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Hi,My first guess would be, that the library is not found, as the "positive" is declared in the "<LiquidCrystal_I2C.h>" library. As Arduino changed the place and the way libraries are found after Arduino 1.6.5 I am not sure how to solve this (that was one of the reasons I stayed with 1.6.5). Probably someone else can solve this or a google search will turn someting up.
Hi,it would be helpfull when you could describe the problems you are fighting with. I am using Win10 with Arduino 1.6.5. That is working without problems. The newer versions caused a lot of troubles including some schetches not working at all. That is the reason I am still using the older 1.6.5 version.So if youu could describe your problems more in detail, probably someone could help you to solve them.
Hi,according to the datasheet, the WP (write protect) pin must be connected to GND or left unconnected to be able to write to it. To protect it from writing, it must be connected to VCC. As the latest update of the programm allows to upload the data to the EEPROM, the WP pin should be connected to GND, as shown in the circuit.
a standard 10k resistor does the job.
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