Big summary! All sensor types are here

成都亿佰特

Big summary! All sensor types are here [Copy link]

Hello everyone, I am Xiaoyi.

The Internet of Things is developing rapidly, and sensors are indispensable for various IoT products to realize different functions. What sensors have you used?

Let’s first distinguish between SOC and MCU.

MCU (MicroControlUnit): microcontroller unit, such as STM32 microcontroller.

SOC (System on Chip): Linux, Android and other systems can run on the chip.

Physical Sensors

In embedded mobile devices, such as smartphones, smart wearables, home medical devices and other smart hardware devices, the physical sensors used are generally MEMS sensors (micro-electromechanical system sensors).

The main MEMS sensors are:

Light sensor: can sense the surrounding light intensity, such as mobile phones, notebooks, etc., to automatically adjust the backlight;

Magnetometer: can be used to test magnetic field strength and direction;

Accelerometer: An accelerometer is also called a gravity sensor, which can sense acceleration in any direction, such as mobile phone step counting, mobile phone posture measurement, etc.

Gyroscope: Gyroscopes have many uses, such as digital camera stabilization and inertial navigation;

Barometer: The atmospheric pressure is measured by using the air pressure to cause the vacuum box to deform, the distance between the upper and lower capacitor plates to change, and the capacitance to change;

Thermometer: After measuring the temperature and humidity, it is converted into electrical signals or other required forms of information output according to a certain rule, so as to detect the temperature value at that time;

Proximity light: The proximity light sensor is used to detect infrared signals, and it mainly detects the signals of external infrared LEDs;

PM2.5 sensor: a general-purpose fine particle concentration sensor that uses the laser scattering principle;

UV sensor: A sensor that uses a photosensitive element to convert UV signals into electrical signals;

...etc.

Smart Sensor Hardware Framework

The current sensor hardware framework can be mainly divided into three types: MCU built-in type, MCU external type and MCU independent type.

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吾妻思萌

Where is the video? I have never seen it.

Delon

Take a seat in the front row to learn. Sensors are a broad and profound subject.

Later, we will focus on smart data sensors