24-bit resolution, which allows for high precision in converting the analog signals from load cells into digital data.
Input Channels:Two differential input channels for connecting two load cells, but typically, only one channel is used in most applications.
Operating Voltage: 2.6V to 5.5V
Low Power Consumption: It has low power consumption, typically 1.2mA in normal operation and even lower in standby mode (around 50µA).
Built-in Programmable Gain Amplifier (PGA): The gain is adjustable with selectable gains of 32, 64, or 128. This allows the amplification of small signals coming from the load cell.
The HX711 can output data at 10Hz or 80Hz rates, selectable through a pin.
10Hz mode provides more stable readings but slower updates.
80Hz mode gives faster updates but may have slightly less stability.
Serial Interface (Two-wire): The HX711 uses a clock and data line for communication with a microcontroller (e.g., Arduino).
It uses a simple synchronous clock signal to transfer data from the ADC to the microcontroller.
Operating Temperature: -40°C to 85°C
Storage Temperature: -40°C to 125°C
Low noise: This makes it suitable for sensitive measurements.
Zero drift: The device has minimal drift over time, which is important for long-term stability.
The HX711 has a power-down mode where it consumes very little power, which can be useful for battery-powered applications.
The HX711 uses an internal clock and does not require an external clock source, simplifying its design.
VCC: Power supply (2.6V - 5.5V)
GND: Ground connection
DT (Data): Output of the digital data to the microcontroller
SCK (Clock): Serial clock input to control data reading
VREF (Reference Voltage): The reference voltage for the load cell; typically connected to VCC
PDWN (Power Down): Pin to put the HX711 into a power-down mode
Weighing scales (both industrial and personal)
Load cells for force measurement
Pressure sensors in hydraulic or pneumatic systems
Robotics for measuring weight or pressure