Let's Make Robots!

BS2sx BULK (Homemade BS2sx Project)

Since the price for the BASIC STAMP microcontroller line is very pricy, I have decided to create my own BASIC STAMP OEM Design. It is the same circuit as the BS2sx but will cost under $20.

 


 

BASIC Stamp 2SX OEM Module Kit

This kit enables me to program the PBASIC interpreter chip and EEPROM chip (both are DIPs)

Price: $39.99

This kit contains the following.

  • PC board
  • PBASIC2sx Interpreter
  • 16 Kbyte EEPROM
  • 50 MHz resonator
  • DB-9 serial connector
  • 5-volt regulator, resistors, transistors, sockets and SIP pins

Some of the features of this kit are:

  • Assembled form factor is a 20-pin SIP (0.1" spacing).
  • PC board includes labeled component locations with visible traces between parts.
  • PBASIC interpreter and EEPROM chips are socketed to allow easy replacement.

The Circuit For the Kit

BASIC Stamp 2sx OEM Schematic

 

All in all, this will make a nice programing board

 


My Design is quite similair to this. Except that the I/O pins connecting to the serial connector won't be connected to anything. And instead of pins, I will use terminal blocks for easy hook ups for experimentation and for robotic use.


PARALLAX PART LIST

 

50 MHz Resonator

http://www.parallax.com/Store/Components/ResonatorsCrystals/tabid/153/CategoryID/53/List/0/SortField/0/Level/a/ProductID/360/Default.aspx

 

BS2sx interpreter chip

http://www.parallax.com/StoreSearchResults/tabid/768/txtSearch/Pbasic2sx/ProductID/15/Default.aspx

 

16 Kbyte EEPROM

http://www.parallax.com/StoreSearchResults/tabid/768/List/0/SortField/4/ProductID/25/Default.aspx?txtSearch=dip+eeprom

5V LDO Voltage Regulator

http://www.parallax.com/StoreSearchResults/tabid/768/List/0/SortField/4/ProductID/242/Default.aspx?txtSearch=5v+regulator

If link dosn't work, copy and paste into your web browser.

COMMON PARTS

  • 10 uf electrolyte capacitor
  • 10k ohm resistor
  • 220 ohm resistors
  • terminal blocks
  • Solderable Breadboard
  • DIP sockets

However, this is still in the designing phase. I hope to have a fully capable microcontroler soon, and to be able to incorperate it in many of my project.

 

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the answer is the oem kit. it comes with a serial connector peice. That is why it is my programing board. Sorry for the confusion.

unless I misunderstand, how will you program it without serial pins attached.