# felHR85/UsbSerial

Usb serial controller for Android

Repository: https://github.com/felHR85/UsbSerial
Canonical: https://ross.abutalabs.com/products/usbserial
Language: Java
License: MIT
License Family: permissive
Topics: usb-serial-controller, ftdi-devices, serial, serialport, android, hardware, usb, usb-serial-adapters, spi, ftdi-device, iot, iot-device, android-serial-port, android-hardware, android-usb-host
Last push: 2024-08-01T18:00:08+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4549, "days_push": 762, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1948, forks 631 (observed 2026-08-28T04:05:57.966607+00:00)

## What it is
A Java library providing USB serial port communication for Android devices, supporting common USB-to-serial chips like FTDI, CP210x, PL2303, CH34x, CDC, and CP2130 SPI bridges. It offers synchronous, asynchronous, and stream-based APIs for reading and writing to serial devices connected via Android's USB host mode.

## Use cases
- communicate with arduino over usb from android app
- read data from usb serial adapter on android
- android usb host serial port library
- talk to ftdi or cp2102 device from phone
- control hardware over spi via usb on android
- build a serial terminal app for android

## When to choose
- you need USB serial communication in an Android app
- your hardware uses FTDI, CP210x, PL2303, CH34x, or CDC chips
- you want both sync and async serial I/O APIs on Android

## When to avoid
- targeting Android 5.1.1 due to a known OS bug
- you need desktop or non-Android serial communication
- you need a chip driver not in the supported list

## Facets
- artifact type: library
- maturity: maintenance
- function: sdk, file-system
- domain: iot, android-tools, hardware, embedded-systems
- platform: jvm
- tags: usb-serial, ftdi, cp210x, pl2303, ch340, cdc, spi, usb-host, serial-port, android, mobile

## Member repositories
- felHR85/UsbSerial (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:57.966607+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:06:59.211858+00:00, confidence not recorded.
  - readme: https://github.com/felHR85/UsbSerial (fetched 2026-08-28T04:05:57.966607+00:00, sha acf359b53f83)
- Data as of 2026-08-30T08:39:29.467469+00:00.