EXERCISE #1
In the first exercise, hooked a fan up to our relay and used the relay program from the previous class to toggle the fan on and off. Afterwards, we modified our relay program to be able to use a duty cycle with the fan. This will turn the switch on and off at a high frequency in order to send a lower average voltage to the fan which gives it a range of speeds to spin. We also connected a photogate to LabQuest in order to determine the RPM of the fan. The knob on the left adjusts the duty cycle to run the fan at a certain percentage of full power, and the RPM numeric indicator on the right shows us how fast the fan is spinning.
Front Panel
Block Diagram
EXERCISE #2
For this exercise, we were told to create an LED thermometer that will give a visual indication of the reading from a temperature probe.
Front Panel
Block Diagram
Front Panel
Block Diagram
EXERCISE #2
For this exercise, we were told to create an LED thermometer that will give a visual indication of the reading from a temperature probe.
Front Panel
Block Diagram
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