CircuitPython interface for DYMO postage scales.

NOTE: This library will not work on embedded linux, only on microcontrollers.

This driver depends on:

• Adafruit CircuitPython

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-dymoscale

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-dymoscale

To install in a virtual environment in your current project:

mkdir project-name && cd project-name python3 -m venv .env source .env/bin/activate pip3 install adafruit-circuitpython-dymoscale

Initialize the scale by passing it a data pin and a pin to toggle the units button:

# initialize the dymo scale units_pin = digitalio.DigitalInOut(board.D3) units_pin.switch_to_output() dymo = adafruit_dymoscale.DYMOScale(board.D4, units_pin)

Get the item's weight from the scale:

reading = dymo.weight print(reading.weight)

Get the item's units from the scale:

print(reading.units)

To toggle between units (simulate a button press):

dymo.toggle_unit_button(switch_unit=True)

To toggle the unit button, but preserve the unit displayed:

dymo.toggle_unit_button()

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.

For information on building library documentation, please check out this guide.