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Step 6Circuit Board Assembly - Part 3 of 3
Test all connections -
Since everything is fairly small here, it's quite easy to make a bad solder joint that looks fine to the eye. That's why it's important to test everything. Use a multimeter and test all of the pathways on the board for connectivity. Make sure to test everything, for instance don't touch the probe to the pad that the pin of the chip looks soldered onto, touch the pin itself. Also test the resistance values of your resistors and make sure they match with their expected values.
A small problem now is easy to correct but becomes a big headache if discovered after all the LED strings have been attached.
Since everything is fairly small here, it's quite easy to make a bad solder joint that looks fine to the eye. That's why it's important to test everything. Use a multimeter and test all of the pathways on the board for connectivity. Make sure to test everything, for instance don't touch the probe to the pad that the pin of the chip looks soldered onto, touch the pin itself. Also test the resistance values of your resistors and make sure they match with their expected values.
A small problem now is easy to correct but becomes a big headache if discovered after all the LED strings have been attached.
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Jan 5, 2012. 6:26 AMbgrablin
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I have a couple of these boards for sale. ATTiny45 is per-programmed with the provided script. Email bgrablin at gmail.com, if anyone is interested.
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