# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**4 device listed.**

## RFID RC522 Kit

NXP MFRC522-based 13.56MHz RFID reader/writer kit with SPI interface, including reader module, MIFARE 1K card, and key fob. Ideal for access control and identification projects.

[Details](https://openhardware.directory/devices/rfid-rc522-kit) | [Markdown](https://openhardware.directory/devices/rfid-rc522-kit/md)

## LoRa A39-T230A30D1a SX1262 Module

Long-range LoRa transceiver module with Semtech SX1262, UART interface, 1W output power, and up to 16km range at 210-241MHz. Ideal for remote telemetry and agricultural IoT.

[Details](https://openhardware.directory/devices/lora-a39-module) | [Markdown](https://openhardware.directory/devices/lora-a39-module/md)

## FT232 USB to TTL Serial Adapter

FTDI FT232RL-based USB-to-TTL serial adapter with selectable 3.3V/5V logic, 6-pin header, and full modem signals. Essential tool for programming Arduino, ESP8266, and other MCUs.

[Details](https://openhardware.directory/devices/ft232-usb-to-ttl) | [Markdown](https://openhardware.directory/devices/ft232-usb-to-ttl/md)

## nRF24L01 2.4GHz Wireless Module

Nordic nRF24L01+ 2.4GHz wireless transceiver module with SPI interface, 2Mbps data rate, 126 channels, and up to 100m range. Popular choice for Arduino and Raspberry Pi wireless sensor networks.

[Details](https://openhardware.directory/devices/nrf24l01-wireless-module) | [Markdown](https://openhardware.directory/devices/nrf24l01-wireless-module/md)