Category: Test Gears & Instruments

Voltage To Frequency Converter Range 10Hz To 11Khz Using LM331

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The LM331 family of voltage-to-frequency converters are ideally suited for use in simple low-cost circuits for analog-to-digital conversion, precision frequency-to-voltage conversion, long-term integration, linear frequency modulation or demodulation, and many other functions. The output when used as a voltage-to-frequency converter is a pulse train at a frequency precisely proportional to the applied input voltage. Thus, it provides all the inherent

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Digital 2 Digit 7 Segment Thermometer Using PIC1825, CAT4016, DS1820

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This digital Thermometer provides real-time temperature values from 00 to 99 degrees Celsius. The Temperature Monitor  project built using PIC16F1825 Microcontroller from Microchip, CAT4016 serial to display driver IC from ON-Semiconductor, DS18200 Temperature sensor and two 7 Segment common anode 0.5 Inch display. This little handy project consumes low current and can be work with 4.5 V batteries, intensity of

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0 To 1Amp Bar-Graph Current Monitor Using PIC16F886 and 20 SMD LEDs

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Tiny Bar-Graph displays provide a Red color bright, easy to read display of current range from 0 to 1A.  This Bar-Graph has 20 segments in single color and display 0 to 1Amp Current. The Barograph current   monitor is based on PIC microcontroller with 10 Bit resolution ADC.  This high performance measurement provides unique capabilities and can be used in various

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0 To 5V Bar-Graph Voltage Monitor Using 20 LED & PIC16F886 SMD Board

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Tiny Bar-Graph displays provide a Red color bright, easy to read display of Voltage range of 0 to 5V.  This Bar-Graph has 20 segments in single color and display 0 to 5V DC. The Barograph Voltage   monitor is based on PIC microcontroller with 10 Bit resolution ADC.  This high performance measurement provides unique capabilities and can be used in various

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LUX Meter Module Based On OP-Amp

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LUX Meter project has been design to measure the illumination.  Illumination is luminous flux falling on surface area of photo diode.  This illumination converted to corresponding voltage using Op-Amp circuit. Specifications       Supply 9 VDC PP3 Battery @ 20 mA      Onboard Photo Diode      Onboard preset for calibration      Range selection via jumper 10mV/LUX, 1mV/LUX, 0.1mV/LUX      Interfacing

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Digital Panel Meter ( DPM) Using ICL7107 IC & 7 Segment Display

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Digital Panel Meter performs digital processing on or conversion and display of voltages, currents, other analog signals, and pulse signals. This project is based on popular ICL 7107 IC, which is analog to digital converter and has been designed to drive 7 segment LED display. The ICL7107 is high performance, low power, 3, 1/3 digit A/D converter. Included are seven

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