Atmel 8051 AT89C51 89C52 89S51 89S52 Microcontroller Development Board

Introduction to the function modules on board:

1. 8-bit high brightness LED racing lamp;
2. 4-bit common positive digital tube display;
3. LCD1602 and LCD12864 interface;
4. 1 channel passive buzzer;
5. 1 infrared interface;
6. 4 independent buttons;
7. 1 channel CH340G USB communication;
8. PCB Size: 90MM*76MM
   board weight: 140 g

Advantages of 51 development board:

• By default, a USB cable can be used for power supply and download. There is a ch340 serial communication download chip on the board, which can be directly downloaded by STC single-chip . At the same time, if the AT series single-chip is used, the development board has an ISP download interface, which can be directly connected to the ISP downloader for downloading.
• The development board adopts 40p IC lock seat, which is convenient for chip replacement. By default, it comes with STC89C52RC, you can replace the chip with the same pin of this chip, such as STC system pin compatible chip AT89C51, 89C52, 89S51, 89S52; ATmega16, ATmega32 (AVR need to cooperate with 51 / AVR adapter board)
• The key part has jumper cap, which can be disconnected to make it independent unit
• Development board power supply mode: computer USB power supply (USB interface) and external 5V power supply (dc-005 power supply).
• Development board reset mode: power on reset and 51 / AVR double key reset;
• Development board crystal oscillator: adopt round hole socket welding method, convenient for users to replace crystal oscillator
• External expansion power supply: 3-way 5V power supply is expanded through the row of pins to facilitate the connection of external experiment;
  All IO pins are expanded to facilitate the connection of external experiments;

Driver and development environment

1. Driver support: WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA /
Server 2008 / Win7 / Win8 32 Bit / 64/Win10
2. Development environment: Keil
3. Downloads: STC-ISP

Features:

• Onboard 4M crystal oscillator, the socket crystal frequency can be replaced at any time.
• The 4-bit independent keyboard is connected to RB0 RB1 RB2 RB3.
• 8 LEDs are connected to the RD port. When the J3 is plugged in, the LED is enabled. J3 is unplugged and the RD port is completely released.
• External 5V DC power interface (send USB power cable without additional purchase).
• ICSP programming simulation interface (can be connected to K150 PICKIT2 PICKIT3 ICD2 and other tools).
• VCC GND pin header power extension interface for access or -out of 5 volt power supplies.
• All IO ports of the MCU are easily extended by using pin headers.

Specification:

• Power supply: USB
• Temperature: DS18B20
• LCD Interface: LCD1602, LCD12864
• Board dimension: 9.2*7.2*1.7cm

Package list:

1 * Board
1 * Cable
1 * Board support