GSAS 51E Microcontroller Trainer

The GSAS 8051 Trainer Kit is a microcontroller training system designed for engineering colleges and technical training institutes. Built around the 8051 microcontroller, this trainer provides everything needed to teach and learn the fundamentals of embedded systems programming, from basic port I/O to interrupt handling, timer programming, serial communication, and peripheral IC interfacing. The trainer requires an external power adapter (+5V @ 3A) and supports USB and RS232 (optional) serial communication.

The trainer includes a 20x4 LCD for character display interfacing and integrates peripheral ICs, the 8155 (RAM + I/O + Timer), 8255 Programmable Peripheral Interface, 8253 Programmable Interval Timer, and a Keyboard Controller UPI, providing a comprehensive platform for peripheral IC programming exercises.

GSAS provides a structured lab manual covering all standard 8051 experiments aligned with Indian university curricula, including assembly language programming, C programming with Keil, timer/counter applications, serial communication, and peripheral IC interfacing (8155, 8255, 8253, Keyboard Controller UPI). The trainer has been adopted by engineering colleges across India as a reliable, cost-effective platform for microcontroller education.

On-Board Peripherals

Peripheral	Purpose
8155	RAM + I/O + Timer, memory-mapped peripheral interfacing
8255 PPI	Programmable Peripheral Interface, 3 ports of parallel I/O
8253 PIT	Programmable Interval Timer, 3 independent 16-bit counters
Keyboard Controller UPI	Keyboard/display controller interfacing
20x4 LCD	Character display interfacing, command/data protocol
Serial Port	USB, RS232 (Optional)

Lab Experiment Coverage

Experiment Category	Topics
Assembly Programming	Data transfer, arithmetic, logical operations, branching
C Programming	Keil C51, port I/O, bit manipulation
Timers/Counters	Delay generation, event counting, PWM
Interrupts	External interrupts, timer interrupts, priority handling
Serial Communication	USB, RS232, PC data exchange
Peripheral IC Interfacing	8155, 8255, 8253, Keyboard Controller UPI

Why GSAS

GSAS manufactures the 8051 Trainer Kit in Bangalore and has supplied it to engineering colleges across India for over two decades. Institutions benefit from volume pricing for lab deployments, structured lab manuals aligned with university syllabi, and direct technical support from the GSAS education products team. Replacement parts and accessories are available from stock, ensuring minimal downtime in active teaching laboratories.

Products are available for immediate purchase through the GSAS online store (“Buy on Store”) or through direct engagement for institutional and volume orders (“Request Volume Pricing”).