Robotbanao Single Phase Voltage Sensor | Voltage Transformer Module compatible with Arduino Electronic Components Electronic Hobby Kit

Voltage sensor module 25v is a simple but very useful module which uses a potential divider to reduce any input voltage by a factor of 5. This allows you to use the analogue input of a microcontroller to monitor voltages much higher than it capable of sensing. For example with a 0-5V analogue input range you are able to measure a voltage up to 25V. The voltage sensor module also includes convenient screw terminals for easy and secure connection of a wire. This voltage detector module is based on principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller. An overview of the available Pins of the Voltage Sensor Module. Basically, a 25V Voltage Sensor, like the one used here, has 5 pins in total. Two of them are on the two-pin screw terminal and three are male header pins. The Screw Terminal pins are marked as VCC and GND and they must be connected to the external source of voltage i.e. the voltage that needs to be measured. Coming to the three male headers, they are marked as S, + and –. The S pin is the “Sense” pin and it must be connected to the Analog Input. The “–” pin must be connected to the GND. The pin marked as “+” is not connected to anything (it is an N/C Pin). Microcontroller analog input voltages up to 5 v, the voltage detection module input voltage not greater than 5Vx5=25V (if using 3.3V systems, input voltage not greater than 3.3Vx5=16.5V). Controller which chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023), so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V. Specification: Divider ratio: 5:1 Resistor Tolerance: 1% Max input voltage: 25V Resistor Value: 30K/7.5K Ohm