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Mini BASIC/C-Programmable Serial-to-Ethernet Development Board US$59.00

EM500EV
Mini BASIC/C-Programmable Serial-to-Ethernet Development Board


The EM500EV development system provides for convenient testing and evaluation of the EM500 miniature Serial-to-Ethernet Module which is programmable in Tibbo BASIC and/or Tibbo C. The board features a standard RJ45 socket with 100BaseT magnetics, LEDs, reset button and a serial port. The kit ships with a 12V, 500mA switching power supply with U.S. plug.

The EM500 is the first of the Tibbo MiniMo series, designed to be mounted vertically and fit behind a standard RJ connector jack.

Miniature Programmable Serial-to-Ethernet Module Features

  • Based on a second-generation ASIC (T2000).
  • 10/100BaseT auto-MDIX Ethernet port.
  • One serial port (CMOS-level):
    • Baudrates of up to 460800bps;
    • None/even/odd/mark/space parity modes;
    • 7/8 bits/character modes;
    • Full-duplex mode with optional flow control;
    • Half-duplex mode with direction control;
    • Encoding and decoding of Wiegand and clock/data streams.
  • 512KB flash memory for firmware and application.
  • 200 bytes of EEPROM space for data storage.
  • 8 general-purpose I/O lines (including 2 interrupt lines).
  • Control lines for two external dual-function status LEDs.
  • Additional control line for a dedicated Ethernet link LED.
  • External reset source required.
  • Power: 260mA @ 3.3V (100BaseT mode).
  • "Vertical slice" construction; dimensions: 18.5 x 16.0 x 6.5mm.
  • Firmware is upgradeable through the serial port or network (including "cold start" firmware uploads through the network).

Miniature Programmable Serial-to-Ethernet Module Programming

Platform objects

  • Sock socket comms (up to 16 UDP, TCP, and HTTP sessions).
  • Net controls Ethernet port.
  • Ser controls serial port (UART, Wiegand, and clock/data modes).
  • Io handles I/O lines, ports, and interrupts.
  • Stor provides access to the EEPROM.
  • Romfile facilitates access to resource files (fixed data).
  • Pat "plays" patterns on up to five LED pairs.
  • Button monitors MD line (setup button).
  • Sys in charge of general device functionality.
  • Wln handles WiFi interface (this version of the Evaluation System does not have WiFi; see below).
  • Fd manages Flash memory file system and direct sector access (this version of the Evaluation System does not have the Flash drive; see below).

Function Groups

String functions (27 in total!), date/time conversion functions, and hash calculation functions (md5 and sha1).

Variable Types

Byte, char, integer (word), short, dword, long, real, string, plus user-defined arrays and structures.

Miniature Programmable Serial-to-Ethernet Module Documentation

Click on the blue book icon to the left of the EM500 line to open individual topics in each online manual.

View a video showing how to turn EM500 into a device server

WiFi and Flash Drive Support

If you want WiFi and SPI Flash support, purchase the EM500EV-G instead. It has a larger interface board with a 1MB SPI Flash and a plug-in WiFi module. However, its RS232 interface is limited to RX, TX, CTS, RTS (i.e. does not support DSR and DTR lines).


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This product was added to our catalog on Wednesday 30 June, 2010.

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