{"product_id":"0-25v-voltage-sensor-module-for-arduino-projects","title":"0-25V Voltage Sensor Module for Arduino Projects","description":"\u003ch1\u003e0-25V Voltage Sensor Module for Microcontrollers\u003c\/h1\u003e\n\n\u003cp\u003eThis voltage sensor module allows you to measure DC voltages up to 25V using any microcontroller with an analog input. It employs a precision resistor voltage divider to scale the input down to a safe 0–5V range, making it ideal for battery monitoring, power supply testing, and data logging projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0–25V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e0–5V analog (proportional)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDivider Ratio\u003c\/td\u003e\n\u003ctd\u003e5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResistor Tolerance\u003c\/td\u003e\n\u003ctd\u003e1%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e3-pin (GND, S, VCC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e28mm x 14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-solar-panel-voltage-monitor\"\u003eReal-time battery voltage monitor for solar or automotive systems\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eData logger to track voltage fluctuations over time\u003c\/li\u003e\n  \u003cli\u003eSimple DC power supply tester with Arduino display\u003c\/li\u003e\n  \u003cli\u003eOvervoltage detection circuit with alarm or relay cutoff\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned for 5V microcontrollers like Arduino Uno, Nano, and Mega. For 3.3V boards (ESP8266, ESP32), the measurable range is limited to 0–16.5V unless an additional voltage divider is used on the output. Always share a common ground between the measured circuit and the microcontroller.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the module's GND pin to the microcontroller's GND, and the S (signal) pin to an analog input (e.g., A0). The VCC pin is typically unused in basic configurations. Attach the voltage source to the screw terminals, observing polarity. Use the formula \u003ccode\u003eInput Voltage = (analogRead() * 5.0 \/ 1023) * 5\u003c\/code\u003e for Arduino’s 10-bit ADC.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, it connects directly to any 5V Arduino board. Wire GND to GND and S to an analog pin; no extra components needed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I measure voltages above 25V with this module?\u003c\/summary\u003e\u003cp\u003eNo, exceeding 25V DC input may damage the module. For higher voltages, use an appropriately rated external voltage divider.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this module require an external power supply?\u003c\/summary\u003e\u003cp\u003eNo, it is a passive circuit. It only needs the voltage to be measured and a common ground with your microcontroller.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445024645485,"sku":"CDN-0766","price":25.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/download_c26164f4-329a-4719-9864-1375985ca9a3.jpg?v=1781522154","url":"https:\/\/compoden.com\/products\/0-25v-voltage-sensor-module-for-arduino-projects","provider":"Compoden","version":"1.0","type":"link"}