Similar test for I2C SDA signal for the “3-axis Acceleration” module running the sketch from “Lesson 10: Sensing Movement”
New board with “3-axis Acceleration” module removed and connected with I2C/IIC/Grove cable.
Fails with “LIS3DHTR didn’t connect.” Note that the SDA signal isn’t transitioning completely to LOW.
Old board with “3-axis Acceleration” module in place, not removed. Works correctly:
