108kHz Ultrasonic Atomiser Kit with Cotton Wick – DIY USB-C Mist Maker for Incubation, Smart Gardening, and Desktop Humidifiers

Technical Details

• Resonant Frequency: Specifically tuned to 108kHz (+/- 3kHz) to ensure maximum atomization efficiency and low noise.

• Atomization Chip: Utilizes a high-quality piezoelectric ceramic ring with an anti-oxidation silver layer for extended operational life.

• Control IC: The driver board manages frequency oscillation and includes protection circuitry to prevent dry burning (when used with sensors).

• Mist Particle Size: Produces ultra-fine droplets ranging from 5 to 10 microns, which stay airborne longer for better humidity distribution.

• Power Efficiency: Operates at a low power rating of approximately 2W, ensuring minimal heat generation during continuous use.

• Connector Type: Features a standardized PH2.0 terminal for the ultrasonic disc, allowing for easy replacement or extension.

• Switching Logic: Includes an on-board tactile switch to toggle the spray mode (Continuous / Intermittent).

• Indicator LED: Features a status light that provides visual confirmation of the power state and oscillation mode.

• Cotton Wick Capillary: The included 8mm wick provides excellent capillary action, ensuring a constant water supply to the ceramic disc.

• Logic Compatibility: The driver circuit can be triggered by an external microcontroller (like Arduino) by interfacing with the power switch pads.

• Moisture Resistance: The driver PCB is coated to resist minor humidity, though it should be kept away from direct water contact.

• Disc Construction: The ceramic disc is mounted in a silicone gasket to prevent leaks and provide mechanical vibration isolation.

• Operating Current: Draws between 300mA and 450mA depending on the mist intensity and water supply stability.

• DIY Versatility: The modular design allows for independent mounting of the misting head away from the control electronics.

• Environmental Safety: Cool mist technology removes the risk of burns associated with traditional steam-based humidifiers.

Prototyping and Engineering Tips from Robogears

• 9V Battery Use: Do not use a 9V battery. This kit is strictly rated for 5V. If you must use a 9V source, utilize a 7805 Voltage Regulator or a buck converter to drop the voltage to exactly 5V.

• 18650 Cell: A single 18650 cell with a 5V Boost Converter (MT3608) is the best setup for a portable misting device. Ensure your boost converter can handle at least 1A peak current.

• IC & Capacitor Tip: To automate this with an Arduino for an incubator, use a 2N2222 Transistor or an Optocoupler to "press" the on-board button programmatically. Add a 220uF Electrolytic Capacitor across the 5V input to handle the oscillation current spikes.

• Related Products: We recommend pairing this with our DHT22 Humidity Sensors, Soil Moisture Sensors, and 5V Relay Modules for fully automated plant terrariums.

Package Includes

• 1 x 108kHz Ultrasonic Atomizer Driver Board (USB-C).

• 1 x 16mm Microporous Ceramic Atomizing Disc.

• 1 x Cotton Wick (100mm x 8mm).

Disclaimer Image is for illustration purpose only 2-3 lines. Do not power the module without water or a wet wick in contact with the ceramic disc, as dry operation will cause the piezoelectric element to overheat and crack.