numato-gpio
Python API for Numato GPIO Expanders
Decision gist · record as of 2026-08-14
Yes, if you own a Numato USB GPIO expander and need Python control on Linux. The package is stable, permissively licensed, has no known vulnerabilities, and low install friction. Maintenance is aging but active. Not suitable if you need async I/O, Windows-only deployment, or support for other GPIO hardware.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a Numato USB GPIO device connected and accessible via /dev/ttyACM* on Linux (or COM* on Windows); user must have read/write permissions to the device file.
- Low friction installation with only two runtime dependencies (pyserial and rich).
- Package is aging but still maintained; last commit was recent and no vulnerabilities reported.
License · maintenance · safety
MIT (permissive) — MIT license permits free use, modification, and distribution with minimal restrictions—suitable for most projects including commercial work.
last release 2025-04-29 (472 days) · last repo commit 2025-11-11 · 4 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 75,468 downloads/mo, #14,709 on PyPI
Alternatives
Verify before relying
pip install numato-gpio
import numato_gpio as gpio
dev = gpio.NumatoUsbGpio("/dev/ttyACM0")
dev.setup(4, gpio.OUT)
dev.write(4, value=1)- Whether Windows support is fully functional or limited compared to Linux
- Current state of async API availability beyond the known limitation noted in docs
- Compatibility with Numato devices beyond the 8/16/32/64/128-port models listed
What it is and what it does
numato-gpio is a Python driver for Numato's USB GPIO expander hardware. It lets you configure individual ports as inputs or outputs, read and write digital logic levels, sample analog values from ADC inputs, and register callbacks to respond to rising or falling edges on input ports. The package wraps serial communication with these devices and exposes a straightforward procedural API—you instantiate a device object pointing to its USB serial port, then call methods to set up pins and perform I/O operations.
The package depends on pyserial for USB communication and rich for terminal output. It supports Python 3.9 through 3.13 and is tested on Linux; Windows support exists but is less thoroughly validated. The maintainer notes that discovery is currently limited to Linux /dev/ttyACM* devices, and there is no async API yet. The codebase has been in use in Home Assistant integrations since 2018, though the author acknowledges room for improvement in documentation and API design.
Use it for
- Control relay banks or LED arrays via USB from a Python application without dedicated GPIO hardware.
- Read analog sensor inputs through the ADC ports on Numato expanders in a lab or embedded system.
- Implement event-driven logic that responds to button presses or sensor state changes via edge-detection callbacks.
- Integrate GPIO control into Home Assistant or other home automation platforms running on a PC or Raspberry Pi.
- Prototype hardware interfaces quickly without writing low-level serial code or learning a vendor SDK.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you own a Numato USB GPIO expander and need Python control on Linux.
The package is stable, permissively licensed, has no known vulnerabilities, and low install friction. Maintenance is aging but active. Not suitable if you need async I/O, Windows-only deployment, or support for other GPIO hardware.
Install
numato-gpio on PyPI
Before you install
Low friction installation with only two runtime dependencies (pyserial and rich). Package is aging but still maintained; last commit was recent and no vulnerabilities reported.
Requires a Numato USB GPIO device connected and accessible via /dev/ttyACM* on Linux (or COM* on Windows); user must have read/write permissions to the device file.
License in practice
MIT license permits free use, modification, and distribution with minimal restrictions—suitable for most projects including commercial work.
Quickstart
pip install numato-gpio
import numato_gpio as gpio
dev = gpio.NumatoUsbGpio("/dev/ttyACM0")
dev.setup(4, gpio.OUT)
dev.write(4, value=1)Verify before relying
- Whether Windows support is fully functional or limited compared to Linux
- Current state of async API availability beyond the known limitation noted in docs
- Compatibility with Numato devices beyond the 8/16/32/64/128-port models listed
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release <3.14,>=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagespyserialrich |
| Maintenance | Aging 472 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 75,468 / month, #14,709 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: MIT LicenseOperating System :: POSIX :: LinuxProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: numato_gpio-0.14.0-py3-none-any.whl
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See also RPi.GPIO · zigpy-zigate · libusbsio · pigpio · pyftdi · ft4222 · gpiod · usb-devices · gpiozero