Simultaneously compatible with AT, STC series microcontroller (support chip: STC89C52 STC12C5A60S2 STC11/10x series AT89S52 and chip compatible with the above chip pins).
Single-chip microcomputer 40 IO all pinout, with self-locking switch, can easily switch power on and off.
With LED power supply lamp indication.
3.5mm*1.3mm can be connected to the external power supply seat.
The pin leads 3 way VCC and GND, which can input or output power.
The pull resistance of P0 has been pulled up.
With Resistance capacity and manual reset circuit.
Support ISP downloads and serial download programs.
Integrated ISP 10P download interface, easy to download AT89S52 microcontroller.
Below the crystal oscillator is the circular hole socket, convenient replacement crystal oscillator (default matches 11.0592M).
Support for 2 power input modes: DC power seat (matching seat 3.5mm*1.3mm) and single pin (next to the power switch).
With 1pc programmable LED, which can do LED experiments.
Working voltage: DC 5V
Weight: About 50g
Product Size(L x W x H): 9.0 x 4.0 x 1.5 cm / 3.54 x 1.57 x 0.59 inches
With the proficiency of 51 single-chip, further learning AVR microcontroller, only through an AVR microcontroller adapter board, you can continue to use the small board as the AVR microcontroller minimum system.