Designing the SMS Doorbell
Now that we have our cloudBit module configured, we can use it to prototype a doorbell that
sends us an SMS message when pressed. We will use the IFTTT (If This Then That) platform
first mentioned in Chapter 1 to handle the interaction between the cloudBit and the phone
that will receive the SMS message. Go to https://ifttt.com/join to create an IFTTT account if you
don’t already have one. After that, go to https://ifttt.com/littlebits to activate the littleBits chan-
nel. Activating the channel will authorize IFTTT to interact with the cloudBit using the little-
Bits network (Figure 7-12).
FIGURE 7-12. Turning on the littleBits channel on IFTTT
Now we are ready to create an IFTTT recipe that will send an SMS message to our phone
when our doorbell is pressed. Go to https://ifttt.com/myrecipes/personal/new to create a new
recipe. Click on “this” and type in little to search in the list of triggers. (Triggers are basi-
cally events that trigger a reaction; i.e., they are the “this” part of an IFTTT recipe, while an
action channel [example: SMS] is the “that” part of the recipe.) Select littleBits from the list,
and then click on “Input received,” which will make the recipe run when another input
INTRODUCING THE CLOUDBIT STARTER KIT 199