How to Use BASIC Stamp 2e: Examples, Pinouts, and Specs

The BASIC Stamp 2e (BS2E-IC), manufactured by Parallax, is a versatile microcontroller module designed for easy programming and control of electronic devices. It features a built-in interpreter for the BASIC programming language, making it an excellent choice for beginners, hobbyists, and educators. The module is compact, reliable, and capable of handling a wide range of applications, from robotics to home automation.

• Robotics control systems
• Home automation projects
• Data acquisition and logging
• Prototyping and educational purposes
• Industrial control systems

The BASIC Stamp 2e is a powerful yet user-friendly microcontroller module. Below are its key technical specifications:

The BASIC Stamp 2e module has 24 pins, with the following configuration:

The BASIC Stamp 2e is designed for ease of use, even for beginners. Follow these steps to get started:

• Connect the VDD pin to a regulated 5V DC power supply.
• Connect the VSS pin to the ground of the power supply.

• Install the Parallax BASIC Stamp Editor software on your computer (available on the Parallax website).
• Connect the module to your computer using a serial cable or USB-to-serial adapter.
• Write your program in PBASIC and upload it to the module using the Stamp Editor.

• The 16 I/O pins (P0-P15) can be configured as either input or output in your PBASIC code.
• Example: To set P0 as an output and turn it on, use the following PBASIC code:

  ' Set P0 as an output
  DIRS = %0000000000000001  ' Binary representation; P0 is output, others are input
  OUT0 = 1                  ' Set P0 high (turn it on)
  

• Connect sensors or actuators to the I/O pins, ensuring they are within the voltage and current limits.
• Use pull-up or pull-down resistors as needed for proper signal conditioning.

Here is an example PBASIC code to blink an LED connected to P0:

' BASIC Stamp 2e LED Blink Example
' Connect an LED to P0 with a 220-ohm resistor in series.

DO
  HIGH 0          ' Turn on LED connected to P0
  PAUSE 500       ' Wait for 500 milliseconds
  LOW 0           ' Turn off LED
  PAUSE 500       ' Wait for 500 milliseconds
LOOP

• Avoid exceeding the current limits of the I/O pins (20 mA per pin).
• Use external transistors or relays to drive high-current devices like motors.
• Ensure proper grounding to avoid noise or erratic behavior.

Q: Can I use the BASIC Stamp 2e with an Arduino?
A: Yes, the BASIC Stamp 2e can communicate with an Arduino via serial communication. Use the SEROUT and SERIN commands in PBASIC to send and receive data.

Q: How do I expand the I/O capabilities of the BASIC Stamp 2e?
A: You can use I/O expanders like the MCP23017 or shift registers to increase the number of available I/O pins.

Q: What is the maximum cable length for serial communication?
A: For reliable communication, keep the cable length under 15 meters (50 feet) for RS-232 connections.

Q: Can I use the BASIC Stamp 2e for battery-powered projects?
A: Yes, the module has low power consumption and can operate on batteries. Use a 5V regulator if the battery voltage exceeds 5V.

By following this documentation, you can effectively utilize the BASIC Stamp 2e in your projects. For additional resources, visit the Parallax website.