PyLabRobot is a hardware agnostic, pure Python library for liquid handling robots, plate readers, pumps, scales, heater shakers, and other lab automation equipment. Read the paper in Device.
Advantages over proprietary software:
- Cross-platform: PyLabRobot works on Windows, macOS, and Linux. Many other interfaces are Windows-only.
- Universal: PyLabRobot works with any supported liquid handling robot, plate reader, pump, scale, heater shaker, etc. through a single interface.
- Fast iteration: PyLabRobot enables rapid development of protocols using atomic commands run interactively in Jupyter notebooks or the Python REPL. This decreases iteration time from minutes to seconds.
- Open-source: PyLabRobot is open-source and free to use.
- Control: With Python, you have ultimate flexibility to control your lab automation equipment. You can write Turing-complete protocols that include feedback loops.
- Modern: PyLabRobot is built on modern Python 3.9+ features and async/await syntax.
- Fast support: PyLabRobot has an active community forum for support and discussion, and most pull requests are merged within a day.
Liquid handling robots (docs)
PyLabRobot enables the use of any liquid handling robot through a single universal interface, that works on any modern operating system (Windows, macOS, Linux). We currently support Hamilton STAR, Hamilton Vantage, Tecan Freedom EVO, and Opentrons OT-2 robots, but we will soon support many more.
Here's a quick example showing how to move 100uL of liquid from well A1 to A2 using firmware on Hamilton STAR (this will work on any operating system!):
from pylabrobot.liquid_handling import LiquidHandler
from pylabrobot.liquid_handling.backends import STAR
from pylabrobot.resources import Deck
deck = Deck.load_from_json_file("hamilton-layout.json")
lh = LiquidHandler(backend=STAR(), deck=deck)
await lh.setup()
await lh.pick_up_tips(lh.deck.get_resource("tip_rack")["A1"])
await lh.aspirate(lh.deck.get_resource("plate")["A1"], vols=100)
await lh.dispense(lh.deck.get_resource("plate")["A2"], vols=100)
await lh.return_tips()To run the same protocol on an Opentrons, use the following:
from pylabrobot.liquid_handling.backends import OpentronsBackend
deck = Deck.load_from_json_file("opentrons-layout.json")
lh = LiquidHandler(backend=OpentronsBackend(host="x.x.x.x"), deck=deck)Or Tecan (also works on any operating system!):
from pylabrobot.liquid_handling.backends import EVO
deck = Deck.load_from_json_file("tecan-layout.json")
lh = LiquidHandler(backend=EVO(), deck=deck)We also provide a browser-based Visualizer which can visualize the state of the deck during a run, and can be used to develop and test protocols without a physical robot.
Plate readers (docs)
Moving a plate to a ClarioStar using a liquid handler, and reading luminescence:
from pylabrobot.plate_reading import PlateReader, ClarioStar
pr = PlateReader(name="plate reader", backend=ClarioStar(), size_x=1, size_y=1, size_z=1)
await pr.setup()
# Use in combination with a liquid handler
lh.assign_child_resource(pr, location=Coordinate(x, y, z))
lh.move_plate(lh.deck.get_resource("plate"), pr)
data = await pr.read_luminescence()For Cytation5, use the Cytation5 backend.
Centrifuges (docs)
Centrifugation at 800g for 60 seconds:
from pylabrobot.centrifuge import Centrifuge, VSpin
cf = Centrifuge(backend=VSpin(bucket_1_position=0), name="centrifuge", size_x=1, size_y=1, size_z=1)
await cf.setup()
await cf.start_spin_cycle(g = 800, duration = 60)Pumps (docs)
Pumping at 100 rpm for 30 seconds using a Masterflex pump:
from pylabrobot.pumps import Pump
from pylabrobot.pumps.cole_parmer.masterflex import Masterflex
p = Pump(backend=Masterflex())
await p.setup()
await p.run_for_duration(speed=100, duration=30)Scales (docs)
Taking a measurement from a Mettler Toledo scale:
from pylabrobot.scales import Scale
from pylabrobot.scales.mettler_toledo import MettlerToledoWXS205SDU
backend = MettlerToledoWXS205SDU(port="/dev/cu.usbserial-110")
scale = Scale(backend=backend, size_x=0, size_y=0, size_z=0)
await scale.setup()
weight = await scale.get_weight()Heater shakers (docs)
Setting the temperature of a heater shaker to 37°C:
from pylabrobot.heating_shaking import HeaterShaker
from pylabrobot.heating_shaking import InhecoThermoShake
backend = InhecoThermoShake()
hs = HeaterShaker(backend=backend, name="HeaterShaker", size_x=0, size_y=0, size_z=0)
await hs.setup()
await hs.set_temperature(37)Fans (docs)
Running a fan at 100% intensity for one minute:
from pylabrobot.only_fans import Fan
from pylabrobot.only_fans import HamiltonHepaFan
fan = Fan(backend=HamiltonHepaFan(), name="my fan")
await fan.setup()
await fan.turn_on(intensity=100, duration=60)- discuss.pylabrobot.org for questions and discussions.
- GitHub Issues for bug reports and feature requests.
If you use PyLabRobot in your research, please cite the following:
@article{WIERENGA2023100111,
title = {PyLabRobot: An open-source, hardware-agnostic interface for liquid-handling robots and accessories},
journal = {Device},
volume = {1},
number = {4},
pages = {100111},
year = {2023},
issn = {2666-9986},
doi = {https://doi.org/10.1016/j.device.2023.100111},
url = {https://www.sciencedirect.com/science/article/pii/S2666998623001709},
author = {Rick P. Wierenga and Stefan M. Golas and Wilson Ho and Connor W. Coley and Kevin M. Esvelt},
keywords = {laboratory automation, open source, standardization, liquid-handling robots},
}Disclaimer: PyLabRobot is not officially endorsed or supported by any robot manufacturer. If you use a firmware driver such as the STAR driver provided here, you do so at your own risk. Usage of a firmware driver such as STAR may invalidate your warranty. Please contact us with any questions.
Developed for the Sculpting Evolution Group at the MIT Media Lab
