PRODUCT DETAILS
Description
 
WEIGHT integrates a HX711 24 bits A/D chip that is specifically designed for electronic weighing device.
The input multiplexer selects either Channel A or B differential input to the low-noise programmable gain amplifier (PGA). Channel "A" can be programmed with a gain of 128 or 64, corresponding to a full-scale differential input voltage of ±20mV or ±40mV respectively.
when a 5V supply is connected to AVDD analog power supply pin.
Channel B has a fixed gain of 32. There is no programming needed for the internal registers. All controls to the HX711 are through the pins.
In the test, we have this Unit channel A to connect a pressure sensor. Then, use M5Core screen to display the weight data.
  
Product Features
 
 
Two selectable differential input channels
 
On-chip active low noise PGA with selectable gain of 32, 64 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 controls, no 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 < 1.5mA, power down < 1uA
 
Operation supply voltage range: 2.6 ~ 5.5V
 
Operation temperature range: -40 ~ +85℃
 
16 pin SOP-16 package
 
Program Platform: Arduino, UIFlow(Blockly, Python)
 
Two Lego-compatible holes
 
 
Include
 
 
1x WEIGHT Unit
 
1x Grove Cable
 
 
Applications
 
 
 Micro weight meter
 
 Kitchen Scale
 
 
Specification
 
 
 
 
Resources
 
Parameter
 
 
 
 
 
Operating Voltage
 
g
 
 
 
Operating Current
 
g
 
 
 
Net weight
 
8g
 
 
 
Gross weight
 
20g
 
 
 
Product Size
 
40*24*12mm
 
 
 
Package Size
 
67*53*12mm
 
 
 
LEARN AND DOCUMENTS
 
  
 
 
 Thanks for the source code and project information provided by @沧海