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ARM Cortex-M4 processor
5V Alkaline Number of Batteries 4 Wire Length Approx 140mm Colour White
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APA102C etc
and the short leg is for negative connection
BZV55C9V1 9.1V 500mW Voltage Regulator Zener Diode Round Blue Color LED ARM Cortex-M4 processorThe Voltage regulator diode BZV55C9V1 makes use of the PN junction's reversal properties. PN junction diodes' reverse voltage can be increased to the point where a strong current begins to flow and constant voltage is attained. Both this occurrence and this voltage are referred to as breakdown phenomena. This property is actively used by voltage regulator diodes. Voltage regulator diodes are also referred to as Zener diodes since this breakdown
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