Design of a 7-segment Multiplexer with Arduino, which can display integer, floating numbers. The multiplexer works as follows: * The digital ports connect to the common displays, which will activate ...

mxUnifiedIO is a set of libraries for Arduino (IDE version 1.6 and up) that facilitate easy programming of multiple devices on I/O expanders or shift registers. The mxUnifiedIO base class provides the ...

The I/O expander PCF8574 can be configured to have a unique 7-bit address. The first four bits of the 7-bit address are 0100, and the lower three bits are the settings on the device pins A2, A1, and ...

Although there are other ways to do this, [Rod] has decided to write up his method of using two Arduinos and the I2C protocol to expand an Arduino’s IO capacity. As seen in the picture above ...

Diodes Incorporated PI4IOE5V6416RQ I/O Expander, available now from Mouser, is a 16-bit general-purpose I/O expander that offers remote I/O expansion for many microcontroller families via the I2C-bus ...

Some resistors were added to protect I/O pins of the Arduino. For the I2C bus we rely on the open drain structure to tackle the 5V <->3.3V issue of the Gnublin I2C boards, after all this shield is ...

Arduino-compatible boards may run on 5 or 3,3 V (at the IOREF-pin, this voltage can be detected). Besides of that, the EEC connector is specified for 3,3-V-IO and the ECC connector for 5-V-IO.

The chipKIT Pi can interface directly to the Raspberry Pi I/O Expansion header without any additional components, reducing both cost and design complexity. Users can also tap into a large repository ...