Day 8 - Evaluate hacking toy and 555timer, Oscilloscopes and Servos

While we are doing the  555timer handout
Professor mason needed to evaluate our first project, Hacking a toy

Overall, the score of my robot was pretty high
and I'm really surpised



Later, we were introduced a new chip, the 555 timer

It a very comment chip that it is still using in these modern day

The function of this chip is just control the timing of the output


Follow the schematic

After you are done with it
we replace either R1 or R2 with a 10K pot
and you will get

Later, we change the LED to a sounder
If the LED flashes too fast, we were not able to observed by our eye, but we can observed by the ear

Next, we are going to learn how to use an oscilloscope
After finishing the basic learning function of the oscilloscope

We need to connect the oscilloscope probe to the 555 circuit at pin 3 and another end at the negative leg of the sounder

we are suppose to get this reading on the oscilloscope

and here is the video for changing the pot effect the oscilloscope