Smart Toilet Heated Seat Control Module - IoT Electronic Mainboard PCBA Assembly

SZH's smart toilet control board PCBA is designed for premium electronic bidets, integrating seat heating, energy-saving algorithms, and multi-layer safety protection for enhanced user experience. With over 10 years of expertise, we provide ODM/OEM solutions for global brands, leveraging advanced R&D in precision molds and vertically integrated supply chains for fast delivery and cost efficiency. Annual production capacity exceeds 2 million units, SZH provide flexible customization, empowering clients to lead the smart bathroom market.

  • SZH
  • China
  • Information

1. Product Overview

    This simplified yet feature-rich control mainboard is designed for mid-range smart toilets, integrating several essential smart functions while maintaining cost efficiency. Compliant with GB4706.1-2024 safety standards and RoHS/REACH environmental requirements, it uses UL94 V-0 flame-retardant PCB with IPX5 waterproof protection.

Key Value Proposition:
Smart Convenience - Auto lid/sensor flush/hands-free operation
Comfort Enhancement - 4-stage seat temperature adjustment
Energy Efficient - Only 28W max power consumption
Easy Integration - Standard 120mm×80mm compact design

Core Functions:

  • Auto lid/seat opening (IR sensor triggered)

  • 4-level seat heating (35°C/38°C/41°C)

  • Foot-sensing flush (capacitive sensor)

  • Soft night light (3000K warm white LED)


2. Technical Specifications

2.1 Electrical Parameters

ParameterSpecification
Input VoltageAC 110-240V (50/60Hz auto adapt)
Max Power28W (all functions active)
Standby Consumption<0.5W (ECO mode)

2.2 Component Specifications

ModuleDetail
Heating SystemPTC ceramic heater (60W max)
SensorsCapacitive foot sensor (5-15mm detection)
LED Lighting2x 2835 SMD LEDs (3-lumen output)

2.3 Physical & Environmental

  • Dimensions: 105×83×30mm (with mounting bracket)

  • Waterproof: IPX5 (conformal coating on PCB)

  • Operating Temp.: -10°C to +55°C

  • Relative Humidity: ≤95% RH (non-condensing)


3. Functional Details

3.1 Smart Features

FunctionOperation Logic
Auto LidIR detection (30-50cm range)
Foot Flush1s foot hover detection
Seat HeatingMemory last used temperature
Night LightAuto ON between 20:00-6:00

3.2 Protection Mechanisms

  • Double ESD Protection (8kV contact discharge)

  • Overheat Protection (seat >45°C auto cutoff)

  • Short-circuit Protection (all output channels)


4. Compliance & Certifications

  • Safety: GB4706.1-2024 + GB4706.53-2024

  • EMC: EN 55032 Class B

  • Waterproof: IPX4 certified

  • Material: RoHS 2.0 & REACH SVHC compliant



Smart Toilet Heated Seat Control Module - IoT Electronic Mainboard PCBA Assembly

Heated Seat Control Circuit

Modular Function Design

Core Functions (Rapid Integration)

Heating

Cleaning

Control

 Hygiene  

Seat heat

Bidet wash

Power-off flush

Nozzle clean

Dry heat

Feminine wash

Foot-sense flush

Foam shield

Temp adjust

Massage spray

Auto flush  

 

Advanced Customization

- Electronic Extensions:  

  IoT Control: APP/Wireless remote  

  HMI: Smart display + Voice feedback  

  Health: urinalysis (interface reserved)  

- Mechanical Synergy:  

  Auto-lid motor drive optimization  

  Precision foam generator control  

End-to-End Development

 Vertical Manufacturing Advantage:  

  Mold R&D: fast structural development (solves deformation/leaks)  

  Electro-mechanical integration: Unified PCBA & heating module design  

  Pilot to mass production: in-house SMT+assembly to ensure fast production

Competitive Benchmarking

Traditional Development Pain Points

Our Solutions

Technical Support

slow development due to excessive feature integration

Modular design + pre-reserved interfaces

patent portfolio

Electro-mechanical design misalignment

Parallel electro-mechanical co-development

In-house mold center + SMT production lines

Lengthy certification cycles

Pre-validated architecture (50% test time reduction)

10-year ODM empirical database 


Transform your smart toilet concept into a market-ready product. Welcome to contact with us today for a personalized proposal with functional prototypes, BOM optimization analysis, and turnkey delivery schedule.


Get the latest price? We'll respond as soon as possible(within 12 hours)
This field is required
This field is required
Required and valid email address
This field is required
This field is required
For a better browsing experience, we recommend that you use Chrome, Firefox, Safari and Edge browsers.