Current Voltage Detection Module

Description

• Measure the voltage and current in the circuit
• Adopts MAX471 chip, the module directly uses the detected power supply
• The minimum voltage input detected by this module is 3V
• The principle of voltage test based on principle of resistive voltage divider design, which reduces the voltage at the terminal interface input by 5 times. Arduino analog input voltage is a maximum of 5V, then the input voltage of the voltage detection module can not be greater than 5V × 5 = 25V (if you use a 3.3V system, the input voltage can not be greater than 3.3Vx5 = 16.5V)