ADS121 single-channel digital weighing module is a miniature high-stability precision acquisition device compatible with digital weighing sensors. Integrated with digital weighing transmitter and digital ADC functions, it serves as an efficient replacement for traditional HX711 weighing modules for high-precision digital weighing measurement. It supports wide voltage power supply ranging from 3.3-5VDC to 12VDC, perfectly compatible with single-chip microcomputers, embedded systems and industrial control equipment with excellent universality. Equipped with dual RS485 and TTL signal outputs, it delivers stable transmission and fast response for accurate weighing data collection. Adopting a high-precision professional ADC chip, it effectively solves data drift and low precision defects of conventional weighing modules. Compact in size, easy to wire and debug, it is widely applied in civil precision metering, industrial small-scale weighing detection and equipment force measurement scenarios.