4Pcs 1kg Load Cell HX711 AD Weight Modulel:

• 1. 4 leads, easy to use, plus 5-10V driving voltage, directly output as voltage signal due to force change. For arduino and raspberry pi.
• 2. One end of the sensor is fixed with screw holes, the other end is kept floating, and gravity is applied in the direction shown on the label.
• 3. Pay special attention not to press the white rubber part directly, so as not to damage the sensor.
• Package: 4 X 1kg load cell weight sensor 4 X HX711 AD modules.
• HX711 Features:
• Two optional differential input channels
• On-chip active low noise PGA with selectable gains of 3264 and 128
• On-chip power regulator for load cell and ADC analog power
• On-chip oscillator requires no external components, optional external crystal
• Chip power-on reset
• Two selectable differential input channels.
• On-chip active low noise PGA with selectable gains of 32, 64 and 128.
• On-chip power regulator for load cell and ADC analog power.
• The on-chip oscillator requires no external components, and an external crystal is optional.
• The HX711 is mounted on a breakout board, includes a breakout header for connection, needs to be soldered

• HX711 AD Weight Module
• 1. The module adopts 24-bit high-precision A/D conversion chip hx711, which is specially designed for high-precision electronic scales. It has two analog input channels, and an internal programmable gain amplifier integrates a 128-bit multiplier.
• 2. The input circuit can be configured to provide bridge voltage. The bridge (such as pressure, weight) sensor model is an ideal high-precision, low-cost sampling front-end module.
• 3. Operating power supply voltage range: 2.6 - 5.5V, operating temperature range: -10 degrees to +50 degrees.
• 4. Simple digital control and serial interface: No programming required for pin drive control.
• 5. Selectable 10SPS or 80SPS output data rate with simultaneous 50 and 60Hz power supply rejection.
• 6. Current consumption includes on-chip analog power regulator: normal operation <1.5mApower down<1uA.

Connection method：

• red to E+
• black to E-
• Green to S+
• White to S-

Features

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, etc., and has the advantages 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 control signals are driven by pins, and there is no need to program the registers inside the chip. The input selection switch can arbitrarily select 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 directly supply power to the external sensor and the A/D converter in the chip, and no additional analog power supply is required on 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.