Digital Circuit Design

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Digital circuit and logic questions (ie. Logic, Gates, I2C, USB, 555 Timer, etc.)

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Page 1 of 24
  1. candro

    Input counter for Jeopardy type of game

    candro, Aug 21, 2017 at 9:21 AM
    Last message by candro Aug 22, 2017 at 8:14 AM
    Replies:
    10
    Views:
    154
  2. ajoshi

    How to find QX5252F in Autodesk Eagle?

    ajoshi, Aug 21, 2017 at 7:15 PM
    Last message by ajoshi Aug 21, 2017 at 7:15 PM
    Replies:
    0
    Views:
    40
  3. DoctorWkt

    Multiplexer Recommendations

    DoctorWkt, Aug 20, 2017 at 6:23 AM
    Last message by DoctorWkt Aug 20, 2017 at 7:06 PM
    Replies:
    5
    Views:
    193
  4. sa bassesse

    Non Contact ECG recording

    sa bassesse, Aug 18, 2017 at 10:04 AM
    Last message by Raymond Genovese Aug 19, 2017 at 11:42 PM
    Replies:
    8
    Views:
    246
  5. Tarcontar

    Serial amplifier circuit

    Tarcontar, Aug 10, 2017
    Last message by Tarcontar Aug 18, 2017 at 9:53 AM
    Replies:
    20
    Views:
    307
  6. rafi533

    extending the distance of an micro SD card reader

    rafi533, Aug 17, 2017 at 9:19 AM
    Last message by Papabravo Aug 17, 2017 at 4:38 PM
    Replies:
    3
    Views:
    103
  7. sabareeshchambayil

    Temperature controlled fan using 555 and opamp

    sabareeshchambayil, Aug 15, 2017
    Last message by wayneh Aug 17, 2017 at 3:52 PM
    Replies:
    13
    Views:
    217
  8. viraj.dali

    Calculation of pull-up resistor

    viraj.dali, Aug 11, 2017
    Last message by AnalogKid Aug 17, 2017 at 8:00 AM
    Replies:
    12
    Views:
    214
  9. pdp993

    LTC1923 TEC controller

    pdp993, Aug 16, 2017
    Last message by ebeowulf17 Aug 17, 2017 at 12:22 AM
    Replies:
    1
    Views:
    71
  10. ranood

    Driving an IR LED (IR Emitter)

    ranood, Aug 15, 2017
    Last message by ScottWang Aug 16, 2017
    Replies:
    3
    Views:
    120
  11. hzuiel

    How to control PWM fan

    hzuiel, Aug 15, 2017
    Last message by MaxHeadRoom Aug 15, 2017
    Replies:
    5
    Views:
    103
  12. patpin

    analog to digital with opamp and NAND inverter; LTspice ultraslow

    patpin, Aug 12, 2017
    Last message by patpin Aug 15, 2017
    Replies:
    18
    Views:
    374
  13. Aagash

    Analog input range - DAQ ni6009

    Aagash, Aug 14, 2017
    Last message by Aagash Aug 14, 2017
    Replies:
    0
    Views:
    54
  14. Engr Tech

    How does a single-phase inverter connect to a split phase grid?

    Engr Tech, Aug 13, 2017
    Last message by shortbus Aug 14, 2017
    Replies:
    1
    Views:
    109
  15. DoctorWkt

    Suggestions for a UART for an 8-bit Breadboard CPU

    DoctorWkt, Aug 10, 2017
    Last message by ian field Aug 10, 2017
    Replies:
    6
    Views:
    187
  16. Oğulcan Coşkunol

    Designing a demux for even odd integers

    Oğulcan Coşkunol, Aug 9, 2017
    Last message by WBahn Aug 9, 2017
    Replies:
    3
    Views:
    137
  17. pavo real

    timer circuit with relay output

    pavo real, Aug 2, 2017
    Last message by ebeowulf17 Aug 9, 2017
    Replies:
    43
    Views:
    688
  18. ebeowulf17

    Opinions wanted: best cd4060 sim for LTspice

    ebeowulf17, Aug 5, 2017
    Last message by ericgibbs Aug 9, 2017
    Replies:
    48
    Views:
    945
  19. ZomBoSk8r

    74HCT74 what in the world is this logic gate circuit?

    ZomBoSk8r, Aug 8, 2017
    Last message by GopherT Aug 9, 2017
    Replies:
    9
    Views:
    156
  20. sgr

    RC Delay Circuit.

    sgr, Aug 8, 2017
    Last message by eetech00 Aug 8, 2017
    Replies:
    6
    Views:
    156
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