The 0-25V Voltage Sensor Module allows you to use the analog input of a microcontroller to monitor voltages much higher than it is capable of sensing. The Voltage Sensor Module is a simple but very useful module that uses a potential divider to reduce an input voltage by a factor of 5. You can purchase all the components from Amazon. The list of materials required for this project are as follows. This voltage measurement circuit is small & portable and you can use it to detect under or over-voltage faults in electrical circuits. We will then use a small 0.96″ I2C OLED Display to observe the output voltage. ![]() In this project we will first interface the voltage sensor module with Arduino and measure the different Battery voltages. This is the reason why you can measure the voltage up to 25V using the 5V analog pin of any microcontroller. It reduces the input voltage signal by the factor of 5 and generates a corresponding analog output voltage. The voltage sensor module is a 0-25 DC voltage sensing device that is based on a resistive voltage divider circuit. ![]() Earlier, we made 0-50V DC Voltmeter to measure the output voltages & also learned about the DC−to−DC converters. In this tutorial, we will learn interfacing of 0-25V DC Voltage Sensor with Arduino to measure DC Voltages. Making Portable Voltage Detector with OLED Display. ![]()
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