Arduino based current meter with i2c LCD screen

A simple current meter using the arduino. The schematic is for Arduino UNO/NANO and all the the breadboard tests are made using the NANO. For different scales I've used some push buttons to change between scales. There is also a bit of Ohm Law theory on the video and each part is explained.

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my Q&A page: http://electronoobs.com/eng_preguntas...
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-----------------LINKS-------------------
Current meter: http://www.electronoobs.com/eng_ardui...

See also:
Capacitance meter: http://electronoobs.com/eng_arduino_t...
Resistance meter: http://electronoobs.com/eng_arduino_t...
Current meter: http://electronoobs.com/eng_arduino_t...
Inductance meter: http://electronoobs.com/eng_arduino_t...


---------------MATERIAL---------------
10A75mV shunt: http://www.ebay.com/itm/75mV-DC-10-20...
LM324 Op-Amp: http://www.ebay.com/itm/10PCS-LM324N-...
AD623 instr Amp: http://www.ebay.com/itm/1PCS-AD623ANZ...
i2c LCD: http://www.ebay.com/itm/New-Blue-IIC-...




---------------SCHEMATICS-----------
Schematic LM324 non inverting: http://electronoobs.com/images/Arduin...

Schematic LM324 inverting: http://electronoobs.com/images/Arduin...

Schematic AD623: http://electronoobs.com/images/Arduin...


--------------------CODE------------------
http://electronoobs.com/images/Arduin...



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