Pinouts

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 21, 2019.