Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.

BASIC program to convert (correlate) the turn-counter readings of an instrumentation tape recorder into elapsed time, remaining time, footage used, and footage remaining.
BYTE Sep 1980 (v.5#9) pg. 66

Electrical-energy measurement with the Apple II. Hardware and software to perform data-logging functions on a wind-driven generator or bank of solar cells.
BYTE Jul 1981 (v.6#7) pg. 294

The microcomputer as a laboratory instrument. Hardware and software for maintaining an interrupt-driven data-acquisition system.
BYTE Nov 1981 (v.6#11) pg. 84

Putting real-world interfaces to work. Part 1. Monitoring physical quantities with the TRS-80. Monitor such things as temperature, pressure, light, magnetic fields, water levels, positions, speed, vibration, etc.
BYTE Oct 1982 (v.7#10) pg. 96

Putting real-world interfaces to work. Part 2. Inexpensive transducers for the TRS-80.
BYTE Nov 1982 (v.7#11) pg. 416

Putting the Apple II (to) work. Part 1. Hardware. A high-speed system for the acquisition and analysis of laboratory data.
BYTE Apr 1984 (v.9#4) pg. 152

Putting the Apple II (to) work. Part 2. Software. A high-speed system for the acquisition and analysis of data.
BYTE May 1984 (v.9#5) pg. 382

The analog-digital connection. A look at the relative merits of analog vs. digital electronics in the real world of data collection.
COMPUTERCRAFT Jan 1992 (v.2#1) pg. 62

Detecting and measuring physical parameters. How to use sensors to detect and measure just about anything. Advice on finding the right sensor, interfacing sensors to microcontrollers, and a microcontroller and BASIC compiler for data acquisition and other applications.
COMPUTERCRAFT May 1992 (v.2#5) pg. 46

Robotics, control and monitoring with an embedded controller. Using the 8031 eight-bit microcomputer system on a chip and your personal computer as a platform for a wide variety of real-world control applications in robotics, data-acquisitions, and control.
COMPUTERCRAFT Aug 1992 (v.2#8) pg. 10

CYDAT. A universal data collector/controller. Extremely flexible project lets you add inputs and outputs to just about any microcontroller engine to implement virtually any application. Support up to 80 digital inputs and outputs, 80 channels of eight-bit A/D, control up to 80 relay outputs, sense up to 40 5-to-220-volt AC or DC inputs, and control up to 40 24-to-220-volt AC triac outputs. Accommodates a wide range of microcontroller engines. Est. cost: $300. Part 1.
COMPUTERCRAFT Nov 1992 (v.2#11) pg. 49

CYDAT. A universal data collector/controller. Part 2. Circuit construction details and theory behind a practical controller card utilizing the Motorola MC68HC805C8 microcontroller.
COMPUTERCRAFT Dec 1992 (v.2#12) pg. 48

CYDAT. A universal data collector/controller. Part 3. Add a parallel processor arrangement to increase power and flexibility. This upgrade allows you to add modem, nonvolatile memory, real-time clock, speech processor, digital signal processor, math coprocessor, etc.
COMPUTERCRAFT Jan 1993 (v.3#1) pg. 58

CYDAT. A universal data collector/controller. Part 4. Build a hardware card that interfaces the CYDAT system directly to the bus of a PC using any available eight-bit slot.
COMPUTERCRAFT Feb 1993 (v.3#2) pg. 56

Build a quick-and-dirty data interface that uses a serial port to capture analog and digital signals without complicated and costly circuitry.
COMPUTERCRAFT Aug 1993 (v.3#8) pg. 61

RS-232 monitor/control system incorporates an addressable asychronous receiver/transmitter IC that is well-suited for remote data collection and control. The complete system is composed of a PC, control software, combination RS-232 interface and power-distribution center, and one or more control nodes connected in parallel over a four-conductor bus. The conductors carry power, ground, and the transmit and receive signals. Est. cost: $50.
ELECTRONICS EXPERIMENTERS HANDBOOK 1990 pg. 113, 125, 126

PC-based test bench. Part 3. Interface to receive and send both analog and digital signals. Features 24-bit digital I/O, 8 channels of 8- or 12-bit A/D conversion, and a single 8-bit D/A conversion. Est. cost: $159 (kit)
ELECTRONICS NOW Aug 1992 (v.63#8) pg. 60

HiLo. A data-logging application for the 3Com PalmPilot handheld computer. Tracks and displays the minimum, maximum, and running average of a series of byte-size inputs from the serial port. Part 1.
ELECTRONICS NOW Feb 1998 (v.69#2) pg. 12

HiLo. A data-logging application for the 3Com PalmPilot handheld computer. Part 2.
ELECTRONICS NOW Mar 1998 (v.69#3) pg. 16

HiLo. A data-logging application for the 3Com PalmPilot handheld computer. Part 3.
ELECTRONICS NOW Apr 1998 (v.69#4) pg. 22

Data monitor. Build a device to monitor and record information about your environment for extended periods of time. Accepts a variety of input sensors to handle both digital and analog events (temperature, humidity, pressure, pulses, etc.). Operates from either battery or AC power and does not require a computer connection. Est. cost: $249 (kit).
ELECTRONICS NOW Apr 1998 (v.69#4) pg. 33, 44

How to handle interrupts with an 8080-based system doing data acquisition and environmental control. One assembly language and two BASIC language interrupt handling routines are described.
KILOBAUD MICROCOMPUTING #37 Jan 1980 pg. 180

BASIC routine to read a parallel port to determine which of 8 switches wired to the port has been closed. A printer message indicates how long after the program started that particular switch closed.
KILOBAUD MICROCOMPUTING #39 Mar 1980 pg. 100

Get on the PET instrument bus. An easy machine-language implementation of the IEEE 488 (GPIB) bus via SRQ line interrupts.
KILOBAUD MICROCOMPUTING #55 Jul 1981 (v.5#7) pg. 167

Portable, battery-powered Apple computer is used to monitor water quality. Hardware and software techniques described.
KILOBAUD MICROCOMPUTING #56 Aug 1981 (v.5#8) pg. 90

Use a computer and the method of finite differences (difference calculus) to spot and correct incorrect data. Includes a difference calculus program applied to wind-chill data.
KILOBAUD MICROCOMPUTING #56 Aug 1981 (v.5#8) pg. 152

Using an Apple computer to log and analyze data from the Aminco recording spectrophotometer. Program #1 is used to collect and save data. Program #2 is used to analyze the data. Both written in BASIC. The application is to toxicology.
KILOBAUD MICROCOMPUTING Jan 1982 (v.6#1) pg. 86

A cassette recorder analog data logger. How to use inexpensive cassette recorders to store analog data on tape and then reconstruct the data.
MODERN ELECTRONICS [2] Dec 1984 (v.1#3) pg. 72

Analog acquisition unit lets a computer store, compare, plot and analyze data from your experiments and circuits. Est. cost: $69.
MODERN ELECTRONICS [2] Nov 1986 (v.3#11) pg. 22

Build a portable analog or digital memory translator. This device permits storing both analog signals (between dc and about 250 Hz) and digital data (up to 500 bits per second) on a low-cost cassette. The data can be played back later and the translator will convert them back to their original signal. Est. cost: $70.
POPULAR ELECTRONICS [1] Apr 1975 (v.7#4) pg. 27

Build a versatile data logger. Perform long-term data-collecting tasks with this dedicated microprocessor-based circuit that collects and stores readings for later transmission to a computer. Switches let you sample at various rates (from 100 measurements/second to one measurement every 10 minutes). Est. cost: $80 (kit).
POPULAR ELECTRONICS [2] Jul 1994 (v.11#7) pg. 35

Build the PC poller. Polling system immediately monitors the status of up to 36 keypad stations, captures the responses, and logs them into a computer where analyses can be performed.
POPULAR ELECTRONICS [2] May 1996 (v.13#5) pg. 38

Universal sensor interface connects to your PC's parallel printer port and enables you to excite, control, and read inputs from a wide variety of sensors (temperature, pressure, humidity, etc.). This device is built around eight-channel, 12-bit analog-to-digital and digital-to-analog converters. Est. cost: $59 (kit).
POPULAR ELECTRONICS [2] Jun 1999 (v.16#6) pg. 39
Correction POPULAR ELECTRONICS [2] Oct 1999 (v.16#10) pg. 16

Data logging analog and event measurements. General-purpose computer interface which can receive signals from four analog sensors and four event detectors and save the data on a disk file.
SCIENCE PROBE! Apr 1991 (v.1#2) pg. 101
Correction SCIENCE PROBE! Jul 1991 (v.1#3) pg. 119

Game cards, transducers and experimental inputs. (1) How to attach joysticks to a computer using a game card. (2) Using various transducers to capture input data for a computer. Looks at resistive sensors, switches, slow-speed rotation, light-beam detector, etc. (3) Design ideas for a water-level gauge, simple wind direction indicator, and a tipping-bucket rain gauge.
SCIENCE PROBE! Jul 1991 (v.1#3) pg. 14

Analog data logger utilizes a miniature tape recorder. Use it to store measurements of temperature, wind speed, sunlight intensity, etc. Typical electronic circuits included for input and output.
SCIENCE PROBE! Nov 1992 (v.2#4) pg. 123

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