serial-scale-hx711
Python driver for Arduino+HX711 serial weighing scales.
Renamed from
serial-weighing-scale(PyPI:serial-weighing-scale≤ 2.0.4). New releases publish underserial-scale-hx711. A deprecation stub remains on PyPI under the old name pointing here.
Hardware
- Arduino Uno (USB-A to USB-B cable)
- HX711 load cell amplifier (e.g. SparkFun SEN-13879)
- Load cell 100 g or 500 g (e.g. SEN-14727 / SEN-14728)
- Firmware: see
scale_firmware/(uses olkal/HX711_ADC)
The scale identifies itself as <SerialWeighingScale> over 115200 baud.
Install
pip install serial-scale-hx711
Or editable from this repo:
pip install -e .
Usage
from serial_scale_hx711 import Scale
scale = Scale(serial_port="/dev/ttyACM1")
scale.start() # connect and wait for firmware init
scale.tare()
weight = scale.read_weight_blocking() # grams, blocks until stable
scale.disconnect()
Auto-detect port
from serial_scale_hx711 import connect_serial_scale
scale = connect_serial_scale(["/dev/ttyACM0", "/dev/ttyACM1", "/dev/ttyACM2"])
API
| Method | Description |
|---|---|
start(timeout=10) |
Connect and wait for firmware ready |
tare() |
Zero the scale |
read_weight() |
Single reading (float or None) |
read_weight_blocking(n_valid, timeout) |
Block until N valid readings, return median |
read_weight_reliable(n_readings, measure) |
Repeated reads with custom aggregation |
identify() |
True if firmware responds with identity string |
get_calibration_factor() |
Read calibration factor from firmware |
disconnect() |
Close serial connection |
murineshiftwork integration
Used via murineshiftwork.logic.scale.SerialWeighingScaleAdapter. Install with:
pip install "murineshiftwork[calibration]"
1 maintainer
Metadata
1 maintainer
Release files for serial-scale-hx711 2.1.4
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
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| serial_scale_hx711-2.1.4.tar.gz | 9.7 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| serial_scale_hx711-2.1.4-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 19.5 kB
Release files / serial_scale_hx711-2.1.4.tar.gz
| Download URL | serial_scale_hx711-2.1.4.tar.gz |
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| Size | 9.7 kB |
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Release files / serial_scale_hx711-2.1.4-py3-none-any.whl
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