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Basic Stamp Applications

Printed Circuit Board for Homebrew Basic Stamp BS2 and BS2E and BS2sx

Basic Stamp BS2 OEM Module (Kit Form) is available from Parallax at $29.99 / kit.

Basic Stamp BS2E is not available as OEM module from Parallax.

Basic Stamp BS2sx OEM module in kit form may be obtained from Parallax at $39.99

Peter H. Anderson offers a homebrew BS2 on a protoboard for $24.95 in kit form and $34.95 assembled.

In the webpage WeetHet a homebrew BS2 based on the original design by P. H. Anderson is disccussed. The page includes detailled component list and description, a drawing to aid assembly and another drawing indicating the voltages that should be measured at various points of the circuit.

Based on the above information 2 one-layer printed circuit boards have been designed. The one for the BS2 is 52.5mm by 60mm and may actually be used both for BS2 and BS2E and BS2sx.The other one for BS2E and BS2sx is more compact; 45mm by 60mm. Both boards include a 5.0 Volt regulated voltage supply and a DB9 serial port connector.

The component list for BS2 is the same as given by P.H.Anderson and Hans Luijten in his webpage WeetHet with a few additions :

(*)    With a Crystal use the two 20 pFd capacitors, with a resonator use an 10K resistor. (See component layout below.)

For BS2E the componenet list is as follows :

The Parallax Interpreter Chips have to be obtainned from Parallax.They contain the PBASIC interpreter and are marked with a white dot at the lower left corner. Chips obtainned from any other source will not work.
PBasic2/P is $16.99 and PBasic2E/P is $12.99 in single unit quantities.

BS2 Component Layout

BS2E Component Layout

BS2SX Component Layout


Controlling LCDs with Basic Stamp








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Homebrew Basic Stamp 2

A Low Cost Alternative

DESCRIPTION :

This is a fully assembled and tested unit including everything less the Parallax PBasic interpreter chip 16C57C which is,as mentined adove, $11.95 in sigle unit quantities. It includes the rugged voltage regulator LM2940. All IC's are socketed to allow for replacement. All you need to do is to plug in the Parallax PBasic interpreter chip for it to become a fully functional Basic Stamp module.Please note that pin configuration is different than the Parallax OEM module. See the component layout link above.





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Homebrew Basic Stamp BS2E / BS2SX

A Low Cost Alternative

DESCRIPTION :

These are fully assembled and tested units including everything less the Parallax PBasic interpreter chip SX28AC which is,as mentined adove, $12.95 in sigle unit quantities. Please note that interpreter chips for BS2E and BS2SX are different. It includes the rugged voltage regulator LM2940. All IC's are socketed to allow for replacement. All you need to do is to plug in the Parallax PBasic interpreter chip for it to become a fully functional Basic Stamp module.Please note that pin configuration is different than the Parallax OEM module. See the component layout links above.





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General Purpose Display for BS2
Jumbo Size LED Displays (20mm x 27.5mm)
Two position Decimal Point Functional

DESCRIPTION :

This unit was originally designed as a cockpit repeater for my Azimuth compass in my boat. It may be used as repeater for any NMEA data outputing instrument. However, it is in fact a general purpose display. Just plug in the back a BS2 module (to be ordered separately) and it will display any value input to pin0 by another BS1/BS2 module or any data input to pin1 by a NMEA data outputing instrument.It is conveniently compact to go into a case. Dimensions: 86 x 64 x 22 mm.

Back and Side View (with BS2 module)

PCB

Component Layout and Component List

Sample Code


Contact For Further Information



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Last updated on February 26,2011

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