With the development of the Internet of Things (IoT) industry, the variety of smart home products is increasing. Products like smart bracelets, smartwatches, smart fresh air systems, and air purifiers are all inseparable from sensors. Sensors are the cornerstone of the Internet of Things. Only with the advancement of the sensor industry can IoT applications become more widespread. Common sensors currently used in smart home products include motion sensors, smoke sensors, PM2.5 sensors, temperature sensors, micro-dust sensors, dust sensors, and more. Below is a detailed introduction.

Motion Sensor——Bracelet Design

Everyone is likely familiar with motion sensors. They allow you to stay informed of every movement in or around your home. If there is even a “rustle in the leaves,” they will send an alert to the owner’s smartphone.

Solution Introduction: Xiaomi bracelet design. Functions include basic step counting, sleep monitoring, and calorie calculation. It can also help users complete daily exercise volumes by setting goals. It uses a main chip from Taiwan, with sensors featuring ADI’s three-axis MEMS accelerometer and a Bluetooth chip.

Temperature and Humidity Sensor——Multifunctional Air Detector

Appropriate temperature and humidity can also provide users with a comfortable living environment. Although some electrical appliances have built-in probes, their monitoring range is limited and it is difficult to monitor every corner of the home. Therefore, standalone temperature and humidity sensors can fill this gap and provide comprehensive environmental feedback.

Solution Introduction: Multifunctional air detector. Air detection mainly covers the following aspects: formaldehyde detection, PM2.5 detection, temperature and humidity detection (SHT20 sensor), time, ESP8266 networking, and TFT display.

Smoke Sensor——Household Gas Alarm

Smoke sensors are less common in homes and more widely used commercially. However, they can still provide safety for home users by warning them before a fire occurs. For example, when smoke is detected, it can immediately trigger home appliance switches to cut off power, thereby reducing losses.

Solution Introduction: Household gas alarm. It uses a microcontroller as the main control chip and TGS5042 as the CO sensor to realize gas alarm functions. Alarm concentration/time is designed according to EN50291 European or US standards. Gas alarm: high-decibel alarm sound (>85dB) at 3 meters, with a red LED flashing rapidly.

PM2.5 Sensor——Smart Car Air Purifier

PM2.5 sensors can monitor the environment for users in real-time. Once safety indicators are exceeded, they can trigger home air purification equipment to purify the air and create a healthy environment for the family.

Solution Introduction: Car air purifier. It uses an air quality sensor to detect the car environment and utilizes an air quality indicator light to show current air quality. This air purifier features one-button start, real-time air quality monitoring, and automatic purification functions.

At the same time, it performs deep purification and removal of interior pollution/formaldehyde TVOC excess, odors, second-hand smoke residue, PM2.5, and viruses, while releasing millions of high-concentration negative ions.

Harmful Gas Sensor——Toxic Gas Detection Solution

Carbon monoxide poisoning and combustible gas leaks constantly threaten personal safety. Harmful gas sensors can act as a “bodyguard” for the family, detecting the presence of harmful gases at all times. If toxic gas is found, an alarm can be issued immediately. It can also be linked with exhaust fans or windows in the home; once detected, it triggers the exhaust fan and opens ventilation windows.

Solution Introduction:

Toxic gas detection solution, based on ADI company sensors for carbon monoxide gas detection. It can detect the concentration of dangerous CO gas exposed in the environment and clearly read the gas concentration, peak values, and high/low concentration alarm levels. If current gas values exceed preset limits, the instrument alerts the user with sound and light alarms.

Application areas for Luftmy micro-dust sensors: vacuum cleaners, sweeping robots, mite removal devices, smart trash cans, smart detectors, etc.

The S7-L Smart Dust sensor utilizes the optical transmission principle to accurately detect particle quantity and concentration data in the ventilation ducts of equipment such as vacuum cleaner handles or extension pipes, sweeping robots, range hoods, and particle detection instruments.