Hello, We are building an Arduino Keyboard following this project: Arduino Project Hub . It worked, and then out of curiosity we switched the 221 ohm resistor with a 150 ohm resistor. When that did not work, we put the 221 ohm resistor back in, but the keyboard stopped working. What could have gone …

Arduino Resistance Changing

ReverseEMF April 5, 2018, 10:15pm 4

If you were thinking that a 220Ω resistor is a 221Ω resistor. Then, maybe that "150Ω" resistor was really a 15Ω resistor, which could have fried something.

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Arduino Resistance Changing

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