How-to: Accurate Voltage Measurements with Arduino скачать в хорошем качестве

How-to: Accurate Voltage Measurements with Arduino

In this video, we show how to configure an Arduino UNO board for precise voltage measurements. A good-quality power supply is required for this. Also, you must know the exact value of the reference voltage the AD converter is using. Do not simply assume that it is 5 V or so, measure it. If you follow the instructions carefully then you too can take accurate measurements with an Arduino board. #Arduino ‪@Arduino‬ Contents ======== 0:00 intro 0:15 Analog-to-digital converters 1:12 analogRead() 1:57 Convert to volts 2:49 Floating-point calculations 3:36 A practical application 5:15 Better resistors 6:38 Measure the reference 7:41 Use a good power supply 8:52 analogReference() 10:00 Interference 10:59 Summarizing Resources ========= Arduino UNO Rev3: https://www.elektor.com/arduino-uno-rev3 A good multimeter: https://www.elektor.com/hioki-dt4256-... A good power supply: https://www.elektor.com/peaktech-6225... Arduino sketches used in this video: https://github.com/ClemensAtElektor/v... Check out our YouTube offers: https://www.elektor.com/youtube Subscribe to our Newsletter: https://www.elektormagazine.com/elekt... Join this channel to get access to perks:    / @elektortv