Buying Your Item  Buy if you have any questions about any aspects of our service or the product you are interested in, please don’t hesitate to contact our customer service team before you buy. 
Pay We the main accept paypal payment (it is quick and easy to sign up for an account at paypal.com) 
Ship Air mail:10-30 days or FedEx/UPS:3-5 work days 
Receive We are happy to replace or refund faulty goods and aim to resolve any issue quickly and to your satisfaction.and customer is responsible for return shipping costs. however, we are happy to reimburse your postage costs on verification of the fault. 

news!   XL2000 New Version began selling.(23th Apr 2009) 
Our EBAY Website: http://stores.shop.ebay.com/XUELIN-electronics-for-8051-MCU__W0QQ_armrsZ1(3th Jan 2009) 
xl2000 Development Board support ATmega8535 and ,AT89S8252,and we can offer it's chip module(15th Dec 2008) 
xl600 Development Board is marketed at October (30th August 2008years) 
Add Download Pages, We will add more content to download(2th july 2008years) 
New! Mini USB TOP853 Programmer is marketed at may (13th may 2008years) 
New! Mini USB 51tracer debugger is marketed at may (12th may 2008years)
Create complete English WEB (10th may 2008years) 
51TRACER Debugger new revised change Box appearance (10th may 2008years) 
XL2000 Development Board change version ,an increase of stepper motor drive module, SD Card Reader/Write modul
the board changed to Black(3th may 2008years) 

    The xl2000+ is an integrated demo system for the study and development of the 8051 Microcontroller, which is provided with four functions: experimental instrument, programmer, simulation interface, and ISP download cable. Enclosed with the control CPU is programming software which has independent intellectual property rights.
Currently, the price of most professional 51 simulators in the market is more than 2000yuan (about US$300) and beginners often cannot afford it. Meanwhile, a large volume of simulator designed with SST single chip solution is very slow and occupies many resources, and it is not enough for real applications. The 51TRACER simulator is a brand new professional simulator developed by Xuelin Electronics, of Shenzhen who owns the full intellectual property on it. 

    With useful implemented peripherals, plentiful practical code examples, and a broad set of additional add-on USB 2.0 IN-CIRCUIT ATMEL 8051 DEVELOPMENT BOARDboards (12864LCD , Stepper Motor, Real Time Clock DS1302,ADC, DAC, etc.), MikroElektronikadevelopment boards make fast and reliable tools that can satisfy the needs of experienced engineers and beginners alike.