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Product Description
The USB Mini Humidifier Mist Maker & Driver Circuit Board Kit is a versatile, high-efficiency ultrasonic atomization module designed for custom DIY humidifiers, botanical terrarium misting, medical atomizers, and micro-climate control systems. Powered by a standard 5V DC micro-USB or Type-C connection, this complete kit includes a high-frequency driver board and a fine microporous ultrasonic piezoelectric atomizing transducer plate with an integrated sealing ring.
Utilizing advanced ultrasonic cavitation at ~108 kHz, the microporous ceramic disc generates an ultrafine, cool mist water spray with minimal power consumption and whisper-quiet operation. Built-in timing control and dual-mode functionality allow easy toggling between continuous misting and periodic interval spray modes with the touch of an onboard tactile switch. Operating at low 5V safety voltages, it can be driven directly from power banks, USB phone chargers, standard 5V power adapters, or 5V digital pins on microcontroller platforms like Arduino and ESP32.
⚠️ Assembly & Operating Tip: Do not submerge the driver board in liquid. The piezoelectric atomizer plate must be positioned horizontally with the fine porous side facing upward and the absorbent cotton swab touching the lower face to supply water via capillary action. Running the piezoelectric plate dry without a moist water feed can cause thermal stress and shorten transducer lifespan.
Technical & Architectural Highlights
This complete ultrasonic atomization kit provides high-efficiency misting in an ultra-compact layout:
Complete Plug-and-Play Kit: Includes high-frequency 5V driver circuit board, ceramic piezoelectric mist plate, and rubber sealing gasket.
Low 5V DC USB Powering: Operates safely from standard 5V USB supplies, power banks, computer ports, or regulated 5V power rails.
Dual Spray Modes: Built-in tactile button supports continuous spraying mode, timer-controlled interval mode, and automatic shutoff.
Ultrafine Microporous Mist: Creates a soft, cool water fog without heating, protecting sensitive electronic environments and plants
Control Modes & Interface Summary
| Button Action / State | Driver Module Function | Indication / Status |
| 1st Single Press | Continuous Mist Spraying | Power LED Solid ON |
| 2nd Single Press | Periodic Interval Spraying (e.g., 5s ON / 5s OFF) | Power LED Flashing |
| 3rd Single Press | Power OFF / Standby Mode | Power LED OFF |
| Auto Shutoff Timer | Integrated Safety Timer (Typically 4 to 8 Hours) | Automatically stops dry burning |
Applications
DIY Micro Humidifiers: Building custom desk humidifiers, car aroma diffusers, and decorative water features.
Botanical Terrariums & Greenhouses: Precise humidity control for orchids, exotic plants, and reptile enclosures.
Smart Home & Agriculture IoT: Interfacing with Arduino or ESP32 and DHT22 sensors for automated humidity regulation.
Inhalation & Medical Prototyping: Experimental atomization nodes and cool-mist vapor generation setups.
Technical Specifications
| Parameter | Value / Specification |
| Kit Component Type | Ultrasonic Piezoelectric Atomizer + Driver PCB |
| Operating Voltage | 5V DC (Micro-USB / Type-C or Direct Solder Pads) |
| Operating Current | 200 mA – 300 mA |
| Rated Power | 1.5W – 2.0W |
| Resonant Frequency | 108 kHz (+/- 5 kHz) |
| Transducer Plate Diameter | 16 mm (120 mm to 200 mm with cable/gasket) |
| Spray Rate | 35 ml/h – 50 ml/h |
| Operating Modes | Continuous Spray / Interval Spray / Auto Shutoff |
What’s in the Box
1 x 5V DC Ultrasonic Mist Maker Driver Board.
1 x 108kHz Microporous Piezoelectric Atomizer Plate with Cable & Connector.
1 x Rubber Sealing Ring Gasket.
Everything you need for your next project is now available with guaranteed quality and fast shipping across Egypt.. Order now from Pro Tronix!
