🔋 [DC 0-25V High-Precision Voltage Sensor Module] This voltage detection module is designed based on the resistive divider principle, which safely scales down an input voltage of up to 25V by a factor of 5. This allows the high voltage to be safely read by the analog input pin of microcontrollers like the Arduino. It is an ideal component for battery level monitoring, power projects, and general electronic experimentation. ✨ Key Features Divider Design: Utilizes a resistive voltage divider circuit to reduce the input voltage by a 5:1 ratio. Wide Voltage Range: Supports a DC voltage input range from 0V to 25V. High Resolution: Analog resolution of 0.00489V (based on a 5V system). MCU Compatible: Works with both 5V and 3.3V microcontroller systems (check maximum input voltage limits accordingly). 📋 Technical Specifications (Parameters) Parameter Value Note Voltage Input Range DC 0V - 25V Refer to the next point for the minimum detectable voltage. Voltage Detection Range DC 0.02445V - 25V Minimum detectable input voltage is approximately 0.02445V. Voltage Analog Resolution 0.00489V Based on a 5V system (5V / 1023). Voltage Division Ratio 5:1 🔌 Wiring Guide Interface Connection Description DC Input (External Power) Positive to VCC, Negative to GND Connects to the DC voltage source (0-25V) you wish to measure. Output Interface (MCU) "+" to 5V/3.3V (Power) Connects to the VCC/power supply pin of your Arduino/MCU. Output Interface (MCU) "-" to GND (Ground) Connects to the common ground of your Arduino/MCU. Output Interface (MCU) "S" to Arduino AD Pin Connects to an Analog Input Pin of the Arduino (e.g., A0, A1).
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