Group project:
Use the test equipment in your lab to observe the operation of a microcontroller circuit board.
We programmed the board with the code for blinking the LED
Code:
We attach the alligator clip to ground and the probe to the LED pin
We pressed “Autoset” - it didn’t help to calibrate the scale, so we did it manually instead.
We changed the scale for X (time) and Y (Volt)
First we tried X=250ms, Y=2V
We pressed “Run/Stop”(to stop the graph) and discovered an error.
The LED was blinking too slowly (875ms when it was supposed to be 100ms).
We re-burned the bootloader and uploaded the code again, since the clock wasn’t working right.
In the code we set the “Delay” to 1000ms (1 sec)
We changed the scale to X=500ms Y=2V
The signal on the oscilloscope changed about every 2 squares, meaning the reaction of the LED was a bit imprecise.
We have learned that the LED is a bit slow.