This is a simple (maybe not so simple :) ) non blocking library for the Avia Semiconductor HX711 24-Bit Analog-to-Digital Converter (ADC) for Weight Scales.

With this library you can:

• use it in a blocking or non blocking way.
• suppress the first readings after a reset.
• check the status of the chip:
  • init: the chip is initializing and has not reached the required reads
  • valid: the last reading is valid
  • poweredDown: the chip is powered down
  • timedOut: the initializing time after powerup, reset and gain change is 400 ms when the output data rate is 10 Hz, if the chip is not ready after 500 ms it's probably disconnected
• optionaly smooth the output by applying exponetial smoothing, the smoothing factor alpha can be between 1/256 and 255/256
• tare the output, which "resets" the output to 0, this can use the smoothed and the unsmoothed output
• calibrate the chip by adjusting the output to the desired value.
• all the settings can be read and written to.

See the example how to use this library.