Circuits & Schematics: frequency meter - 5

41. Personal G-Force Meter
    Circuits Automotive Measurement
    .. main application of the accelerometer is either for sensing tilt or sensing acceleration. For this application A G-Force meter for my car will be made to see how many G's I pull while driving. Below is an example of what the Personal ...
    Apr 30, 2008

42. LM3915 / LM3916 VU Meter
    Circuits Audio Light National Semiconductor LM3914 LM3915 LM3916
    .. The LED VU Meter was the height of late 80-s boombox technology. This instructable will build one out on the breadboard. Who ...
    Sep 1, 2008

43. 3 Meter Clock. Internet connected clock that displays the time using three analog panel meters
    Circuits Arduino Domestic Measurement MCU Open-Source Platforms Microcontrollers Usage
    .. would be able to log on to a SNTP time server, get the correct time, and display the HOURS digit on one analog panel meter, the MINUTES digit on the next, and the SECONDS digit on the last. What a cool way to display the correct time! ...
    May 27, 2008
44. Digital Capacitance Meter
    Circuits Measurement Microcontrollers Usage
    .. is a simple capacitance meter which can measure capacitance value easy. There are some measurement methods for capacitance, at one time the ...
    May 25, 2009
45. 0-500MHZ LM3914 RF Power Meter
    Circuits Measurement Radio
    .. up to 500MHZ. However instead of using a PIC and LCD, I am using a simple LM3914 Bar Graph IC for display of db levels. Meter may be powered from a 9V battery or external 12V DC adapter. A built-in 78L05 regulator is used to power ...
    Feb 23, 2010
46. Volt/Amp/Watt meter on MSP430 LaunchPad
    Circuits Measurement Microcontrollers Usage Texas Instruments MSP-EXP430G2
    .. is a simple voltage and current meter that uses the Texas Instruments INA219 chip and Texas Instruments MSP430 LaunchPad Development kit . Voltage ...
    Aug 21, 2012
47. Photo meter assesses ambient light
    Raju Baddi
    Circuits Measurement
    .. will produce usable results at a low cost. Figure 1. If the simplest version is required, use an inexpensive volume-unit meter to replace the 0- to 100-uA meter. Three LEDs are used; experimentation will indicate which device has the ...
    Apr 16, 2013
48. DIY Digital AC Watt Meter
    Circuits Measurement Digital Microchip PIC18F252
    .. to measure the power consumption of a device. In this project we are building one (Figure 1). Figure 1. DIY Digital AC Watt Meter. This is an AC Watt Meter which can measure the real power consumption of a device connected to the ...
    Sep 24, 2015
49. Power Meter is ±1% Accurate
    Ken Yang
    Circuits Measurement Maxim MAX427 MAX4372
    .. industrial heating systems, and other systems in which the load voltage and current are both variable. The power meter/controller in Figure 1 uses the principle that power is the product of voltage and current. The typical ...
    May 31, 2017
50. Power meter uses low-cost multiplier
    Circuits Analogue Design Measurement Texas Instruments LM3812 LF412
    .. Kotowski EDN A power-meter circuit typically requires either an analog or a digital multiplying circuit. These circuits can be complex, ...
    Apr 18, 2019

Sort by: relevance / date