7. Electronics design

Group assignment

Use the test equipment in your lab to observe the operation of a microcontroller circuit board


We used the multimeter to check the microcontroller , Button , and LED voltage when powered.

Measures Value
VCC - GND 4,9V
Blinking LED 0V to 4,9V
Button voltage 5V released, 0V pressed

When measuring the voltage in the LED during the blink program, we needed to lower the blink speed to get a readable measure.

The same measure with an oscilloscope.

Visualization of the PWM.