Weight sensor (HX711) 20kg * 4 https://www.aliexpress.com/item/1005006827930173.html https://www.amazon.de/-/en/gp/product/B079FQNJJH/
Features
Two selectable differential input channels
On-chip active low noise PGA with selectable gain of 3264 and 128
On-chip power supply regulator for load-cell and ADC analog power supply
On-chip oscillator requiring no external component with optional external crystal
On-chip power-on-reset
Simple digital control and serial interface: pin-driven controlsno programming needed
Selectable 10SPS or 80SPS output data rate
Simultaneous 50 and 60Hz supply rejection
Current consumption including on-chip analog power supply regulator: normal operation < 1.5mApower down < 1uA
Operation supply voltage range: 2.6 ~ 5.5V
Operating Temperature Range:-20 degree ~ +85 degree
Connection:ā
Red to E+
Black to E-
Green to A+
White to A-