MIFARE 1K rfid reader writer YHY638AU with USB interface; can read and write iso 14443A mifare cards Happy new year---New year’s Specials Up to 50% off sale select ItemsPlease check our Aliexpree’s store <http://www.aliexpress.com/store/101297

Please note that there is no CD on the package now, please download the SDK from the link as following,

http://www.box.com/s/se74f7qtak9fhppg1a9l for YHY638A_en_SDK.rar

http://www.box.com/s/n9xc48505k9fqvp2m9ap for eReader 3.1.rar

MIFARE 1K Reader Writer USB YHY638AU  1.Supported cards:ISO 14443 A: Mifare_One(S50&S70)/UltraLight/Mifare_ProX.2Special FeaturesRead and write contactless smart cardsFrequency: 13.56 MHz.Typical time to read and write cards<100msCommunications Interface:USB, baud rate 4800 115200 bpsPower supply DC 5VTwo LED indicators (software controlled)Buzzer alarm (software controlled)Mechanic and environmental characteristics:- Size: 110 ×80× 26mm- Operating temperature: -10 ~60- Storage temperature: 25 ~80- Relative humidity: up to 90%- Weight: 90g3. Full set includes :YHY638AU RFID reader with usb cable 1 pcsSoftware pack :SDK (C#, VB ,VC& Delphi - demo program and source code)Demo program - show how to read and write data from the tagsource code - speed up software development timedetail DLL command setdata sheet & user manualUSB to virtual com driver (USB type)4. Electrical Characteristics 4.1 Operating Condition RangeRelative humidity:up to 90%Table 1 - Operating Condition Range

Symbol	Parameter	Conditions	Min	Typ	Max	Unit
Tamb	Ambient Temperature		-10	25	60
VDD	DC Supply Voltage	DVSS = 0V	4.5	5	5.5	V

4.2 Current ConsumptionTable 2 - Current Consumption

Symbol	Parameter	Conditions	Min	Typ	Max	Unit
IDVDD	Supply Current	Reading started but no cards in the reader range		90		mA
IDVDD		Reading started, 1 card in the reader range		95		mA

New version Utility Software eReader 3.1 (PLEASE SEE THE FOLLOWING--The software need to pay before, NOW FREE!!!)- - - - - - - - - - - - - - - - - - -eReader 3.1Release date: 2011-03-18- - - - - - - - - - - - - - - - - - -1. Add id counter,and record id and time to idrecord.txt2. Add reading whole sector3. Add MS key mode, MASTER key and SLAVE key.4. Add ascii string input and output interface, usefule for end user to operate mifare cards,the program will record the id,string code,time to AsciiWriteRecord.txt5. Add ePurse function,the user can use it operate value information,the program will record the id,value,and time into file--ePuresRecord.txt6. Add ISO15693 anticol function,it can find the rfid items near the reader7. Add ascii string converting to hex code8. Add hex code XOR operation

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