Custom-developed for body weight scales and personal health scales, this PCBA adopts high-precision pressure sensor acquisition solution and integrates weight sampling, data calculation, display output, charging management and low-power control. It delivers accurate weighing, stable readings and long battery life for smart household scales, health scales and gift scales, with customized development and mass SMT production available.

I. Solution Overview

Specially designed for domestic weight and health scales, the control PCBA features high-precision pressure sensing circuitry to realize weight detection, data computation, screen output and power management. Optimized for accurate measurement, stable reading and extended endurance, it matches household smart scales and promotional gift scales and supports tailor-made design and bulk SMT assembly.

II. Core Functions

1. High-precision Weight DetectionCompatible with Wheatstone bridge pressure sensors. Optimized digital filtering suppresses interference from ground unevenness and vibration to achieve fast zero reset and accurate measurement conforming to household weighing standards.
2. Display & InteractionLCD or LED digital display for weight readout; unit switching among KG, Jin and LB. Optional expandable functions: BMI calculation, ambient temperature reading and multi-user data memory.
3. Power Supply & Low-power ControlWorks with dry batteries or 3.7V lithium battery with Type‑C charging port. Auto standby & wake-up design with ultra-low quiescent current for outstanding continuous service life.
4. Safety Protection MechanismOverload reminder, low-battery alarm and short-circuit protection; built-in power-on self-test and automatic zero calibration.
5. Optional Extended FeaturesBLE Bluetooth for mobile APP sync, body fat measurement, temperature detection, voice broadcast, auto power-off and anti-slip calibration algorithm.

III. Core Advantages

• Proven stable circuitry with strong anti-interference capability and reliable weighing precision;
• Compact PCB layout fits ultra-thin scale housing structure with controllable production cost;
• Optimized low-power design significantly prolongs working duration;
• Flexible customization on functions, button logic and weight unit configuration;
• One-stop service covering schematic design, SMT processing, firmware flashing, testing and mass delivery.

IV. Application Scenarios

Household weight scales, personal health scales, body fat analyzers, promotional gift electronic scales and portable dormitory weighing scales.

V. Supporting Services

Hardware circuit design, firmware development, SMT assembly, function debugging, mass production and ongoing technical support