This Kit consists of HX711 on a breakout board and a 5kg load cell, This HX711 is specially made for amplifying the signals from load cells and reporting them to another microcontroller. The load cells plug into this board, and this board tells the Arduino what the load cells measure. Load cells are specially shaped metal parts that have strain gauges glue to them. The strain gauges are resistors that change their resistance when they are bent. When the metal part bends, the resistance of the load cell changes (the HX711 measures this small change in resistance accurately). 

Specifications of the HX711 Module:

• - Two selectable differential input channels
• - Active low noise PGA with selectable gain of 32, 64 and 128
• - Power supply regulator for load cell and ADC analog power supply
• - Oscillator on a chip that does not require external component with optional external glass
• - Power-on-reset on the chip
• - Simple serial control and serial interface: controls driven by pins, programming is not required
• - Output data rate 10SPS or 80SPS selectable
• - Simultaneous rejection of 50 and 60Hz supply
• - Current consumption, including the controller of the analog power supply on the chip:
• - Operating supply voltage range: 2.6 ~ 5.5V
• Circuit Board Size: Approx. 25 x 15mm 

Load Cell 5Kg A/D 24 Bits features:

• - Normal operation <1.5 mA, off <1uA
• - Operating temperature range: -40 ~ + 85 „ƒ
• - Size 35mmx20mm Load cell
• - Load Range: 5kg
• - Operating voltage: 3VDC ~ 14 VDC
• - Nominal output: 1.0 ± 0.15mV / V
• - Repeatability: 0.03% FS
• - Effect of the temperature at the outlet: 0.01% F.S / ° C
• - Effect of temperature on zero: 0.05% F.S / ° C
• - Zero: ± 0.1000 mV / V
• - Input impedance: 1115 + -10% Ω
• - Output impedance: 1000 + - 10% Ω
• - Insulation resistance:> = 1000 MΩ
• - Safe Overload Rate: 150% FS
• - Final overload rate: 200% FS
• - Temperature range: -20 - 60 ° C
• - Material: Aluminum alloy
• - Degree of protection: IP65
• - Cable length: 25 cm 

Pinout of the Module:

* Red: Feeding +

* Black: Source -

* Green: Sign +

* White: Signal -

Package Include:

1 x 5k Weight Sensor
1 x HX711 Module