In this tutorial, I am going to show you how to make Google Assistant based scrolling LED display.that is we can change the scrolling text with the help of google assistant
So let’s start
Please watch the video till the end to get some ideas
Things needed for this
Nodemcu
8*8led matrix
Connections
CLK to D5
CS to D8
DIN to D7 and
Vcc to Vcc
GND to GND
Adafruit io setup
First, go to io.adafruit.com
Then sign up with your Google account
you will see Welcome Dashboard click on it,
then click on Create New Block
and select Text
then enter LED Matrix And click Create then select LED Matrix and click Next then Create Block.
After that go back to your dashboard and select View AIO Key and copy that key
Now open the code and paste the io key do the same for username.
Also, give SSID and password there.
After that upload Sketch to nodemcu
IFTTT AND GOOGLE ASSISTANT
First, go to ifttt.com
Sign up with your Google account (the same account that used in adafruit)
After that click on create
Then click on first + icon and search Google Assistant and select it then click Connect select account and allow it
Then select Say a Phrase with Text Ingredient and here type
Then u need to give the trigger commands do it as you wish
“change matrix to $” so whenever you will say change matrix to and whatever will be after to(i.e in place of $ symbol), will be displayed.
You can select multiple triggers like that.
Next, select what assistant will reply.
Then select Create Trigger.
Now click on the next + icon and search Adafruit click Connect and authorize it
Then select Send Data to Adafruit IO,
select the feed name which we created earlier then click on Add Ingredient and select Text Field and hit Create Action.
That’s all about the software side
Where is the code