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Results tagged with max7219
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user 10003
Refers to the MAX7219 chip, a multiplexing LED driver. Use this tag for discussing the MAX7219 chip.
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Fading the brightness of LEDs using MAX7219 and PWM
However, the low frequency of the Arduino's PWM may lead to flickering if the MAX7219's internal segment current reference driver needs a steady voltage. … I'd choose an op-amp over passive filtering because the current drawn from the Arduino will be negligible and the stability of the current into the MAX7219 will be improved. …
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