Specifications

Model: HF20

Introduction

HF20 is small size, 13.56M RFID card reader module, with TTL interface, It programmed with

client mifare card secure code and read certain data from the card, once card is read successful,

the data is sent to host via TTL interface.

Host may enable or disable the on board white LED communication via TTL.

Feature

TTL interface; Read pre-programmed mifare card data.

12V DC working voltage

Specification

Support client programmed miafre card

Size 41*26mm

Power input 12V DC @ 100mA

Interface TTL, 9600, N,8,1

Reading distance 2-4 cm

Frequency 13.56M

Operation temperature -30 C to +60 C

operation humidity 5%-95% relative humidity non-condensing

Audio/Visual Indication LED

Weight 12

card number output format TTL, ASCII

Wiring and Function

Connect module to host by 4 PINs connector

Once card is detected well, RED LED will

Flash one time and data is sent via Tx to host

Turn on White LED:

Host send “ON” in ASCII to module

Turn off White LED

Host send “OFF” in ASCII to module

13.56M RFID Reader module

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3.56M RFID Reader module Model: HF20 Introduction HF20 is small size, 13.56M RFID card reader module, with TTL interface, It programmed with client mifare card secure code and read certain data from the card, once card is read successful, the data is sent to host via TTL interface. Host may enable or disable the on board white LED communication via TTL. Feature TTL interface; Read pre-programmed mifare card data.
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This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and 2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.