Based on AT89C51 digital thermometer

A, AT-12 A learning board main features:
http://www.siliconray.com/stc-8051-standard-kit.html
1. Direct USB port the power supply can be through the computer USB port download program, convenient no serial notebook computer download and direct burn to write programs.
2. Direct download and write program online, don't need to purchase another single-chip microcomputer and writing implement, also can at any time convenient to burn to write programs to the single chip microcomputer program operation in check, learning, commissioning
Program of frequent and write save complex, changing pieces process.
3. A direct online simulation function, don't need another purchase expensive emulator. The chip in experiment, and directly online one step, commissioning at full speed.
4. The day AT-12 A learning board set experiment development board, A programming console, and write device, simulators four one, simple and efficiency.
5. Rich hardware resources: AD modulus conversion chip, DA ? number