I'm working on my first PICaxe project and am having a little trouble with the very first step: the power supply! I'm pretty much brand new to hands-on electronics so bear with me.
I purchased a brand new LM7805C voltage regulator from Radio Shack last night, set it up with a a 100uF cap & .1uF cap on both the input and output sides (as recommended by the book I'm working out of). When I set it up with a 9v 1200mA power supply (AC/DC adapter), I read 9.15v on the input side and 8.35v on the output side. I was assuming I'm supposed to get 5v out but the documentation that comes with the component is pretty scarce. Since the book indicates the PICaxe is very sensitive I can't move forward until I'm getting 5v out of this thing.
So...I went out an bought a second one tonight, applied the 9v to it directly (no capacitors involved) and measured the voltage from both sides and received the same readings. Seems unlikely it's a problem with the component, but I'm not sure what I'm doing wrong. I'm glad to read about it in one of the ebooks if there is a section you can point me to. Thanks for any help you can provide.
I purchased a brand new LM7805C voltage regulator from Radio Shack last night, set it up with a a 100uF cap & .1uF cap on both the input and output sides (as recommended by the book I'm working out of). When I set it up with a 9v 1200mA power supply (AC/DC adapter), I read 9.15v on the input side and 8.35v on the output side. I was assuming I'm supposed to get 5v out but the documentation that comes with the component is pretty scarce. Since the book indicates the PICaxe is very sensitive I can't move forward until I'm getting 5v out of this thing.
So...I went out an bought a second one tonight, applied the 9v to it directly (no capacitors involved) and measured the voltage from both sides and received the same readings. Seems unlikely it's a problem with the component, but I'm not sure what I'm doing wrong. I'm glad to read about it in one of the ebooks if there is a section you can point me to. Thanks for any help you can provide.