Nol.A library for digital weight scale based on HX711. More...

#include <HX711.hpp>

Public Member Functions
	Hx711 (uint8_t pin_din, uint8_t pin_slk)
	Bind the data-output pin (pin_din) and serial-clock pin (pin_slk).
void	begin ()
	Configure GPIO, zero using 32 samples, and set the default scale of 742.
int32_t	getMilligram ()
	Return one calibrated sample in milligrams using (raw - offset) * 1000 / scale.
int32_t	getAveragedMilligram (uint8_t times=32)
	Return an averaged calibrated reading in milligrams.
void	setOffset (int32_t offset)
	Set the raw ADC count subtracted before scaling.
int32_t	getOffset ()
	Return the current zero-load offset in raw ADC counts.
void	setScale (int32_t scale=742)
	Set the calibration divisor in ADC counts per gram.
int32_t	getScale ()
	Return the current calibration divisor in ADC counts per gram.
void	adjustZero ()
	Average 32 raw samples and store the result as the zero-load offset.

Detailed Description

Nol.A library for digital weight scale based on HX711.

Note: This code is implemented based on Weihong Guan's Arduino library (https://github.com/aguegu/Arduino).

Blocking HX711 load-cell reader with offset and scale calibration. Reads wait indefinitely for data-ready. Call begin() with the scale unloaded.

Member Function Documentation

int32_t Hx711::getAveragedMilligram ( uint8_t times = 32 )

Return an averaged calibrated reading in milligrams.

Parameters

times Number of raw samples to average; must be greater than zero.

void Hx711::setOffset ( int32_t offset )

Set the raw ADC count subtracted before scaling.

Parameters

offset Zero-load ADC offset.

void Hx711::setScale ( int32_t scale = 742 )

Set the calibration divisor in ADC counts per gram.

Parameters

scale Nonzero divisor, default 742; the driver does not validate it.

The documentation for this class was generated from the following file: