Input Devices

Probing Sensor Data with Oscilloscope [Groupwork]

For our groupwork this week, we decided to probe the Quadrature Encoders.

Probing Quadrature Encoders

Quadrature encoders are perfect sensors to probe with an oscilloscope.

  • They require 2 channels, which will give us a nice demo to watch.
  • They are timer dependent, channel 1 leading will mean it's going in one direction while channel 2 leading will mean it's going on the other direction.

Connection:

  • Board ----------------Oscilloscope
  • GND ----------------- GND probe for both channel 1 and channel 2
  • CLK ----------------- Channel 1 positive probe
  • DT ----------------- Channel 2 positive probe

Then we pressed 'autoset' on the scope to give us the following video