I need help, I am beginner , I want to learn something by doing some work on hardware I bought some electronics lab tools and component
I want to blink Led using microcontroller
microcontroller -p89v51rd2
breadboard
wires black, yellow
battery 9 v dc
Electrolytic Capacitors 1000 μF
diode 1n4007
Ceramic Capacitors 22 ρf
7805 regulator
LED
crystal oscillator
I have made some connection on breadboard how to know that my controller and programmer circuit is working correctly
so I used multimeter I measured supply voltage for microcontroller I got 3.95 vdc and I saw 3.65 vdc for programmer circuit
so I am wrong or I am correct ?