Since the device mimics a keyboard, you don't need complex APIs or DLLs. You simply need to: to a specific input field in your UI.
Converts the hex ID to a standard 10-digit decimal number.
The R20XC sends only the card UID, not the Enter key. Check your device’s configuration: Some versions require a jumper setting or a specific command to enable automatic CR/LF output. If your reader lacks this feature, you can append a newline using an AutoHotkey script (Windows) or xdotool (Linux) to simulate an Enter keystroke. r20xcusb software
| Card Type | Supported Features | | ----------------------------------- | ----------------------------------------------------------------- | | (1 KB) | Full read/write support (UID + data blocks) in raw serial mode | | MIFARE Classic S70 (4 KB) | Full read/write support (UID + data blocks) | | MIFARE Ultralight / NTAG21x | UID read‑only; data read/write requires specific commands | | MIFARE DESFire | UID only (DESFire encryption requires additional firmware support)| | Generic 13.56 MHz ISO14443A tags | UID read only in most cases |
of the reader. The software will instantly output the card number to your screen. link for a particular manufacturer? RFID Card Reader R20 - OCOM Technologies Limited Since the device mimics a keyboard, you don't
If it doesn't auto-install, you can manually update the driver in Device Manager under "Smart Card Readers" or "Human Interface Devices".
Using the hardware without its specialized configuration tool limits you to its default factory output format. Deploying the official R20XCUSB management utility provides a suite of customization features: 1. Advanced Output Data Formatting The R20XC sends only the card UID, not the Enter key
: 13.56MHz (standard for IC/Mifare cards; will not read 125kHz ID cards). Protocol Support : Supports ISO 14443A and Mifare protocols.