Utility for the ACR 122U NFC Reader. Reads and/or sets various reader settings:
- firmware
- tag polling configuration
- tag response timeout
- buzzer

Connect the reader via an On-The-Go USB Cable (OTG-USB).

See also the External NFC Reader Service app.

Get in touch if you require professional help with use of ACR readers on Android or if you have feature requests.

Keywords: ACR 122 NFC USB ACS