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SBC28DC US$27.95

Compact Single board computer for 28 pin PIC with RS232 interface, fully assembled. CPU not included. Quantity discounts up to 30% available, for details click here.
Product Datasheet in PDF format (26 April 2005)     (Click here for archived documentation)

  Description   Features
  Expansion   Details
  Application Notes and Source Code   Buy Online

 Description

The SBC28DC is a single board computer for 28 pin PIC microcontrollers. It has a RS232 serial interface that is available via a standard 9 pin D-Sub, male connector. Some examples of 28 pin DIP PIC chips that this board is designed for (There are many more!):

  • PIC18F23K22, PIC18F24K22, PIC18F25K22, PIC18F26K22
  • PIC18F242, PIC18F252, PIC18F248, PIC18F258
  • PIC18F2320, PIC18F2410, PIC18F2680 (CAN BUS), PIC18F2550 (USB)
  • PIC16F870, PIC16F873(A), PIC16F876(A)
  • PIC16C63, PIC16C66, PIC16C73(A), PIC16F73, PIC16C76, PIC16F76
Most other 5V, 28 pin PIC chips will also work, as long as their power, reset(MCLR) and oscillator pins are situated in the same place as the chips listed above.

By default these boards don't have a crystal assembled. A Crystal is not required seeing that all PIC chips have built in crystals. Typically the built in crystal is 4MHz or 8MHz. If a higher or special clock rates is required, it can be selected via the options below. For example, if this board is going to be used to communicate at a standard BAUD rate (9600, 19200, 38400, 57600, 115200...), then the 18.432MHz crystal should be selected below. With this crystal, the exact BAUD rate can be obtained with 0% error.


 Features
  • 22 I/O ports when using common PIC chips, for example the PIC16F876A or PIC18F252.
  • Is part of our MicroX product range, and has a Frontend and Compact Daughter board connector for expansion. For details see oldsite.modtronix.com/microx.
  • Compact size of 58mm x 54mm. For details see oldsite.modtronix.com/microx/dimensions.
  • Assembled with High Quality, Industrial Temperature components - electrolytic capacitors used are extra long lifetime rated!
  • Diode protected 2.1mm power connector for a standard DC transformer.
  • Wide operating voltage range from 7 – 30V. It is recommended to use a 7.5V or 9V DC power supply.
  • On board 15kV ESD protected RS232 interface. Assembled with industrial temperature range interface driver chip.
  • Standard 9 pin, D-Sub male connector with RS232 signals, ground and external power.
  • The power pin (pin 9) on the D-Sub connector can be connected to the boards unregulated power supply (the input of the 2.1mm power connector) via a jumper. This can be used to obtain power for this board. When used, no power has to be supplied via the 2.1mm power connector. It will obtain it's power via the D-Sub connector.
  • Power LED to indicate when device is powered.
  • Micro Match socket with Power, I2C and SPI signals. The Micro Match connector can be used to daisy chain multiple I2C devices together, like our LCD2S Serial LCD displays with keyboard decoder. For details, click here.
  • Has an ICSP (In Circuit Serial Programming) connector (ICPC1 type) - CPU can be programmed in circuit. For details see Programming Modtronix PIC based boards.

 Expansion

The SBC28DC's Daughter and Frontend Connectors can be used as expansion ports to add additional functionality. It contains all free CPU port pins, power, I2C, SPI, RS232 signal,..... For further details about the Daughter and Frontend Expansion Port, see oldsite.modtronix.com/microx/expansion.


The SBC28DC can be used as a daughter board on the following boards currently available from Modtronix Engineering:
  • IOR5E - Input-Output-Relay Board with enclosure
  • PT10E-ASM - Prototype Board with enclosure
  • PT24E-ASM - Prototype Board with enclosure

The following Daughter Boards for the SBC28DC are currently available from Modtronix Engineering:
  • DEV7TC - Seven Segment Display Daughter Board
  • MXD1CAN - CAN Bus Driver Daughter Board
  • MXD2R - Input/Output/Relay Daughter Board
  • PT01TC-ASM - Daughter Prototype Board

The following Frontend Boards for the SBC28DC are currently available from Modtronix Engineering:
  • IOR44-222 - 2 Input, 2 Output, 2 Relay Frontend Board
  • IOR44-42 - 4 Input, 2 Relay Frontend Board
  • IOR44-241 - 2 Input, 4 Output, 1 Relay Frontend Board
  • SER2S - Sub-D Connector Frontend Board
  • IO8S - 8 port Analog/Digital I/O Frontend Board
  • PTO1FC-ASM - Compact Frontend Prototype Board

The following I2C devices can currently be connected to this board via it's Micro Match connector:
  • Serial 16x2 LCD Character Displays - Serial LCD displays with keypad encoder and user I/Os
  • Serial 20x4 LCD Character Displays - Serial LCD displays with keypad encoder and user I/Os

Additionally, users can download PCB templates for creating their own Frontend expansion boards from our Downloads page.

 Details, Schematics and Partlist
Product Datasheet in PDF format (updated 26 April 2005)

 Application Notes and Source Code
  Web Page PDF File
CAN Application notes From Microchip.  
Programming Modtronix PIC based boards  
  • For additional info, please see our user forum.

 Buy Online
This product consists of:
  • SBC28DC SBC Main Board, fully assembled. As shown in
The following is NOT included, and can be added below as "Available Options":
  • PIC Microcontroller
  • Crystal - For details see description above
Select desired options, and then click on Add to Cart icon below!
Available Options:
Crystal Assembled:
Frontend Sockets (info):
PIC CPU included:
Printed Documentation:
This product was added to our catalog on Thursday 31 August, 2006.
Reviews
Please note, this is our OLD SITE!!!! It should be used for reference only!
To purchase product, please go to our new site at www.modtronix.com!
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Please note, this is our OLD SITE!!!! It should be used for reference only!
To purchase product, please go to our new site at www.modtronix.com!