HX711 Balance Module
 
The load cell amplifier board for the HX711 IC allows you to easily read cell load to measure weight. By connecting an amplifier to your microphone you will be able to read the resistance changes of the load cell and with some calibration, you'll be able to get very accurate weight measurements. This can be useful for creating your own industrial scale, control process, or simply the presence of an object
 
Characteristics:
Low noise and programmable amplifier chip, a selectable gain of 64 and 128
On-chip voltage regulator circuit supplies power directly to the external sensor and on-chip A / D converter
On-chip oscillator clock does not require external components, if necessary, use an external crystal or clock
Automatic power in the reset circuit
Simple digital control Communication arrangements: All are controlled by input pins, the chip programmers without programming
 
Specifications:
Data output rate: 10Hz or 80Hz optional
Temporary delay of 50Hz 60Hz intervention power
Power consumption (including circuit power supply): Typical operating current: <1.7mA, switching off current: <1μA
Operating voltage range: 2.6 ~ 5.5V
Operating temperature range: -20 ~ + 85 °
Footprint Chip: SOP-16 16 pin
Size: 3x2.3cm / 1.18x0.91 "
 
Resources:
1. Tutorial to Interface HX711 Balance Module With Load Cell
2. Weighing Machine using Arduino Load Cell & HX711 Module
3. Weighing scale using load cell and HX711 amplifier with Arduino