This tutorial will guide you How to measure water quality and other parameters ? and How to use with Arduino? In this tutorial we use analog pH meter sensor, specially designed for Arduino controllers and has built-in simple, convenient and practical connection and features. It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. To use it, just connect the pH sensor with BNC connector, and plug the PH2.0 interface into the analog input port of any Arduino controller.
Attention: In order to ensure the accuracy of the pH probe, you need to use the standard solution to calibrate it regularly. These standard calibration solutions come with this pH sensor. Generally, the period is about half a year. If you measure the dirty aqueous solution, you need to increase the frequency of calibration. Continue reading pH Measurement with Arduino
Tag Archives: measurement
Soil Moisture Measurement using Arduino
Soil Moisture Sensor can be used to detect water level on the soil, if the soil moisture is depleted it will send a signal to HIGH or give corresponding analog output. This sensor uses two probes to pass the current through the soil, and it reads resistance to get the moisture level, the more water into the soil the more soil conduct the electricity easily. Less resistance if the soil is dry.
The module uses a LM393 precision voltages comparator capable of single or split supply operation. Continue reading Soil Moisture Measurement using Arduino
Arduino Rain Sensor Interfacing
Rain Sensor Module
Rain Sensor module allows to measure moisture via analog output pins and it provides a digital output when a threshold of moisture is exceeded. The module is based on the LM393 op amp. It includes the electronics module and a printed circuit board that “collects” the rain drops. As rain drops are collected on the circuit board, they create paths of parallel resistance that are measured via the op amp. The lower the resistance (or the more water), the lower the voltage output. Conversely, the less water, greater the output voltage on the analog pin. A completely dry board for example will cause the module to output five volts. Continue reading Arduino Rain Sensor Interfacing
Arduino Air Pressure Measurement
Definition
Pressure is defined as force per unit area that a fluid exerts on its surroundings. You can measure this force by detecting the amount of deflection on a diaphragm positioned inline with the fluid. Given the known area of the diaphragm, pressure can then be calculated. Pressure sensors are packaged with a scale that provides a method to convert to engineering units. The SI unit for pressure is the Pascal (N/m2), but other common units of pressure include psi, atmospheres, bars, inches of mercury, millimeters of mercury. Continue reading Arduino Air Pressure Measurement
Arduino Pressure Measurement – BMP180
Definition
Pressure is defined as force per unit area that a fluid exerts on its surroundings. You can measure this force by detecting the amount of deflection on a diaphragm positioned inline with the fluid. Given the known area of the diaphragm, pressure can then be calculated. Pressure sensors are packaged with a scale that provides a method to convert to engineering units. The SI unit for pressure is the Pascal (N/m2), but other common units of pressure include psi, atmospheres, bars, inches of mercury, millimeters of mercury. Continue reading Arduino Pressure Measurement – BMP180