The Compulogic range of boards are an expandable way of providing remote control using either a UTP LAN connection or SMS control from a GSM terminal.

• Using the SMS Gateway, a digital I/O module and a GSM Terminal such as the TC35iT, you can control and monitor up to eight digital inputs.
• Use a GSM Terminal, a SMS Gateway and a Web server module, and you have a simple SMS to Web gateway.
• Use a Web server and an analogue I/O module, you can monitor temperatures from anywhere on the web.

The applications of these modules are limitless. They are simple to configure and connect. The documentation is very comprehensive, and is downloadable from this page.

Each controller (Web server or SMS gateway) module can control up to two each of the digital and analogue I/O modules. You can add more modules as required.

PicoServ Web Server Module

PicoServ is a low cost, miniature web server module featuring a fully integrated 10baseT Ethernet interface, a variety of interfaces to the ‘real world’ and EEPROM storage for 260K of web pages and other files. PicoServ provides a compact "No PC" web access solution. This device will connect to the other modules to provide Internet access control.

Program the PicoServ with a fixed IP address, connect to the web via the Ethernet interface and it can be accessed from any browser anywhere in the world. The device can be password protected, making it secure from un-authorised users. Messages can be triggered from I/O from connected modules or these modules can be interrogated using dynamic HTML pages on the PicoServ module. HTML can be fully customised to your own requirements.

• Power requirements - 6-18V DC, 40mA
• Dimensions - 70mm x 50mm x 16mm
• User file capacity - 260,096 bytes
• Maximum number of files - 64
• Host interface - via RS232 or I2C
• Interface - via I/O modules (supports up to eight)
• Network connection - via built-in 10/100 Ethernet or optional SMS gateway

PicoServ Digital I/O module


Part of the family of I/O expansion modules for the PicoServ miniature web server system, the Digital I/O Expansion Module provides a simple means of interfacing 8 digital input and 8 digital output signals to the web server or SMS modules. Real-world input or output signals connected to the expansion module are easily displayed or changed in any web browser using only simple HTML commands.

• Four logic level digital outputs capable of sinking or sourcing 25mA per output
• Four voltage free single pole changeover relay outputs rated at 1A @ 24VDC
• Eight digital inputs protected to +/- 30VDC
• Power - 6-18V DC, 28mA (relays off), 120mA (relays on)
• Dimensions - 70mm x 50mm x 16mm

PicoServ Analogue I/O Module

• Four analogue input ports which can be software (browser) configured to operate in one of three different modes
• Mode1 - 0-4V input with a 4mV resolution
• Mode2 - 0-2V input with a 2mV resolution
• Mode3 - Temperature input with a 0.2°C resolution when using a 10mV/°C sensor
• All analogue inputs have a programmable offset of +/- 9.999V or +/-999.9°C, depending on the input mode selected
• Four logic level output signals, capable of sinking or sourcing 25mA per output
• Four logic level digital inputs protected to +/- 30VDC
• Power requirements - 6-18V DC, 20mA
• Dimensions - 70mm x 50mm x 16mm

PicoServ SMS Gateway

Remote control and monitoring via GSM modems such as the TC35iT using SMS text messages for the PicoServ System. This module provides the user with the ability to monitor and control I/O on the digital and analogue modules using SMS. A version with an integrated GSM modem is also available. This module can also be used to control the PicoServ modules via the RS232 interface, where VT100 terminal emulation provides full control.

• Power requirements - 6-18V DC, 40mA
• Dimensions - 70mm x 50mm x 16mm

PicoServ Integrated SMS Module

This SMS module, used with any single I/O card allows monitoring and control of a PicoServ system using SMS from a mobile phone or automated system. Notifications can be programmed when certain events or limits occur.

• Dual band 900/1800Mhz (for European networks)
• Antenna connection - se external antenna via SMA connector
• 16 GSM numbers can be programmed, including variable data fields, simultaneously or at programmed intervals
• Trigger conditions - as other PicoServ parameters ( =, !=, <, >, <=, >= )
• Trigger qualify time - 0-9999 seconds
• Trigger re-qualify time - 0-9999 minutes or re-arm from a remote command
• Power requirements - 6-18V DC, 45mA average, 2A peak
• Dimensions - 70mm x 50mm x 16mm