The Arduino is a powerful platform for interfacing with the real world, but it isn’t without limits. One of those hard limits, even for the Arduino MEGA, is a finite number of pins that the ...

[Wayne] wrote in to share an item he just finished working on, an I 2 C GPS shield for the Arduino. While other GPS solutions have existed for quite some time, his caught our eye due to its feature ...

A while ago I received a couple of I/O port expander modules that use the I 2 C protocol. Using that Chinese module, you can use only the SDA and SCL pins of your Arduino, or any microcontroller ...

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino..