SJ101M Weighing Transmitter Specification

Model: SJ101M  | Category: Embedded weighing transmitter

The SJ101M Weighing Transmitter is a high-precision, miniaturized signal conversion module specifically designed for space-constrained and embedded applications. Featuring an ultra-compact PCB package, it supports TTL/RS232/USB interfaces and is controlled via a simple AT command set for data reading. This module can be easily integrated into PCB circuits, Android motherboards, microcontroller systems, and various industrial terminal devices, making it an ideal core component for implementing intelligent weighing functions.

Core Advantages: Ultra-small PCB package for easy embedded integration; Flexible interfaces supporting TTL/RS232/USB; AT command control for simplified development; Built-in 9 weight formats for strong compatibility.

Technical Specifications

Structure & Features

• Compact PCB package, saving internal device space

• Supports TTL level or RS232 serial port, flexibly adapts to microcontrollers and industrial terminals

• Real-time weight data reading via AT command set (e.g., AT+WEI), low development threshold

• Built-in 9 weight formats, switchable by command, reducing software parsing complexity

• Seamless integration with ERP, MES systems, supports data transparent transmission and customization

Core Parameters

Interface Specifications

Communication Interfaces:

TTL RS232 USB

Sensor Wiring Definition

• E+: Excitation voltage positive (3.3V)

• E-: Excitation voltage negative

• S+: Signal feedback positive

• S-: Signal feedback negative

• Sh: Shield wire

Protocol Support

Function Features

Embedded Design

• Ultra-small on-board PCB module, saves space

• Standard stamp holes or pin headers for easy soldering and connection

• Wide voltage input (DC 5-12V), adapts to various power supply environments

Intelligent Control

• AT command-based interaction, low learning curve

• Commands for real-time weight query, tare setting, calibration, etc.

• Built-in digital filtering and stability judgment algorithms

Industrial Compatibility

• Supports mainstream industrial load cell interfaces

• Anti-interference design ensures data stability

• Compatible with Windows, Linux, Android, and other system platforms

Application Scenarios

• Core board for embedded smart scales (e.g., parcel scales, kitchen scales, jewelry scales)

• Weighing function integration for Android all-in-one PCs, POS systems, self-service terminals

• Embedded weighing and sorting equipment for industrial production lines

• Data acquisition modules for laboratory instruments and medical equipment

• Internet of Things (IoT) smart weighing nodes

Customization Services

Qingsi Electronic Technology Co., Ltd. provides in-depth customization services based on your specific product requirements:

• Custom specific AT command sets and communication protocols

• Adjust module size and interface definitions to fit specific structures

• Pre-install customer-specific firmware for out-of-the-box use

• Hardware and software ODM cooperation, providing complete weighing solutions

Qingsi Electronic Technology Co., Ltd. All technical specifications subject to change without notice.

For inquiries and technical support: Manager Chen | Tel: +86 15106111829