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Table 5 Connectors of the INA169 current sensor module

From: Low-cost virtual instrumentation of PV panel characteristics using Excel and Arduino in comparison with traditional instrumentation

Pin symbol Descriptions
VCC is connected to the Arduino VCC (+ 5 V), this is the power supply to the INA169
GND is connected to the Arduino ground, this is the same electrical point as the low side of the source (PV panel)
VIN+ is connected to the positive side of the source.
VIN− is connected to the positive side of the load
VOUT is connected to an Arduino analog input, this is the measured output