Multimeter Free 1.7.9 APK

This Digital Multimeter/Oscilloscope help you to measure: 1 - Volts2 - Ohms3 - Temperature4 - The light (lx)5 - Frequency6 - Amplitude7 - Oscilloscope included8 - Sound Generator sine/square wave 0Hz - 20000Hz included(in version pro)9 - Color code resistance calculator10 - Save measuring data!!11 - Added capacitance meter from 1nF to 10000 mF12 - Inductance meter!It's easy to build, you just need: 1 -A arduino uno or nano2 - Bluetooth module(HC-05 or HC-06)3 - Temperature sensor(TMP36) 4 - Some resistances. And for Oscilloscope:1 - A old headphones with 4 pins2 - Capacitor from 0.1mF to 1mF.MY WEB PAGE : https://www.neco-desarrollo.esPlease watch video tutorial How to use oscilloscope: https://youtu.be/ZwNe8yEjjxo**For build the circuit follow this** LINK FOR DOWNLOAD SCHEMATIC:http://neco-desarrollo.es/arduino-multimetroLINK FOR DOWNLOAD ARDUINO SKETCH HERE:http://neco-desarrollo.es/arduino-multimetroMY WEB PAGE:www.neco-desarrollo.esCouncils to improve the precision:1 - Check the voltage of 5v pin of arduino after connecting everything, it is the reference voltage to measure ohms when connecting the bluetooth module the voltage drops a bit, it can be in 4.8v, put exact value in the arduino code2 - The values ​​of the resistances must be precise2 - You must weld all the connections to avoid parasitic resistancesMultimeter/Oscilloscope try it now!