparkfun.com/products/8745
If you need them depends on the 3.3v device you are using, some are "5 volt tolerant" and some are not. You have to do the research on specific devices. And of course you can use arduino boards that work at only the +3.3volt level (http://www.sparkfun.com/products/9220) so that level translation would not be required to interface with 3.3v devices.
Lefty
I hadn't noticed that SparkFun had a level shifter. Thanks!