Ultrasonic Mist Maker Driver Board for Mini Humidifier

The Ultrasonic Mist Maker Driver Board provides the high-frequency drive signal required by a compatible piezoelectric atomizing disc. The disc converts water into a fine, cool mist without using a heating element.

Its compact size makes the board suitable for mini humidifiers, decorative mist systems, and custom electronics projects. In addition, makers can use it to repair a compatible humidifier or build a small mist-generation system.

Key Features

• Driver PCB for ultrasonic atomizing discs
• Generates a stable high-frequency drive signal
• Suitable for compatible mini humidifiers
• Compact and lightweight circuit board
• Easy to integrate into custom projects
• Low-power electronic operation
• Suitable for repairs and prototyping
• Works without a water-heating element
• Simple connections for power and atomizer output
• Supplied as one driver circuit board

Technical Specifications

• Product Type: Ultrasonic humidifier driver PCB
• Function: Drives a compatible piezoelectric atomizer
• Application: Water mist generation
• Heating Method: No heating element required
• Installation: Internal PCB integration
• Quantity: 1 piece
• Input Voltage: Check the board marking before connection
• Atomizer Frequency: Must match the connected ceramic disc
• Dimensions: Depend on the supplied production version

How the Mist Driver Works

The driver circuit generates a high-frequency electrical signal. It sends this signal to a compatible piezoelectric ceramic disc.

As a result, the disc vibrates rapidly and breaks water into tiny droplets. A fan or air channel can then move the mist outside the humidifier enclosure.

Applications

This driver board suits a range of compact mist projects, including:

• Mini desktop humidifiers
• USB humidifier repairs
• DIY mist-generation systems
• Decorative water-mist projects
• Smart-home humidity projects
• Electronics demonstrations
• Educational science projects
• Compatible aroma diffuser repairs

Compatibility Requirements

This board does not work with every atomizing disc. Before connecting it, check the following:

• Required input voltage
• Atomizer disc operating frequency
• Disc diameter and connector type
• Wire arrangement and polarity
• Power-supply current rating
• Water-level or dry-run protection requirements

Matching only the disc diameter does not guarantee compatibility. The electrical frequency must also match the driver circuit.

Installation and Safety Notes

Disconnect the power before connecting or replacing the atomizing disc. Also, keep the exposed circuit board away from water, mist, and condensation.

Never operate the module at an unknown voltage. Incorrect voltage may damage the board or atomizer.

Furthermore, avoid running the ceramic disc dry unless the complete system provides dry-run protection. Continuous dry operation may shorten the disc’s service life.

Use clean water whenever possible. Oils, perfumes, and other additives may damage or block some atomizing discs unless the complete humidifier supports them.

Package Includes

• 1 × Ultrasonic Mist Maker Driver Circuit Board

Note: Power supply, atomizing disc, fan, wick, water container, and enclosure are not included unless shown as included in the product images.