BASIC Stamp 2pe Motherboard

  • 28300: BASIC Stamp 2pe Motherboard
  • 28300: BASIC Stamp 2pe Motherboard Alternate View
  • 28300: BASIC Stamp 2pe Motherboard Alternate View
In Stock: 72
Product ID 28300


Parallax's BASIC Stamp 2pe Motherboard provides a compact, professional-grade platform for BASIC Stamp applications. With the MoBoStamp-pe and an assortment of plug-in daughterboards, users can easily develop systems requiring more processing power than a BS2 alone can provide.

The MoBoStamp-pe includes a USB interface for programming and debugging on an attached PC. The motherboard can either be powered by the USB connection or for portable applications, the motherboard can be powered through an attached daughterboard and external power source.

Interfacing to the outside world is possible using the two daughterboard sockets. Compatible plug-in daughterboards perform a variety of functions for data acquisition, light sensing, and display output. The PWR-I/O-DB card, for example, provides an interface for up to six Parallax serial (three-pin) devices and/or servos and provides separate voltage regulation and filtering on the daughterboard.

The MoBoStamp-pe motherboard includes two Atmel AVR microcontrollers (ATtiny13); one for each daughterboard socket. These microcontrollers act as coprocessors used to offload computationally intensive tasks from the BASIC Stamp. This allows a higher level of performance while retaining the BASIC Stamp's legendary ease of use. Best of all, it is not necessary to write additional code for the coprocessors. Parallax already offers a library of upload-able AVR code to handle the specific needs of each daughterboard, allowing the user to concentrate more on PBASIC programming. Right out of the box, both AVRs come preloaded with firmware for digital I/O, pulse-width modulated (PWM) output, analog input, and frequency measurement. And changing the firmware is easy with the LoadAVR.exe PC program, available for download below. Advanced users can create custom AVR code with Atmel’s free AVR Studio development environment.     

Key Features:

  • BS2pe BASIC Stamp chip for ease of use and high performance  
  • Two sockets for plug-compatible daughterboards  
  • Onboard power select jumpers allow use of USB or external (6 to 9 VDC) power supply


  • Compact size: 2.75" x 1.35" (69.9mm x 34.3mm)  
  • Built-in USB port: mini-B connector
  • Multiple Vdd levels: 3.3 VDC and 5VDC, jumper selectable
  • Power consumption as low as 18 mA
  • Voltage requirements: Powered by USB or external (6 to 9 VDC) power supply
  • Communication: Built in USB interface for programming and communication
  • Dimensions: 2.75" x 1.35" (69.9mm x 34.3mm)

Note: MoBoStamp-pe Motherboard comes with the following hardware: 3/16” dia. x 5/16” Threaded Standoffs (qty. 4), 4-40 x 3/16” Panhead Machine Screws (qty. 8), and 2mm Jumpers (qty. 3). 

Downloads & Documentation

Download Details More Info
BASIC Stamp 2pe Motherboard Documentation - 397.71 KB | updated: 09 Sep 2013 - 12:26 pm
Motherboard AVR Firmware GPIO Object Hex Files - 976 bytes | updated: 09 Sep 2013 - 12:42 pm
BASIC Stamp 2pe Motherboard Dimensions - 29.13 KB | updated: 09 Sep 2013 - 12:30 pm
Motherboard LoadAVR Coprocessor Loader Program - 1.3 MB | updated: 09 Sep 2013 - 12:43 pm
BASIC Stamp 2pe Motherboard AVR Firmware GPIO Documetation - 193.52 KB | updated: 09 Sep 2013 - 12:38 pm
Motherboard Standalone USB Power Application Note - 247.94 KB | updated: 09 Sep 2013 - 12:35 pm