IDUINO Digital Load Cell Weight Sensor + HX711 Weighing Breakout Board AD Module Pressure Sensors for Arduino DIY Electronic Portable Kitchen Scale (1KG+HX711)

HX711 is a 24-bit A/D converter chip designed for high-precision load cells. Compared with other chips of the same type, this chip integrates the peripheral circuits required by other chips of the same type, including regulated power supply, on-chip clock oscillator, and so forth., and has the benefits of high integration, fast response, and strong anti-interference. The whole machine cost of the electronic scale is reduced, and the performance and reliability of the whole machine are improved. The interface and programming of the chip and the back-end MCU chip are very simple, all regulate signals are driven by pins, and there’s no want to program the registers inside the chip. The input selection switch can arbitrarily make a selection channel A or channel B and connect it with its internal low-noise programmable amplifier. The programmable gain of channel A is 128 or 64, and the corresponding full-scale differential input signal amplitude is ±20mV or ±40mV, respectively. Channel B is a fixed gain of 32 for system parameter detection. The regulated power supply provided in the chip can immediately supply power to the external sensor and the A/D converter in the chip, and no additional analog power supply is required at the system board. The on-chip clock oscillator does not require any external components. The power-on automatic reset function simplifies the initialization process of power-on.

Load Cell: Easy to use. With 5-10V driving voltage, the force change is immediately output as a voltage signal.
HX711 module: A 24-bit A/D converter chip specially designed for high-precision load cells.
Connection: Red to E+; Black to E-; Green to A+; White to A-.
Two-way optional differential input; On-chip low-noise programmable amplifier with selectable gains of 64 and 128.
Instructions: One end of the sensor is fixed by a screw hole, and the other end is left in the air. Apply force in the direction indicated by the label. Please be careful to not immediately press the white latex part to steer clear of damage to the sensor.