computer interfacing tutorial-printer, serial, game, usb port
 

 

CALS2000 - Electronics Lab w/ Computer Interface

 

 

 

 

The CALS-2000 ™ is a patented revolutionary Computer Aided Learning System for your Windows-based computer that uses magnetic sockets to hold components on conductive paths! Just hook up your existing computer and printer to the CALS-2000 ™ and you are on your way to learning circuit building and understanding how different components function. The computer’s audio system is used as an oscilloscope and spectrum analyzer. Other features include three-level logic-state indicators, speaker and earphone jack, 9 volt, 5 volt, and -9 volt DC power supplies, serial communication port, 8” x 10” work area for large experiments, complete instructions for all experiments on CD, and two variable resistor controls. Load in the CD and you have over 500 experiments, including the construction of a complete AM radio station. CALS comes with full glossary for every word used and calculators for resistor color codes, time constants, Ohm’s Law, amplifier gain, and decimal to binary! It even comes with a set of FCC rules and regulations. Battery or AC operation.
System Requirements: Windows 95 or better, CD-ROM drive, and 10MB hard drive space required.

CK2001 - Pocket Data Logger/Sampler

 

This compact PC-driven sampler monitors voltage changes over periods ranging from milliseconds to months. It can also be used as a simple low frequency digital scope to examine audio and other signals up to 5KHz. No batteries are required as it is powered from the computer's parallel port.

Specifications:

Connects to the PC parallel port.
Will sample 0-2V or 0-20V at intervals of once per hour, down to once every 100uS.
Entire circuit is contained in an extended D-Shell case (included).
Includes Windows software.
Resolution is 10mV on the 2V scale, and 100mV on the 20V scale.
Records one channel of data.

VEK8055 - USB Interface Board

 

 

 

 

 

 

The K8055 usb interface board has 5 digital input channels and 8 digital output channels. In addition, there are two analogue inputs and two analogue outputs with 8 bit resolution. The number of inputs/outputs can be further expanded by connecting more (up to a maximum of four) cards to the PC's USB connectors. All communication routines are contained in a Dynamic Link Library (DLL). You may write custom Windows (98SE, 2000, Me, XP) applications in Delphi, Visual Basic, C++ Builder or any other 32-bit Windows application development tool that supports calls to a DLL.

Specifications Hardware:

power supply through USB: approx. 70mA
5 digital inputs (0= ground, 1= open) (on board test buttons provided)
2 analog inputs with attenuation and amplification option (internal test +5V provided)
8 digital open collector output switches (max. 50V/100mA) (on board LED indication)
2 analog outputs:
0 to 5V, output resistance 1K5
PWM 0 to 100% open collector outputs max 100mA / 40V (on board LED indication)
general conversion time: 20ms per command
dimensions: 5.7" x 3." x 0.8"
Specifications Software:

separate output / input test
clear all / set all function
counter function on inputs 1 and 2 with adjustable debounce (max 2kHz depends on total I/O load)
analog output set sliders
analog input bar-graph indication
minimum system requirements:
Pentium class CPU
USB1.0 or higher connection
Windows 98SE or higher (Win NT excluded)
CD ROM

 

 

 

Free Software
Delphi

Lesson 1
Delphi Programming
1.1. IDE Delphi
1.2. Component


Lesson 2
Printer Port
/ LPT
1.1.Basic
1.2.Address
1.3.Port Register
1.4.8 Bit Data Input
1.5.Test Circuitry
1.6.Assignment

Lesson 3
Printer Port / LPT
Experiments

3.1.LED
3.2.Swicht
3.3.Motor Stepper
3.4.DAC
3.5.ADC
3.6.Graph Display

Lesson 4
Serial Port

4.1.Basic
4.2.Hardware
4.3.Port Register

Lesson 5
Serial Port Experiments

5.1.LED
5.2.Stepper Motor
5.3.Swicht
5.4.ADC

Lesson 6
Game Port
Joy Stick
6.1. Basic
6.2. Experiments