Lot of 3 Parallax BS2-IC BASIC Stamp 2 Rev F Microcontroller Module Used

Condition

These Parallax BASIC Stamp 2 (BS2-IC) microcontroller modules, Revision F, are in Excellent Used Condition (EUC). They were removed from fully operational equipment in a university laboratory environment and have been confirmed functional.

Overview and Primary Function

The BASIC Stamp 2 is a compact, self-contained programmable microcontroller module that integrates processor, clock source, memory, and voltage regulation onto a single small PCB. It employs the PBASIC programming language, enabling straightforward development of embedded control applications without the need for complex assembly or C toolchains. Revision J modules carry an industrial temperature rating, enhancing reliability for demanding or legacy applications.

Intended Applications

• Educational platforms and laboratory instruction in electronics and embedded systems

• Rapid prototyping of control, automation, and monitoring solutions

• Interfacing with sensors, motors, relays, keypads, serial devices, and indicators

• Robotics, hobby electronics, and data-logging projects

• Maintenance and repair of legacy BASIC Stamp-based industrial or commercial equipment

• Light industrial control and monitoring tasks benefiting from the extended temperature specification

Technical and Functional Specifications

• Part Number / Catalog Number: BS2-IC

• Revision: F (industrial-rated)

• Processor Speed: 20 MHz

• Program Execution Speed: Approximately 4,000 PBASIC instructions per second

• RAM: 32 bytes (6 bytes for I/O functions; 26 bytes available for variables)

• Non-Volatile Program Memory: 2 KB EEPROM (stores approximately 500 PBASIC instructions)

• Input/Output: 16 general-purpose I/O pins plus 2 dedicated serial pins

• Power Requirements: 5.5 VDC to 15 VDC (Vin pin with onboard regulation) or regulated 5 VDC (Vdd pin)

• Current Draw: 3 mA typical operation; 50 µA sleep mode (at 5 VDC)

• I/O Current Capability: 20 mA source / 25 mA sink per pin (subject to bank limits)

• Programming Interface: Serial at 9600 baud using the free Parallax BASIC Stamp Editor software (Windows, macOS, and Linux compatible). Requires standard serial cable or USB-to-serial adapter.

• Physical Dimensions: 1.20 in × 0.63 in × 0.15 in (30.0 mm × 16.0 mm × 3.81 mm); 24-pin DIP-style module form factor

• Operating Temperature Range: −40 °C to +85 °C

• Additional Features: Onboard ceramic resonator clock, power regulation, reset circuitry, and support for 42 PBASIC commands (timers, serial communication, PWM, and related control functions)

Additional Information

These modules provide a practical opportunity to acquire genuine industrial-grade Parallax BASIC Stamp 2 components in a convenient lot of three. Comprehensive documentation, example code, and extensive community resources are freely available from Parallax, Inc.