8951 Microcontroller Board

General description

The ELC8951 is a single board microcomputer for general use based on ATMEL AT89C51AC3 compatible at object code level with all the Micro of the 8051 INTEL family. This card is aimed at designers, technicians, hobbyists and students.

The ELC8951 can easily interact with external devices by receiving and processing digital and analog signals from sensors and transducers and can operate relays, lights, motors and any other actuator with electrical activation. The code for the ELC8951 board can be developed using, in addition to the numerous development tools available on the market and on the network for the 8051 family, also the well-known BASCOM-8051 compiler from MCS Electronics.

Excellent standard C cross-compilers with integrated IDE are also available, such as the READS51 from RIGEL or the MIKROC PRO from MIKROELEKTRONIKA, a very advanced compiler for the 8051 family. The integrated IDE BASCOM-8051 system allows program development, test and debug of the same with the integrated simulator and finally the transfer of the final program in the FLASH of the Micro via RS232C or USB serial port.

The automation, supervision and control systems based on the Micro of the 8051 family and developed in the IDE environment

The automation, supervision and control systems based on the Micro of the 8051 family and developed in the BASCOM-8051 IDE environment are not limited to the amateur and hobby field but extend to professional applications, as evidenced by the numerous application examples available on the net.

Taking advantage of the considerable diffusion of the 8051 family and the relative large quantity of application software and public domain libraries, it is possible to create even complex projects, minimizing time and costs; it is also possible to assemble target boards containing only a Micro of the 8051 family and the few components strictly necessary for the specific application, on which the software developed with the ELC8951 will be loaded.

The ELC8951 board is supplied fully assembled and tested, only the printed circuit is available on request.

Being able to take advantage of the considerable diffusion of the 8051 family and the relative large quantity of application software and public domain libraries, it is possible to create even complex projects, minimizing time and costs; it is also possible to assemble target boards containing only a Micro of the 8051 family and the few components strictly necessary for the specific application, on which the software developed with the ELC8951 will be loaded.

The ELC8951 board is supplied completely assembled and tested, only the printed circuit is available on request.

Technical data

ATMEL CPU AT89C51AC3 PLCC 52
Clock frequency 29.4912 MHz
Standard 8051 family processor language
Internal Program FLASH memory 64 kBytes
Internal RAM memory 256 Bytes
Internal ERAM memory 2 kBbytes
Internal EEPROM memory 2 kBytes
5 parallel ports for a total of 32 programmable digital I / O lines
8 analog channels A / D converter with 10 bit 0-3 V resolution
3.00 V reference voltage generator for adjustable precision ADC
3 programmable 16-bit timers
1 parallel port for LCD display with LED lighting
Potentiometer for LCD contrast adjustment
1 RS232C port for downloading programs from PC with software ISP control
1 RS232C port for connection to PC, Modem or other serial devices
1 SPI high speed serial communication channel
4 signaling LEDs: 12V and 5V power supply, TXD line and RXD line of the serial port
RESET and manual enabling buttons for FLASH programming
Power supply: 7 .... 14 V AC / DC not regulated or 5.00 V DC stabilized
Bridge rectifier, filter capacitor and on-board linear regulator
Stabilized voltage output 5.00 V 500 mA for powering external modules
Board size: 100 x 80mm