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The BMP280 sensor is an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI. Features: - Pressure range: 300 ~ 1100hPa (altitude 9000 m ~ -500 m); - Working voltage: 1.71 - 3.6VDC; - Low power consumption: 4μA; - High precision: at low-power mode, the resolution is 0.06hPa (0.5 meters); - Temperature output; - Communication interface: I2C or SPI; typical application: - GPS precise navigation (dead reckoning, the upper and lower bridge detection, etc.); - indoor and outdoor navigation; - The weather forecast; - The vertical velocity indication (rise / sink speed);
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Water sensor brick is designed for water detection, which can be widely used in sensing rainfall, water level, and even liquid leakage. Water Detector / Sensor Connecting a water sensor to an Arduino is a great way to detect a leak, spill, flood, rain, etc. It can be used to detect the presence, the level, the volume and/or the absence of water. While this could be used to remind you to water your plants, there is a better Grove sensor for that. The sensor has an array of exposed traces, which read LOW when water is detected.