IoT Fountain

Story

Ever wanted to control your desktop meditation fountain via the Web? Here is a simple way to achieve that using a few components and AT&T Flow Designer.

Hardware

First we start by using the Wio Node and a Relay, also going to a screen for feedback and text. Using the Relay we can control the power supply:

Next we add an OLED screen display text information:

All put together (with tape). Thinking of using sugru to hold it all in place.

Software

Now that that hardware is all connected, its time setup the Software. We will use the Wio app by Seeed.

STEP 1: Install Android/iOS App

STEP 2: Create your Account

STEP 3: Connect Wio Node to Internet

STEP 4: Virtually interconnect modules with Wio Node and update firmware

• Here is where we add the 2 components we are using: Relay & OLED

STEP 5: Test application using APIs

For testing the API, I used PostMan. Let's test things out by using the Check Status API:

https://us.wio.seeed.io/v1/node/GroveRelayD0/onoff_status?access_token=XYZ

Now let's test out the OLED screen API:

https://us.wio.seeed.io/v1/node/GroveOLED12864I2C1/string/[row]/[col]/[str]?access_token=XYZ

Arguments in URL:

• [row]: uint8_t value, 0~7

• [col]: uint8_t value, 0~15

• [str]: char * value, the string to display

Now that we have everything connected and confirmed our API is working, it's time to move onto ATT Flow Designer. We'll use Flow Designer to create an API to control our fountain and create additional logic.

AT&T Flow Designer

We can use Flow Designer to bring the API's together.

Here we create the following new API calls:

• /wateroff - turns relay off & sends 'off' text to OLED

• /wateron - turns relay on & sends 'on' text to OLED

• /contact - sends Contact Info text to OLED

• /clear - clears the OLED

Sign up for an account: https://flow.att.io/. Install the code via the Clipboard. https://github.com/jhey/iotfountain/blob/master/attflow-fountain

Now we will create a web page that will let us interact with the new API. We can use jQuery to quickly create simple page with a few buttons. This will allow us to call our four methods; Off, On, Contact, and Clear.

https://github.com/jhey/iotfountain/blob/master/index.html

Conclusion

Now you can control your Meditation Fountain from any web browser! Turn it on from your phone, and put your own messages on the screen. Never again have to worry if you left it on after you leave the office.

Future Plans/Ideas

• Control via Alexa or other Natural Language Processing

• Show random inspirational quotes

• Show data stats; stocks, emails, notifications, meetings, etc.

• Add timers

• Many Fountains