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#Post#: 1167-------------------------------------------------- |
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GPIO pins |
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By: millennial Date: September 20, 2016, 9:33 am |
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I have (probably) a simple question for Electrical Engineering |
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experts. Why are there two rows of GPIO pins? It seems as though |
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the mc-Module GPIO pins are doubled in count. I am assuming it |
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would be bad to connect each of the 14 columns together by |
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attaching a breadboard to all 28 pins because of possibly short |
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circuiting the board? |
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Are there two rows so that we can output to two devices based on |
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the state of one pin? I'm looking for 5th grader like knowledge. |
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#Post#: 1168-------------------------------------------------- |
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Re: GPIO pins |
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By: millennial Date: September 20, 2016, 9:55 am |
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Two pictures are worth 2000 words. Is this a bad idea? |
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The pins are in rows i and j, and columns 1-14. |
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#Post#: 1171-------------------------------------------------- |
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Re: GPIO pins |
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By: mc-Josh Date: September 21, 2016, 10:20 am |
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You are correct, the pins directly across from each other are |
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duplicated (pins 1 and 2 are 3V3, pins 3 and 4 are PIN0, pins 5 |
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and 6 are PIN1, and so on). As long as you only connect the pins |
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with the same signal together (pin 3 to pin 4 for PIN0) you will |
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not have any problems. |
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#Post#: 1174-------------------------------------------------- |
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Re: GPIO pins |
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By: millennial Date: September 21, 2016, 12:02 pm |
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Great, makes sense. Thank you. |
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