12. Output devices#

Group assignment#

measure the power consumption of an output device**

Servo Motor#

We noticed that the voltage level was not constant during motor operation. A large voltage drop happened occasionally.

With the advise of Kamakura instructor, we measured the non stable voltage level with oscilloscope.

  • Connect 0.1Ω cement resistor between the regulator and micro controller.
  • Connect CH1 probe to resistor.(Regulator side)
  • Connect CH2 probe to resistor. (Micon side)
  • Measure the difference between CH1 level and CH2 level using auto calculate function of the oscilloscope.