Simple setup for Water Atomizer and Arduino UNO

Help & Support Robot Parts
1

Hello,
I just purchased the Grove Water Atomizer driver board and ultrasonic transducer and I am having trouble finding clear documentation on how to use it. I am using an Arduino UNO and I want it connected as simply as possible to the Atomizer. I don’t need buttons or anything like that. Could anyone please point me in the right direction? Thank you so much.

Brotch

2

Hi,

You can find all the information about the Grove - Water Atomization Module in its Wiki page.

3

Thanks for the link! I’ve followed the instructions and I’m having some issues. I have the Grove Water Atomizer plugged into the I2C port on the Grove Base Shield V2 on my Arduino Uno, as in the wiki tutorial.

I modified the code from that wiki page to read:

// the setup function runs once when you press reset or power the board void setup() {  // initialize digital pin 13 as an output.  pinMode(A5, OUTPUT);// Set A5 as OUTPUT }  // the loop function runs over and over again forever void loop() {  {  /* code */  digitalWrite(A5, HIGH); // atomize  delay(5000); // wait for 10 seconds  digitalWrite(A5, LOW); // atomization stopped  } }

so as not to require a button for testing. I plugged it in and it seemed to be working. The water was atomizing fine, although the output was not very strong.

Then I tried modifying the code and uploading again. This time I got an error that read:

avrdude: ser_open(): can’t open device “\.\COM3”: Access is denied.

I was able to fix this by unplugging the water atomizer unit from the shield and uploading. Sometimes I still get the error unless I unplug the base shield completely and upload just to the bare Arduino.

I was able to work around this problem by uploading to the Arduino by itself, then plugging the shield and atomizer in. Now the atomizer seemed to be working okay, but it’s performance began to degrade. It seems that water builds up on the top of the transducer, which causes it to no longer work. If I move it around, it spurts for a little bit every now and then. If the bottom is submerged and the top is above water like in the wiki tutorial, it produces no mist at all. I can still hear the transducer whining when activated, so it’s getting a signal of some sort. Sometimes when it’s at an angle it will produce the mist.

Can anyone please give me some ideas as to why I may be having so much trouble? Thank you so much!

4

Hello,
I was wondering if the mist maker (the round component that is responsible for actually making the mist) is included when I purchase the water atomization module.

The mist maker as well as the connecting cable is shown in one of the images on RobotShop, however the specifications never mentioned whether or not it comes with the module.

Thank you so much in advance for your help!

5

Hi,

Yes, the ultrasonic transducer and the cable are included with the Grove - Water Atomization Module

Hope this helps,