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Explanation for how each pin is connected

A project log for Essentials Board

A universal breakout board that takes care of power and clock for SMD microcontrollers. Just apply power!

ben-limBen Lim 07/20/2021 at 08:430 Comments

Each pin is connected to a 0603 pad and a Normally Open (NO) pad. One end of the 0603 pad is connected to the pin, and the other end is connected to ground.  One end of the NO pad is connected to the pin, and the other end is connected to power.

To connect it to ground

1. Put a 0603 0 ohm resistor in the pad and don't bridge the NO pad.

To connect it to 3.3V with filtering

1. Put the appropriate capacitor on the pad (if you need multiple, you can stack the capacitors).

2. Apply a solder blob to the NO pad to close it. Now the pin is connected to power with a capacitor to ground.

To pull it down

1. Put an appropriate resistor on the pad

To pull it up

1. (challenging) Bridge the NO pad with a 0603 resistor.

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