Starting from the left the pins are

  1. VDD - this is power in, can be 3-5VDC
  2. SDA - I2C data in/out, requires a pullup of 2-10K to VDD
  3. GND - this is signal/power ground
  4. SCL - I2C clock in, requires a pullup of 2-10K to VDD

This guide was first published on Mar 07, 2018. It was last updated on Mar 07, 2018.

This page (Pinouts) was last updated on Oct 23, 2021.

Text editor powered by tinymce.