Pin5 (GND): Ground Pin. Pin4 (ID2 / RES) : Monitor ID Bit-2 or Reserved. Pin12 (ID1 / SDA): Monitor ID Bit-1 / Data line with I2C bi-directional. Pin11 (ID0 / RES): Monitor ID Bit0 or Reserved. Pin15 (ID3 / SCL): Monitor ID Bit-3 or I2C data clock.
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