There are many beautiful ways to use the Arduino. One of my favorite things is having more than one +5 volt and 3.3 volt and ground connections. You can run out quickly. Analog inputs and analog reference signal are clearly marked. The I/O link is clearly marked. The 40-pin cable connector is clearly marked with pin numbers. This connector is ideal for connecting Dupont breadboard wires. This is the second device I've bought from an electronics store. The first was a healthy relay board with two DPDTs. When I saw that they had created this breakout board I bought it without hesitation. I was not disappointed.
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