1. Attach 3 resistors and a capacitor: solder 2 of 1k ohm (brown-black-red-gold) resistors and 1 of 10k ohm (brown-black-orange-gold) resistor and 0.1uF ceramic capacitor (need to bend legs) where they are marked on the bottom
2. Flip it over, put the 28-pin DIP socket (socket only while you are soldering, DO NOT insert the ATmega328p yet), the ceramic resonator (3 legs, 16MHz, with built-in capacitors), and 2 LEDs (color doesn’t matter: green for Power and red for d13 or other way. It’s your choice) on the top layer and solder them.
3. Now it’s time to attach male headers (Note: Depending on your project or your preference, you can put female headers or simply solder wires directly to the holes or right angle headers or whatever :-).
In order to solder the headers nicely (perpendicular to the PCB), you can use breadboard to support headers.
That’s it! Now it is ready to use.
So simple, isn’t it?
Even though pin numbers and names and PWM(~) signs are printed next to their pins, due to their small sizes, it is really hard to see with bare eyes. So I marked with black permanent marker on the side of the PCB around the FTDI pins and between the digital pins and analog pins on the other side as shown below. It really helps!
Have any questions? Please leave comments.
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