Description

Specification Details
Module type Pressure sensor with HX710B analog-to-digital converter
Advertised pressure range 0–40 kPa, approximately 0–0.4 bar or 0–5.8 psi
Board supply voltage 3.3–5 V DC
ADC resolution 24-bit output; this does not represent pressure-measurement accuracy
Amplifier gain Fixed gain of 128
Sampling rate Selectable 10 or 40 samples/second
Digital interface Clock-and-data serial interface; not standard I²C
Connections VCC, OUT, SCK and GND
Output format Raw signed digital readings requiring conversion to pressure
Pressure connection Hose nozzle on the sensor
Calibration Zero-offset and span calibration required for accurate pressure readings
Measurement accuracy Depends on the fitted pressure sensor and calibration; not confirmed for this board
ADC operating temperature −40 to +85 °C; complete-board rating depends on the pressure sensor
Applications Low-pressure air monitoring, pneumatic experiments and indirect water-level measurement using an air tube