Make a Digital Voltmeter Using an Arduino - All About Circuits
As the battery nominal voltage is 3v, I added a DC-DC step up converter to bring the voltage up to 9 volts and connected it to the Vin pin. In order to have the battery voltage indication on the display, I used an analog input (A2). Arduino analog inputs can be used to measure DC voltage between 0 and 5V, but this technique requires a calibration.
Arduino - ReadAnalogVoltage
The Arduino environment has several functions that come in handy when working with sensors (see Arduino- MATH). One of the most useful is the Map function that allows you to automatically generate a specific output from an input range.
Arduino Uno For Beginners - Projects, Programming and
Measuring Current with the Arduino Measuring Current with the Arduino Although there are dedicated sensors to measure current - such as the Allegro Microsystems ACS712 Unfortunately, the lower the voltage we create across it, the less voltage there is for the Arduino's Analog Input pin.
How To Measure Voltage - National Instruments
AC Digital Multifunction Smart Meter using Arduino and PZEM-004T : Smart Meter Smart Meter using PZEM-004T for the measurement of Electrical parameters like voltage, current, active power and energy. KNOW MORE ABOUT PROJECT FEATURES Electrical parameter measurement function Voltage, Current, Active power Serial communication (TTL serial
ML8511 UV Sensor Hookup Guide - learnsparkfuncom
Measuring Temperature with an NTC Thermistor. August 15, // Hold temperature in celsius double adcAverage = 0; // Holds the average voltage measurement int adcSamples [SAMPLE I prefer Fahrenheit, but I leave it up to you to either change this function, or create another function which converts between the two units . */
LOW COST PRECISION MEASUREMENT SHIELD FOR ARDUINO
/17/2015 Professionals Isolated measuring of voltage/current using an Arduino (Read 5470 times) Have you used the MAP function? An easy way to convert one unit to another.
Arduino analog measurements :: Electronic Measurements
Capacitance meter: DIY Arduino based capacitance meter. Fast signal sampling: Running analog to digital conversion in fast mode. Shutter speed: Determining the shutter speed of a (digital) camera. Supply Voltage Measurement: Determine the supply voltage of an Arduino (after the regulator).
Simplified Arduino AC Current Measurement Using ACS712
Here I have used an Arduino NANO to accomplish all these tasks. Arduino is generating a modified sine waveform of 5V which is amplified to a level of 12V using L293D ic. Battery voltage is monitored every 20ms using timer interrupt.