For example, for digitalRead() to know what pin to check, it takes an argument in the form of a pin number. The positive end of a diode (remember that an LED is a type of diode).Ī type of data supplied to a function as an input. This circuit is built-in to the microcontroller, and is connected to the analog input pins of the Arduino board. Something that can continuously vary over time.Ī circuit that converts an analog voltage into a digital number representing that voltage. Describes the current as it flows through a conductor, like a wire. The amount of electrical charge flowing past a specific point in your circuit. This is the sort of electricity that comes out of a wall socket. Motors are a type of electrical actuator.Ī type of current where electricity changes its direction periodically.

Usually it takes care of the authentication and the assignment of an IP address.Ī type of component that changes an energy into motion. Sometimes, they are used to detect orientation, or tilt.Ī WiFi device that connects to the physical network and allows to access the LAN through the wireless connection. It allows to build low power solutions for Internet of Things.Ī sensor that measures acceleration. The SAM W25 module is based on Atmel’s WINC1500 Wi-Fi core combined with Atmel’s ARM® Cortex® -M0+ based microcontroller technology. Usually AREF can’t be greater than the supply voltage of the ADC circuit. Changing the AREF allows to use the resolution of the ADC at its best, especially for low voltages. The library may contain many other functions that are only used internally, but it is only necessary to understand the API in order to use the library.Īnalog REFerence : the reference max voltage for the Analog to Digital converter. The API of an Arduino library is the public functions exposed to the user.

Application Programming Interface: the interface used to interact programmatically with a piece of software.

Arduino code language