Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
RA4 is often open collector, best works with LEDs as a pull to GND.
So 5V to 120ohm resistor to LED Anode then cathode goes to RA4
Turn the LED on by putting a zero on PORTA.4
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