Digital Design

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Digital circuit and logic questions (ie. Logic, Gates, I2C, USB, 555 Timer, etc.)
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A
How to unmultiplex a 7 segment LED display
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Aries2013
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imzack
USB Data Voltages for Charging
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imzack
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D
help needed with smp using 555 and 2n3055
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A
counter design
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7
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9
555 timer help
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8
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M
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Adjusting Period of Square Wave Pulse
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10
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A
Transistor switching ne555 circuit
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ardudriver
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S
PIR to switch a 555 timer
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S
555 PWM Fan controller start up
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11
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S
Tolerance Calculation for Timer 555 (help-plz)?
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M
HDMI Switch controlled by USB Relay Board
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crutschow
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vinodquilon
555 one-shot trigger switch
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tracecom
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S
Which is the best 555 timer??
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Skfir
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C
ALDL to RS232 to USB circuit
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caulfield6
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tracecom
NE555 PWM 2N3904 emitter resistor values
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tracecom
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S
The solution for generating 555
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0
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T
AND, NAND n OR, NOR gates
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WBahn
12
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chrischrischris
USB flash drive checker
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panic mode
9
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M
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New here looking for help with 555 circuit
Last message by
Wendy
3
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Ogu Reginald
wave generation using 555 timer
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Wendy
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