The I2CKeyPad library implements the reading of a 4x4 keypad by means of a PCF8574. Smaller keypads, meaning less columns or rows (4x3) can be read with it too. Since 0.3.2 the library allows a 5x3, ...
The library documentation is mainly placed in the following pdf document refman.pdf or located under the following github pages github.io. Additionally in combination with the technical datasheet of ...
Abstract: Industrial application software (IAS) must provide different functions depending on the user and the domain served, thus the systematic and comprehensive testing of the software usually ...