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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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REACTION TIMING xx BIOLOGY xx GAME -- ELECTRONIC xx TIMER Using a computer to design psychological and physiological tests for both serious applications and recreation. Examples shown include a memory test, reaction time test, hand-eye coordination test, etc. External switch poller (ESP) for a TRS-80 computer allows it to sense seven external switches via the cassette port. Useful in connection with electronic games which require players to push a button. Electronic circuit tests which of up to 6 people can move their finger from a "play" button to a "stop" button in the quickest time. Est. cost: under $10. Quiz master electronic circuit determines which of eight different switches were pressed first. It sounds a buzzer, lights one LED, and locks out the other 7 switches. Also features a time out period of 3 to 15 seconds. Est. cost: $88 (kit). Tic Tic Boom electronic project. Timer for quiz games or other beat the clock contests emits the familiar, anxiety-provoking ticking of a clock which ends in a loud BOOM (or scream) when the time is up. Est. cost: $10 (kit). Digital bowl box. Lamps indicate which of eight contestants pressed a button first and gets to answer the question. Lights and switches tell which contestant responds first. Reflex timer displays the number of milliseconds it takes you to close a switch after you hear a buzzer. Build the React-Time tester. A series of tests involving two LEDs and two switches are averaged together to give an indication of your reaction time. Est. cost: $41 (kit). Game show timer circuit that can be used for up to 8 contestants. The first player to press a switch lights an LED and locks out the others. Pushie-button, an electronic dueling game. A box with two push buttons. At the count of three, the first player to push his button wins the round. A lamp lights to show who won first. Quiz master. Priority latch tells with a lighted lamp which one of three people pushed the "answer" button first. Helps prevent quarrels in guessing games involving up to three people. Stoppit. Are your reflexes faster than a speeding LED? Try to push the stop button before the LEDs count down from 8 to 0. Est. cost: $20. Fastouch. An electronic game of reflex and recognition for up to 4 players. Game of NERVES is written in BASIC. Object is to press a key after a precise amount of time passes. Score is based on how close you come. Circuit for a reaction testing game. The first person to bridge a touch switch turns off an alarm and lights a corresponding LED. Est. cost: under $10. Circuit for a reaction timer. When this circuit is started, a needle on a meter starts to move up the scale. You try to hit the "stop" switch and get the lowest possible meter reading. First-answer selector. Electronic "judge" responds only to the first of four game players to press their individual control button. An LED and buzzer signal who is first (fastest). Reflex, an electronic game played with dice, poker chips and a reflexometer (a device which lights lamps to signal the first person who pushes a hand-held button). Electronic circuit has several switches, each wired to a lamp. The first switch to be pushed causing a lamp to light, prevents any other lamps from being activated. Use for question/answer game. Electronic "Tug-of-War" tests your reflexes. When the "go" light comes on, the first one to press a button gets a point. If a button is pressed before the go light comes on, then the opponent gets the point. First one to move the pointer to his side wins. Circuit tests your timing judgement by flashing an LED every 1.5 seconds. You try to keep the LED lit by pushing the button every 1.5 seconds. Player-response circuit lights a lamp to show which of two people pushed the "answer button" first. Quiz-game light box determines which contestant pushed answer button first. Build a reaction timer. Tests how quickly you can press a pushbutton switch in response to a flash of light. Two people can compete at the same time. Digital Bowl Box. Eight numbered LED's and an associated push-button for each are used in quiz contests for up to 8 participants. The first button pushed lights an LED and locks out the other buttons. A simpler circuit is shown in a separate article. Quick Draw McGraw game. The object is to prevent your opponent from lighting the LED on your side of the circuit before you light his. This reaction timer game begins when someone yells "draw". First-response or fast-response monitor identifies the first person to close a switch. Alternative circuits illustrate how several different conductor devices can be used to solve the same simple circuit problem. Contestant lock-out circuit indicates on an LED which of up to eight players rings in first. Who's-on-first circuit will determine which of two people has the fastest hand reflex. Circuit for a precedence detector that indicates which of two pushbuttons is pressed first. Drunkometer. Timer which starts from zero and measures elapsed time up to 2-1/2 hours in tenths of a second. Flashing light indicates unit is running. Useful for testing reaction time as well as other measuring jobs in racing, photography, etc. Est. cost: $20. Electronic device measures your reaction time. Hold down a button switch until a lamp goes off, then see how fast you can release the button. Est. cost: $25. Reaction time to audio and visual stimuli. Description of a science fair project. Astronomical computing. BASIC program to measure your personal reaction time. This is important to know when recording lunar occultation timings. | |||||||||
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