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Miniature BASIC/C-Programmable Serial-to-Ethernet Module US$29.00

Miniature BASIC/C-Programmable Serial-to-Ethernet Module

The EM500 is the first of the Tibbo MiniMo series of embedded Ethernet modules which are programmable in Tibbo BASIC and/or Tibbo C. Designed to be mounted vertically and fit behind a standard RJ45 connector jack, MiniMo devices reduce the required board space to only 18.5 6.5mm. That's 0.72 0.62".

The EM500 module features a 10/100-Base/T Ethernet interface, a serial port, and 8 digital I/O lines.

The width and height of the EM500 are very close to those of a standard jack. You can think of the EM500 as a 6.5mm-thick fully independent extension of the jack.

The EM500 is a miniature stand-alone BASIC-programmable embedded module designed to be used in combination with any standard LED/magnetics RJ45 jack (not included; see add-on option below). The combined footprint of the EM500 and a standard RJ45 jack is only 28.5 18.5mm.

The module's hardware mix, which includes 10/100-Base/T Ethernet, a serial port, and 8 I/O lines, has been carefully tailored to address the basic needs of lightweight network-enabled control devices.

Compact dimensions, space-saving "vertical slice" mechanical design, low power consumption, and innovative dual-function LED control lines make the module an excellent fit for miniature, cost-sensitive designs.

The EM500 also supports Wi-Fi communications (using the GA1000 add-on board) and Flash disk (requires an external SPI Flash IC).

The EM500 can be ordered standalone or in combination with an industry-standard RJ45 jack (use option checkbox below) and/or all discrete components required to complete the circuit; see the EM500EV (full RS232) and the EM500EV-G (WiFi, Flash drive, limited RS232).

Wiring Diagram

Miniature Programmable Serial-to-Ethernet Module Features

  • Based on a second-generation ASIC (T2000).
  • 10/100BaseT auto-MDIX Ethernet port (no magnetics).
  • One serial port (CMOS-level):
    • Baud rates 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).
  • Optional Wi-Fi interface (requires GA1000 add-on module).
  • Optional Flash disk (requires an external SPI flash IC).

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 Wi-Fi interface (requires GA1000 add-on module).
  • Fd manages flash memory file system and direct sector access (requires an external SPI flash IC).

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 purple 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

Optional Recommended Products for this Item
Ethernet Connector and Magnetics for EM500+ US$3.00
Wi-Fi Add-On Board for Tibbo Serial-to-Ethernet Modules+ US$34.00
Internal Antenna Adapter Cable, U.FL to RP-SMA+ US$9.50
External Wi-Fi (IEEE802.11) Antenna, RP-SMA+ US$8.00

This product was added to our catalog on Friday 07 May, 2010.


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