Max471 Voltage and Current Sensor Module

Max471 Voltage and Current Sensor Module

Max471 Voltage and Current Sensor ModuleUsed to test the product current and voltage. The voltage test principle, based on the resistive voltage divider design principle, can make the red terminal connector input voltage 5 times smaller. For Arduino analog input voltages up to 5V, the voltage sensing module input voltage is not greater than 5Vx5 = 25V (if 3.3V systems are used, the input voltage is not greater than 3.3Vx5 = 16.5V). Since Arduino AVR chips have 10 bit AD, this module simulates a resolution of 0.00489V (5V / 1023), so the minimum voltage of the input voltage sensing module is 0.00489Vx5 = 0.02445V. Max471 IC on the board is used to test the consumed current of the load.

Max471 Voltage and Current Sensor Module Technical Specifications

• Measurable voltage range:
  • For Arduino boards using 5V: 3-25V DC
  • For Arduino boards using 3.3V: 3-16.5V DC
• Measurable current range: 0-3A DC

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