Overview

BMH01220 targets 20kg-class weighing. Four half-bridge strain gauges pair with a built-in 24-bit ADC and weighing algorithm, letting the host read weight directly over I2C or UART. It suits juicers, coffee machines, smart kettles and other products that need structured weighing capability.

Features

  • 20kg capacity, weighing accuracy down to 5g or better (structure-dependent)
  • Built-in 24-bit ADC and weighing processing, direct weight output
  • Integrated voltage regulator, wide supply input
  • I2C / UART interface with dynamic tare command

Technical Specifications

Specification Table

Capacity
20 (ultimate overload 30) kg
Weighing Accuracy
down to 5g or better (sensor/structure-dependent)
Interface
I2C / UART
Output Sensitivity
1.2 (1.05–1.35) mV/V
Non-linearity / Hysteresis / Repeatability
0.05 %F.S
Operating Voltage
2.6–5.5 V
Operating Current
1.5 typ / 2.4 max @3V mA
Standby Current
<1 (typ 1, max 3) μA
Operating Temperature
-10–60 ℃
Storage Temperature
-50–125 ℃
Dimensions (PCBA)
16×16 mm

Application Areas

Coffee machines, smart kettles, juicers, dosing/dispensing devices

Documents

BMH01220 Datasheet

BMH01220 Weighing Module Resources

Resources

BMH01220 Weighing Module Resources

Quick Start

BMH01220 Weighing Module — User Guide

BMH01220 is a weighing module from BestHealth Electronics that integrates load-cell signal conditioning, 24-bit analog-to-digital conversion, and digital filtering. Housed in a compact SOP10 (150 mil) package, it is suited for electronic platform scales, kitchen scales, body-weight scales, and similar weighing applications. The module communicates with the host via a UART interface, significantly simplifying hardware integration.

1. Directory Layout
BMH01220/
├── 1.doc/                    # Product datasheet
└── 2.測試AP/                  # Test host software
2. 1.doc — Product Datasheet
FileDescription
BMH01220_datasheet.pdfRequired reading — BMH01220 product datasheet (pin definitions, electrical specifications, UART communication protocol)
3. 2.測試AP — Test Host Software
FileDescription
BMH01220.exeWindows test application for BMH01220 functional verification and debugging
4. Quick Start Guide
  1. Read the datasheet1.doc/BMH01220_datasheet.pdf for pin definitions, electrical specifications, and UART communication protocol
  2. Software evaluation — run 2.測試AP/BMH01220.exe for functional verification
  3. Host integration — implement host-side UART communication per the protocol in the datasheet
5. Version & Contact
6. Disclaimer

The materials in this repository — including hardware schematics, PCB files, source code, and documents — are provided solely for customer reference and evaluation. Before using these materials in product design, mass production, or commercial deployment, customers are responsible for conducting full functional testing, reliability validation, and regulatory certification. BestHealth Electronics Inc. (悠健电子(东莞)有限公司) shall not be liable for any direct or indirect losses arising from the customer's use of these materials in production, sale, or operation — including but not limited to yield issues, field failures, product recalls, or end-customer claims. These materials are provided "as is" without warranty of any kind, express or implied.

7. Intellectual Property

All materials in this repository (including but not limited to hardware design files, source code, documents, trademarks, and logos) are the intellectual property of BestHealth Electronics Inc. (悠健电子(东莞)有限公司), protected by applicable laws. Customers are granted only the right to use these materials for reference and evaluation. Reverse engineering, resale, redistribution, or unauthorized public release is prohibited without prior written consent.

© 2026 BestHealth Electronics Inc. (悠健电子(东莞)有限公司) All Rights Reserved.

This README is a directory-level user guide for fast navigation. Refer to the datasheet PDF for protocol and electrical specification details.

Complete Package

BMH01220 Complete Resource Package

BMH01220 Windows Evaluation Tool

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