The PCA9698 is an I2C, 40 pins parallel IO expander. These 40 pins can be configured as INPUT or OUTPUT and are addressable via 5 banks (groups) of 8 IO pins. The library provides read/write access to ...
Abstract: In order to solve the shortcomings of the traditional smart home server, the development and implementation of a novel embedded smart home control system based on STM32F407VGT6 ...
Abstract: In rapidly-developing technological world, `Home Security' is getting more and more attention in normal life. The challenge to developing various home security devices is not only ensuring ...
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, ...
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