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For Arduino, AVR chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023), so the minimum voltage of the input voltage detection module is 0.00489Vx5=0.02445V. The MAX471 chip on the board was used to test the consumed current of the load.
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This module can be used to test the current and voltage in the circuit.
The principle of voltage test based on the principle of resistive voltage divider design can make the red terminal connector input voltage 5 times smaller. for Arduino analogue input voltages up to 5 v, the voltage detection module input voltage not greater than 5V x 5 = 25V (if using 3.3V systems, input voltage not greater than 3.3V x 5 = 16.5V).
Package included: 1x Max471 Voltage Current Sensor Voltage Load Detection
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|Dimensions||2.8 × 2.5 × 1.2 cm|
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