April 2022

Object detection is a computer technology related to computer vision and image processing that deals with detecting instances of semantic objects of a certain class (such as humans, buildings, or cars) in digital images and videos [2]. The object detection generic algorithm is: Identify and locate objects within an image or video Bounding boxes are […]

In this experiment, an LCD based on the Hitachi HD44780 controller was used. In this type of screen, there are liquid crystals inside that when they are passed through by a current, the crystal becomes opaque, blocking the light (backlight) that tries to pass. Therefore, the various combinations of specific crystals on and off make it

The I2C protocol describes the operation of a serial communication bus that uses just two wires. Invented by Philips in the early 90’s, this protocol is widely used to connect low-speed peripherals to motherboards, microcontrollers, and related devices. In this tutorial, I am going to establish the I2C communication between the Maixduino and the 0.95inch

Face detection can be regarded as a specific case of object-class detection. In object-class detection, the task is to find the locations and sizes of all objects in an image that belong to a given class. Face detection answers two questions: Are there any human faces in the collected images or video? Where are the

A Solar tracker is a system that positions an object at an angle relative to the Sun. The most common application for solar trackers is the positioning of photovoltaic (PV) panels (solar panels), and it is important that they remain perpendicular to the Sun’s rays . PV solar trackers adjust the direction that a solar panel

Tilting is a cinematographic technique in which the camera stays in a fixed position but rotates up and down in a vertical plane. Tilting the camera results in a motion similar to that of someone raising or lowering their head to look up or down. [1] In cinematography and photography, Panning means swivelling a still or video camera horizontally from a fixed position. This motion

An ADC converts a continuous-time and continuous-amplitude analog signal to a discrete-time and discrete-amplitude digital signal. The conversion involves quantization of the input, so it necessarily introduces a small amount of error or noise. Furthermore, instead of continuously performing the conversion, an ADC does the conversion periodically, sampling the input, limiting the allowable bandwidth of the input signal. [1] In this tutorial, I am