Weight Load cell sensor 5Kg with wire

A 5Kg Load Cell Sensor is a precision transducer used to measure weight or force up to 5 kilograms. It operates on the principle of strain gauges, where the sensor deforms slightly under load and produces a small change in resistance. This change is converted into an electrical signal which can be read by microcontrollers or amplifiers like the HX711.

Key Features:

• Capacity: 5Kg (maximum load)

• Type: Half-bridge or full-bridge strain gauge (depending on model)

• Material: Aluminum alloy – lightweight and corrosion-resistant

• Output: Analog signal (millivolt range), typically needs amplification

• Wiring: Typically 4-wire or 3-wire configuration

  • Red: Excitation+ (E+)

  • Black: Excitation– (E–)

  • Green/White: Signal+ (S+)

  • White/Yellow: Signal– (S–) (varies by manufacturer)

Applications:

• Digital weighing scales

• Kitchen scales

• DIY Arduino projects

• Robotics and automation

• Smart shelves or inventory systems

Working Principle:

When a weight is applied to the load cell, it causes a small deformation in the metal body. This deformation is detected by strain gauges attached to the sensor. The resulting change in resistance is converted into a small electrical voltage. This analog signal is proportional to the applied load and can be processed using an amplifier (like HX711) and a microcontroller (like Arduino, ESP32, etc.).