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USB Aroma Humidifier Smart Control Board

This USB aromatherapy humidifier control board is a highly integrated intelligent drive system designed specifically for modern desktop, in-vehicle, and personal health scenarios. As the core controller of the device, it integrates ultrasonic atomization, intelligent aromatherapy, multi-mode control, and energy-saving management into a single miniature PCB board. Through advanced MCU main control and precision analog circuitry, it achieves efficient and stable operation under 5V USB power supply.

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Core Features: Smart Control

▶ 1. Intelligent atomization and aromatherapy control

  • Adaptive Ultrasonic Drive: Employing resonant frequency automatic tracking technology, it matches different water qualities and atomizing plate states in real time, ensuring fine and uniform atomization with no white powder residue.
  • Independent Aromatherapy Channel: PWM control of essential oils. Runs synchronously or independently with 10 adjustable levels (supports oils, water-soluble aromas, antibacterial solutions).
  • Dual Operation Control: Onboard capacitive touch + IR remote + Wireless App control for sensitive interaction.

▶ 2. Quiet Energy-Saving & Safety Protection

  • Noise Optimization Design: Ultrasonic frequency optimized to avoid human hearing sensitivity. System noise ≤25dB.
  • Multi-Level Electrical Protection: Short-circuit, over-current, low-voltage lockout, dry-burn protection, and temperature monitoring.
  • Smart Timer & Sleep Mode: 1–12 hour timer. Sleep mode lowers mist and turns off lights (<0.3W standby).

▶ 3. Smart Interconnection & User Experience

  • USB-C & Wireless Charging Ready: Supports USB-C PD (5V/2A). Optional Qi wireless charging receiver module.
  • Ambient Light & Sensing: Photosensor adjusts RGB LED strips (16.7M colors) based on room brightness. Breathing/Gradient/Static modes.
  • App & Voice Integration: Wi-Fi/Bluetooth connection. Supports Amazon Alexa / Google Assistant.

Product & Application Images

Smart dual-mode Ultrasonic Atomization Driver PCB with auto resonance tracking technology
Wireless App remote control interface for smart aroma diffuser supporting Amazon Alexa and Google Assistant

Technical Specifications

Electrical Parameters

Input Voltage DC 5V/1A (Standard USB), Expandable to 5V-12V/2A
Rated Power Atomization Mode ≤ 10W; Aromatherapy Mode ≤ 3W
Standby Power < 0.3W
Ultrasonic Freq 1.7MHz – 2.4MHz (Automatic Resonance Tracking)
Mist Particle Size ≤ 3.5μm (D90)

Control & Interface Characteristics

Main Controller ARM Cortex-M0+ Series, 48MHz, Floating Point Unit
Atomization Output 1 Channel, PWM Tuned, Max Drive Current 800mA
Aroma Control 1 Independent PWM Channel, 10 Adjustable Levels
Sensors Water Level (Capacitive), Ambient Light, Temperature Monitoring
Connectivity UART x1 (Wi-Fi/BT), I²C x1, Infrared Receiver
Display/Light RGB LED Driver, Max Output 12V/1A

Physical & Environmental Specs

PCB Dimensions 45mm x 35mm x 1.6mm (Customizable)
Operating Temp -10°C to 60°C
Storage Temp -20°C to 85°C
Humidity 10% – 90% RH (Non-condensing)
Protection Level IPX3 (Splash-proof, Optional Conformal Coating)

Certifications & Compatibility

  • ▶ Safety Standards: Compliant with FCC Part 15, CE, RoHS, REACH SVHC
  • ▶ USB Compliance: Compatible with USB-BC 1.2 and USB PD 3.0 (Optional)
  • ▶ Wireless Certification: Pre-certified for FCC/CE-RED (Wi-Fi/Bluetooth Modules)
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Product Tags USB Ultrasonic Aroma Diffuser Control PCB          Smart Mini Humidifier Control Module          Dual Mode Humidifier Aroma Control Board          Low Noise Ultrasonic Mist Maker PCB          Custom USB Ultrasonic Humidifier PCBA Manufacturer          Ceramic Disc Atomization Module         

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