Grove - Water Atomization

Grove - Water Atomization is fine Grove module for you to develop an atomizer or an atomizer module in your applications easily. With a few simple steps, you can prototype an atomizer. It has grove interface which make it easily applied to plenty of applications. A humidifier is a basic application it can be built with, you can develop more advanced and interesting objects with digital scent technology and any other situation in which atomization required.

Features

Heated with ultrasound.
Easy to prototype a new application.
Well applied to vast applications.
For various interesting, smart and fashionable applications.

Application ideas

Humidifier.
Scent emitter in different situations.
For smart-house applications.
For smart objects on consumer electronic products.

Specification

Operating voltage	5.0V(DC)
ripple(at Max power)	≤100 mV
Max power	2W
peak output voltage	65±5V
Operating frequency	105±5kHz
Chip	ETA1617、NE555

Hardware Overview

Grove interface: Connect main control board such as Seeeduino board with driver board.
Transducer interface: Connect ultrasonic transducer to with driver board.
Grove wire: Connect main control board with driver board.

Parts list

Parts name	Quantity
Driver board	1PCS
Grove wire	1PCS
Ultrasonic transducer plate	1PCS

Get started

Material required

Seeeduino * 1

Grove - Base shield v2

Grove - Wire * 1

Preparations

Refer to following guides to build an appropriate IDE:

Note that we have chosen Seeeduino in this case.

Getting Started on Windows

Getting Started on Mac OS X

Hardware connections

A little demo

Note We also need a Grove touch sensor in this demo and also connect it to A5(Use as digital pin).

1. Copy code below to Arduino IDE editor.

/*
  Demo code for grove  atomization.
  Touch to start atomizing.
  Last modified by he
by xiaohe
 */
// 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
  pinMode(5, INPUT); // Use digital pin 5 as output port
}
 
// the loop function runs over and over again forever
void loop() {
  int D2Sig = digitalRead(5);// read pin 5 signal
  if (D2Sig == 1)
  {
    /* code */
    digitalWrite(A5, HIGH);   // atomize
    delay(10000);              // wait for 10 seconds
    digitalWrite(A5, LOW);    // atomization stopped
 
  }
}

2. Place some tissue into a trimmed paper cup filled with water, put ultrasonic transducer onto tissue.

Note that the bottom side is the side with hollow which is supposed to face downside. Let bottom of transducer plate sink into the water and keep top side above water. The function of tissue is lead water to the transducer and keep upper side of transducer above water.

3. Upload code to main control board.

4. Now if you touch Grove touch sensor, you can see vapor produced.

Notes that do not touch transducer interface pins directly because peak output voltage of Drier board can be 65V.

Red rectangle marked area

Notes that the inductor L2 will be heated so do not touch it directly.

Resources

Schematic files in Eagle and PDF format.