{"id":23076,"date":"2019-07-19T10:12:13","date_gmt":"2019-07-19T02:12:13","guid":{"rendered":"\/blog\/?p=23076"},"modified":"2019-07-19T10:27:11","modified_gmt":"2019-07-19T02:27:11","slug":"arduino-environmental-monitoring-system-using-grove-sensors","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2019\/07\/19\/arduino-environmental-monitoring-system-using-grove-sensors\/","title":{"rendered":"Arduino Environmental Monitoring System using Grove Sensors"},"content":{"rendered":"\n
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Arduino Environmental Monitoring System using Grove Sensors<\/a><\/figcaption><\/figure>\n\n\n\n

Environmental issues are gradually receiving attention. It has become important to implement a system that can monitor the indoor and outdoor environment and make an alarm when some environmental parameters break through the warning line. Using Grove sensors will be the fast DIY way to build an environmental monitoring system<\/a> by the plug and play way. <\/p>\n\n\n\n

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface – Getting Started<\/a> and Introduction to Grove<\/a> before your using of the product.<\/p>\n\n\n\n

And check our Smart Garden tutorial to help you quickly implement an environmental system at home. <\/p>\n\n\n\n

Smart Garden <\/a><\/strong><\/h4>\n\n\n\n
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Smart Garden <\/a><\/strong><\/figcaption><\/figure>\n\n\n\n

In this tutorial, we made a Smart Garden sensor and reminder system by combining Grove starter kit modules. We use a DHT11 module<\/a> to monitor the surrounding environment of the plant, use a light sensor <\/a>to detect the surrounding light intensity.<\/p>\n\n\n\n

Here we list the sensors you might need for the system depending on different needs<\/a>, such as detecting temperature and humidity, Carbon Dioxide, air quality, PM2.5, and noise monitoring.<\/p>\n\n\n\n

Temperature and Humidity Sensors <\/h3>\n\n\n\n

Grove – Temperature & Humidity Sensor (DHT11)<\/a><\/h3>\n\n\n\n
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Grove – Temperature & Humidity Sensor (DHT11)<\/a> <\/figcaption><\/figure><\/div>\n\n\n\n

Grove – Temperature & Humidity Sensor (DHT11)<\/a><\/h3>\n\n\n\n
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Grove – Temperature & Humidity Sensor Pro (AM2302\/DHT22)<\/a><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

This sensor is a high accuracy Temperature and Humidity sensor based on the DHT22 module (also known as AM2302 or RHT03). High-cost performance and high precision make it ideal for temperature and humidity monitoring of Arduino and Raspberry Pi, you can also use it to make a thermometer and hygrometer.<\/p>\n\n\n\n

Compared with the DHT11, this product has higher precision and wider measurement range, but the usage and code are almost the same. Simply put, if you need higher measurement accuracy, this product will be a better choice; if you need a higher price\/performance ratio, then Grove – Temperature & Humidity Sensor (DHT11)<\/a> may be more appropriate. The figure below lists the main differences between the two: <\/p>\n\n\n\n

\"DHT22<\/figure><\/div>\n\n\n\n

Grove – Temperature & Humidity Sensor (DHT11)<\/a><\/h3>\n\n\n\n
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Grove – BME280 Environmental Sensor (Temperature Humidity Barometer)<\/a><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Based on Bosch BME280,<\/a> we made this low-cost and high-precision environmental sensor — the Grove – BME280 Environmental Sensor (Temperature Humidity Barometer),<\/a> support I2C and SPI.<\/p>\n\n\n\n

Grove BME280 provides a precise measurement of not only barometric pressure and temperature, but also the humidity in the environment. The air pressure can be measured in a range from 300 hPa to 1100hPa with \u00b11.0 hPa accuracy, while the sensor works perfectly for temperatures between – 40\u2103 and 85\u2103 with an accuracy of \u00b11\u2103. As for the humidity, you can get a humidity value with an error of less than 3%.<\/p>\n\n\n\n

Grove – Temperature, Humidity, Pressure and Gas Sensor (BME680)<\/a><\/strong><\/h3>\n\n\n\n
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Grove – Temperature, Humidity, Pressure and Gas Sensor (BME680)<\/a><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

The Grove-Temperature&Humidity&Pressure&Gas Sensor(BME680)<\/a> is a multiple function sensor which can measure temperature, pressure, humidity, and gas at the same time. It is based on the BME680 module. The 4-in-1 function is integrated with such a small module, it will be very beneficial to apply on IoT or GPS devices.<\/p>\n\n\n\n

Grove – Temperature, Humidity, Pressure and Gas Sensor (BME680)<\/a><\/strong><\/h3>\n\n\n\n
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Grove – Temperature&Humidity Sensor (SHT31)<\/a><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

The SHT31 sensor<\/a> could be the finest and highest-accuracy humidity sensor you can find, as it can acquire the relative humidity at only \u00b12% error. On the other side, it also features excellent performance in terms of temperature measurement, you can use it in some extreme conditions, like -40 degree or 125 degrees, and it still keeps an accuracy of \u00b10.3 degree.<\/p>\n\n\n\n

Air Monitoring Sensors <\/h2>\n\n\n\n

We also have different air monitoring sensors for specific air such as detecting dust, and PM2.5, air quality, Carbon Dioxide, MQ2 & MQ3. <\/p>\n\n\n\n