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Do it yourself (DIY)

I2C module LCD to Arduino


The most annoying of the projects with Arduino and LCD is the number of threads, because they are needed 4 for the data, two for control, two for power and two more for a pot. This I2C module with display ...

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USB current and voltage meter


Your tablet or mobile phone is really loading as it should? The source, the cable or even the device may be the problem. You can discover the defect using a USB current and voltage meter like this one below, that's pretty cheap ...

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