Datasheet

You can set or clear LEDs with trellis.setLED(

) and trellis.clrLED(

) where n is the LED # from 0 to (number of

Trellis')*16-1. So if you have 4 Trellis's in a set, thats 0 to 63

You can only turn LEDs on or off, there is no grayscale or PWM on this chip

When you are done setting and clearing LEDs you must call writeDisplay() to send the data to all the boards:

trellis.writeDisplay() will write all Trellis PCBs in the set at once

You can also test if an LED is lit with trellis.isLED(

) - will return true if the LED is lit, and false if it isn't

Reading Switches

You can read buttons by calling

trellis.readSwitches()

It will return true if there has been any change in switches since the last time you called readSwitches(). So if some

buttons were pressed and now aren't or vice versa, it will return true. If nothing's changed, it will return false

Once you've read the switches, you can query the TrellisSet about them.

If you'd like to know if a key #k (k is 0..(number of Trellis')*16-1) is currently pressed, call

isKeyPressed(

)

If you want to know if there was a

change

in the button, you can ask if it's been pressed or released since the last call

to readSwitches()

trellis.justReleased(

)

trellis.justPressed(

)

Adding support for more tiles

You can tile up to 8 Trellis PCBs together (see the next page for the mechanical connections of doing so)

Make sure each Trellis has a unique address ID!

Open up the TrellisTest sketch and change the following

Make more objects

After

Adafruit_Trellis matrix0 = Adafruit_Trellis();

add as many matrices as you like, each with a unique name, e.g.

Adafruit_Trellis matrix1 = Adafruit_Trellis();

Adafruit_Trellis matrix2 = Adafruit_Trellis();

etc...

Make a bigger set

Next we will make a set of matrices. Instead of

Adafruit_TrellisSet trellis = Adafruit_TrellisSet(&matrix0);