To link a standard 16×2 LCD directly with the microcontroller, for instance Arduino, you would need atleast 6 I/O pins to talk to the LCD. However, if you use an LCD module with I2C interface, you ...

If you’ve got an idea for how to use an I2C programmable NFC tag, drop a note in the comments. Elecfreaks is doing an Indiegogo campaign for the DNFC, $13 for one. I picked one up, but it’s ...