How to use it
An overview of functionality.

Pin Assignments

Analog I/O:
Analog 0 - CCD Light Sensor (CDS1)
Analog 1 - Accessory Terminal Block 1 (TA1)
Analog 2 - Accessory Terminal Block 2 (TA2)
Analog 3 - Onboard Accessories Socket 1 (Temperature sensor on external board J9)
Analog 4 - Onboard Accessories Socket 1 (Humidity sensor on external board J9)
Analog 5 - Onboard Accessories Socket 2 (Sound J10)

Digital I/O:
Digital 0 - Not used
Digital 1 - Serial Terminal (TS1)
Digital 2 - Onboard Switch (SW1)
Digital 3 - Onboard Peizo Speaker (SP1)
Digital 4 - LED 1 (LED 1)
Digital 5 - LED 2 (LED 2)
Digital 6 - Accessory Terminal Block 1 (DA1)
Digital 7 - Accessory Terminal Block 2 (DA2)
Digital 8 - Accessory Terminal Block 3 (DA3)
Digital 9 - Accessory Terminal Block 4 (DA4)
Digital 10 - Reserved For Additional Shield (Ethernet shield pins correspond)
Digital 11 - Reserved For Additional Shield (Ethernet shield pins correspond)
Digital 12 - Reserved For Additional Shield (Ethernet shield pins correspond)
Digital 13 - Reserved For Additional Shield (Ethernet shield pins correspond)

Headers

CWe have provided 6 headers that can be used for expanding the capabilities of the sprout board to add additional sensors, input devices or control external devices. On the left side we have 2 analog terminals and on the right we have 4 Digital terminals. These terminals all have a set of three sockets that all use the same configuration of 5V+ on the left, I/O in the center and Ground on the right. In addition the two analog ports can simply be configured as digital I/O as needed with the arduino pinmode.

Jumpers

We have added these jumpers to our board to allow for very flexible connection of additional circuits through the accessory terminals. This configuration allows for you to setup a 2 wire button for input, have the option of both 5v and GND on an external device, or even ground your floating analog pins for more constant signals.

For example:
On an analog terminal you may want to use an LDR that has 2 pin. to do this you will need to close the jumper for the terminal you want to use and then simply use the 5V and I/O port for a simple connection. However you may also want to use a Pot in the second terminal. In this case you simply connect the center post on the pot to the I/O socket and the corresponding posts to their respective 5v and GND sockets.

In any event we note the red rings in the picture so you know the pin pairs for the jumpers.

Serial Header

We have added a serial header on this board to allow you to connect a LCD screen with ease. As you can see in the picture here we have our 3 terminal block mounted at the end of the board. From left to right we have 5V+, TX, Ground. If you choose to use a spark fun Serial LCD display this allows for the simplest and most user friendly addition you could ever want.

Test App

We have added this simple test app to help insure your board is running right. If you connect a serial LCD or use the serial listener in your arduino dev app you will see the status of devices as it cycles through. This app is not meant to be developed against as its rather... dumb. But it's here to help if you need it to. We have configured the analog terminals as inputs and the digital terminals as outputs (connect an led and resistor).

Check our our projects you can load up on your sprout board.