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SBC45EC - SBC with Ethernet, 3 ext. Int.-Pins, 13 digitale IO'

Modtronix Engineering
Manufacturer: Modtronix Engineering
Order no.: SBC45EC
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(Price excluding VAT: 1,00 )
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SBC45EC is a Single Board Computer (SBC) with 10Mbs Ethernet, RS232 interface, IC-Bus, 13 digital I/O-pins, 3 externa interrupt pins, free TCP/IP stack, PIC18F452 and Web based configuration. The board is fully assembled with a PIC18F452 and 24LC256 EEPROM. The SBC module can connected to every 10/100 Mbit/s Ethnernet network. The PIC18F452 controller is already programmed with the free Modtronix SBC45EC Webserver.The 24LC256 EEPROM saves the websites. With a FTP software (bzw. terminal tool like Hyperterminal) you can removed the Demo website with you own website. There is no need to reprogram the firmware of the controller and a PIC programmer.

The user can add "special tags" to the HTML websites, which will replaced through external input pins. All inputs and outputs of the SBC module can configurated and recorded about the websites. You can create and edit the websites with every conventional text editor and load them with a FTP software in the webserver about a serial cable.

The serial RS232 port of the Ethernet SBC can used for configuration and debugging of the webserver. All configuration make with the RS232 port, can also done with about the websites of the webserver.

The whole source code of the webserver you can download for free. The webserver uses the free available TCP/IP stack software from Microchip (programmed in C) and can edited with a HiTech or Microchip MPLAB C18 compiler. A free student version of the Microchip MPLAB C18 compilers is available by the manufacturer and can used as source code.

Typical application range

  • HTTP Web servers
  • Mail clients
  • Ethernet to RS232 interface
  • Ethernet to RS485 interface
  • Controls via webserver
  • Protocol Bridge applications
  • Ethernet to USART, CAN, I2C, SPI etc. interface


  • Equipped with a PIC18F452 controller, 24LC256 EEPROM and Modtronix SBC45EC webserver
  • 32kBytes FLASH, 1536 Bytes SRAM and 32kBytes EEPROM. The webserver uses less than the half then 50% of the existent FLASH and SRAM memory and ca. 25% of the existent EEPROM memory.
  • 13 programable I/O pins, from which 3 can configurated as external interupt pins.
  • red LED for link- and collision detection
  • green LED "connection display"
  • yellow LED "display send/receive"
  • RS232 interface about a 3-pin connector
  • Modular design, upgradeable with extension modules
  • Standard 2.1mm jack plug for power supply (7 - 30V DC)
  • +/-15kV ESD protection
  • ICSP (In Circuit Serial Programming) connection
  • Free Modtronix TCP/IP Stack with the following features: MAC, IP, ARP, ICMP, TCP, UDP, HTTP, FTP, DHCP, IP gleaning, MPFS
  • Supports TCP and UDP
  • RTOS idependent
The on the board existend extension connectors can used for a modular extension of the Single Board Computers. Numerous extensions and functions are possible.


Additional Addons

DatasheetDownload PDF-file
Manual Modtronix SBC45EC Webserver V2.03Download PDF-file
Source code Modtronix SBC45EC Webserver V2.03Download ZIP-file
Modtronix TCP/IP Stack V2.10Download PDF-file


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