ESA 196 trainer is based on Intel's 80C 196 KB/KC microcontroller. ESA 196 trainer can be used as a flexible instructional aid in academic institutions and as a powerful development kit in R & D labs. ESA 196 can be used in realtime event control, motor control, high speed input / output operations and also in instrumentation.

Intel's MCS-51 family of microcontrollers is increasingly becoming popular for instrumentation and control applications due to its speed and powerful instruction set which are essential for realtime applications. This has created the need for a good trainer and development tools. ESA 31 provides complete solution for this requirement. It can be used as a flexible instructional aid in academic institutions and a powerful development kit in R&D Labs.

8051 family Microcontroller Trainer with on-board provision to interface optional LCD & PC keyboard. Intel's MCS-51 family of microcontrollers and its derivatives are increasingly becoming popular for instrumentation and control applications due to its speed and powerful instruction set which are essential for real-time applications. This has created the need for a good trainer and development tools. ESA 51 (an advanced version of ESA 31) provides complete solution for this requirement. It can be used as a flexible instructional aid in academic institutions and a powerful development kit in R&D Labs. ESA 51 has on-board DAC, ADC (optional) and parallel printer interface. The system firmware provides keyboard monitor, serial monitor, single line assembler, disassembler and drivers for EPROM Programmer and parallel printer interfaces. ESA 51 is supported with comprehensive and user-friendly documentation.

ESA MCB51 is a development board and supports a wide variety of 8051 (with on chip ROM) compatible 8-bit microcontrollers. The 8051 family of microcontrollers are extensively used for embedded and real-time applications. ESA MCB51 is designed to be a general purpose development board for single chip MCU applications.
ESA MCB51 development board is built around Atmel AT89C51ED2 / RD2 microcontroller which has 64K bytes of on chip program memory.

ESA 68 is an extremely powerful Microprocessor trainer based on the popular Motorola 6809 eight bit microprocessor. It can be used as a flexible instructional aid in academic institutions and R&D labs.

68000 based Microprocessor Trainer with Intel Peripherals.

ESA 68K-2 Trainer is a powerful and cost-effective single-board microcomputer based on Motorola 68000 CPU supported by Motorola peripheral chips. ESA 68k-2 is a valuable aid for teaching in academic institutions, software and hardware development in research institutions and R&D labs.

ESA 86/88-2 is a powerful ,general purpose microcomputer trainer which can be operated either with 8086 CPU or 8088 CPU. It is usually supplied with 8086 CPU. To install 8088 CPU, user has to just remove the 8086, install 8088 and set a DIP switch. In either case, the CPU is configured for operating in the Max. mode. On-board provision exists for installing 8087 Numeric Data Processor. The system is versatile and can be configured in a variety of ways via jumper options, to suit specific user requirements. The basic system can be easily expanded through the System Bus connectors. 32K Bytes of powerful firmware provides keyboard monitor, serial monitor, single-line assembler, disassembler and driver programs for Centronics compatible parallel printer interface. The software for the optional PROM programmer interface and audiocassette interface is also included in the firmware. ESA 86/88-2 is supported with comprehensive and user-friendly documentation.

Advanced version of ESA 86/88-2 Microprocessor Trainer with on-board provision to interface optional LCD & PC keyboard. ESA 86/88-3 is an advanced version of our popular model ESA 86/88-2. It is a powerful, general purpose microprocessor trainer which can be operated either with 8086 CPU or 8088 CPU with a clock frequency of 8MHz in maximum mode. It is versatile and can be configured in a variety of ways via jumper options, to suit specific user requirements. The basic system can be easily expanded through the system bus connectors. User can have full 1MBytes of addressable memory. 128K Bytes of powerful system firmware provides keyboard monitor, serial monitor, single-line assembler, disassembler and driver programs for parallel printer interface. The software for the optional PROM programmer interface is also included in the firmware.

This interface provides 16-channel, 8-bit ADC facility based on 0806 - a 16 channel 8 bit data acquisition device. Provision is made for on-board reference voltage generation using precision voltage regulator uA 723. The interface has 20 pin terminal strip for feeding in the analog voltages. The input signal voltage range is 0-5V.

8 Channel 12 Bit ADC Interface without MUX.

This interface is based on Analog Devices' 12-bit, 10 microsec sampling ADC AD-1674 which has a built-in sample and hold amplifier too. The ADC accepts Unipolar (0-10V) or Bipolar (+/- 10 or +/-5) signal inputs. An optional 8 channel multiplexer (ADG 508 or equivalent) can be added by the user if required (socket provided). Provision is made to configure any channel to accept current (4 - 20mA) or voltage signals.

This interface consists of two 8-bit D/A converters whose current outputs are converted to voltage outputs using operational amplifiers. These voltage outputs are available to the user. The inputs to the DACs can be controlled through two ports.

This interface provides a four digit 7-segment display driven by the output of four cascaded shift registers. Data to be displayed is transmitted serially (bit by bit) to the interface. Each bit is clocked into the shift registers by providing a common clock through a port line. Thus one port line provides the data and another port line provides the clock.

This interface consists of an integrator and a comparator. A port line can be used to control a CMOS analog switch to reset the integrator, another port line can be used to control another CMOS analog switch to allow the integration of an analog input ( the duration of integration is controlled by user software) and yet another port line can be used to control another CMOS analog switch to allow the integration of standard reference voltage ( the duration of which can be measured by user software). The integrator output is fed to a comparator and the comparator output, in turn can be sensed through a port line. Offset trimming provision is available for the integrator and comparator.

This interface simulates the control and operation of an elevator. Four floors are assumed and for each floor a key and corresponding LED indicator are provided to serve as request buttons and request status indicators. The elevator itself is represented by a column of ten LED's. The motion of the elevator can be simulated by turning on successive LED's, one at a time. The delay between turning off one LED and turning on next LED can simulate the "speed" of the elevator. User can read the request status information through one port reset indicators through a second port and control the elevator (LED column) through a third port.

This interface provides a calculator type keyboard consisting of the keys 0 to 9,+,-,*,/,=,%,.., C, CE and two spare keys .These keys are arranged in a 3 * 8 matrix. The row lines can be driven by a port and the column lines can be sensed through another port.

This interface consists of eight TTL buffered outputs and eight TTL buffered inputs.The logic state of each input/output is indicated by a corresponding LED (ON/OFF). The inputs can be read through one port and the outputs can be controlled through another port. The inputs and the outputs are brought to berg-pins. Two Dip-Switches SW1 and SW2 are also provided. SW1 is used to connect the output status to the corresponding input line when switch is ON. SW2 is used to set different logic states by setting the switch to ON (or) OFF.

LCD (16x1) Interface.

This interface consists of a transistor and a speaker. The transistor is driven by a port line and the transistor in turn amplifies the signal and drives the speaker. By controlling ON/OFF periods of the port line through software, user can generate the required musical note. Sample programs are provided to generate a variety of musical notes.

Opto Isolated Input Interface.

Opto Isolated Output Interface.

Relay Output Interface.

This interface is based on MSM 5832 real-time clock/calendar (RTC) chip which can be interfaced to the programmable peripheral interface 8255A. The RTC is backed up by a battery, allowing it to retain all the RTC information even if the power is switched off.

This study card is designed to explain all the features of 8251 and 8253 peripherals.

This study card is designed to explain all the features of 8255.

This interface consists of a stepper motor ( +12V/ +5V DC,3 Kg. Cm torque), Power Supply and required driver circuitry along with the necessary software to control the operation of the stepper motor. This interface permits ON/OFF control of the individual coils of the stepper motor at varying speeds in either direction.

This interface simulates the control of traffic lights at a traffic island. In each of the four directions (North, South, East, West) LED indicators Left, Right, Straight, Amber, Red, Pedestrian (Red/Green) are provided. These 24 LEDs are controlled through 24 port lines of 8255.

Crystal Clock Divider Interface.

MPS 85-3 is an enhanced version of our popular model MPS 85-2 based on the processor 8085. It is a versatile microprocessor trainer used as an instructional aid in colleges and universities. It is a complete single board microcomputer used for software and hardware development in research institutions and R&D labs.