Calibration, Simplified Get commands, Bug Fixes

• Calibration
  • Somewhat of a large feature addition to assist with calibration. The HX711 class now includes a function to launch a sequence to help with calibration. This is something that needs to be performed in almost all cases, so adding this functionality should help during the setup process. The calibration sequence prompts the user to confirm known weights and then calculates a weight multiple based on the measurements and those known weights.
• Get Commands
  • Due to confusion about how the read_raw() and read_weight() functions work, I added get_raw() and get_weight() to clarify when a new measurement will or will not be taken.
• Bugs
  • I found some bugs when the user supplies an integer for the dout_pins (this is a supported feature). This was supposed to allow the user to run hx711-multi with only a single ADC and not force them to use list indexing everywhere, but a bug made a small part of it not work. I fixed that bug and now you can use hx711-multi without the "multi" functionality if you pass an integer for the dout_pins input.

readme updates, printing in example script

1.1.3

better error handling when zeroing sensors

1.1.2

better error handling when zeroing sensors

Converted LoadCell to ADC for naming clarity

No large functional changes. Backward compatible unless you were accessing load cell data within the hx711 class for debugging.

1. Converted LoadCell class name and all references to load cells to "ADC". The term "LoadCell" was unused in the main part of the code, just behind the scenes. But if you were to access that data for debugging purposes, you will need to update to "LoadCell" and "_load_cells"
2. Increased max readings limit from 100 to 10k so that users with 80Hz sampling aren't limited to 1Hz effective sampling

Persistent 'weight', auto-retry zeroing reads

Primary change is to not overwrite 'weight' attribute of load cell before each read. This allows us to track weight even if a single read fails.
Also, we now retry the read when zeroing to make sure we get a good zero reference

No functional change, cleaned up property management within HX711 class

1.0.6

Logging Update

converted hx711 logging to be specific to hx711-multi instead of generic 'logging' call

Small cleanup release

• added separate function for zeroing so that we can do it manually if needed
• renamed some functions and variables for clarity
• changed load cell failure to warning since sometimes they will all fail due to clocking, but will work during the next iteration

First Full-functional Release

Working release after a few small bug changes since initial release yesterday.

• decreased standard deviation limit to 100 instead of 1000. I was seeing some instances where the bad data (coming from a sensor that isn't connected) just got lucky with being close to each other. The good sensors I am using usually only have a stdev of ~20-30.
• added 400ms sleep after a channel config change or power-up, per documentation for settling time
• reorganized test scripts as they were partially written while testing locally without the pip package
• fixed typo in readme