I am on a chapter of my electronics beginner’s book where the author talks about the PICAXE microcontroller. One of the first things the author mentions in this chapter is to make sure that the PICAXE microcontroller power source capacitor configuration looks something like this:
Right of the bat this configuration looks strange to me because of the need for using two different types of capacitors in parallel. My first thought was why not just combine the two capacitors and use one bigger one instead?
Also, interesting to note is that the bigger capacitors sit further away from the LM7805 than the smaller capacitors. Why not place them the other way around? There must be a good reason for this.
Could someone offer an explanation for this awkward capacitor configuration need?