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Arduino Quiz Game Controller

Quiz Game Controller using “Lights and Sounds Buzzers” and Arduino

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Jeopardy style quiz games are favorites for creating excitement and educational instruction at the same time.  Teachers, summer camp counselors, and even industry educators find this type of game to help generate interest and involvement from the participants. The idea behind the game is simple, but sometimes finding a device that will perform the “first …

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thermo schematic

Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8

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I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with temp range of -55 to +125 degree C, which can be interfaced with microcontroller over two-wire serial i2c bus. It has operating voltage range from 2.7 to 5.5v. I’m operating it here at 3.3v, same as the one …

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Keypad Interface

2-Wire Keypad Interface Using a 555 Timer using PIC16F628A

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Keypads are a very commonly used input device in microcontroller-based systems. In a keypad, multiple switches are arranged in rows and columns so that they could be interfaced to a microcontroller with a minimum number of I/O pins. For example, a 12-key keypad is arranged in a 4×3 format, which allows to interface the 12 …

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