Digital Design

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Digital circuit and logic questions (ie. Logic, Gates, I2C, USB, 555 Timer, etc.)
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E
Default state of GPIO expander
Last message by
nsaspook
1
Replies
360
Views
johnyradio
Ternary Logic with a Single Optoisolator?
Last message by
johnyradio
13
Replies
730
Views
B
Anyone on the forum know about PIC16F84 ASM and 1602 LCD displays?
Last message by
Embededd
2 3
50
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3K
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hmzblgn
Power on -off circuit : Long press to Turn on instead Short Press
Last message by
AnalogKid
2
30
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2K
Views
K
Decoder Encoder With 4017 Circuit Without Microcontroller.
Last message by
KRAB
3 4 5
90
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4K
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Philexium
Driving a LED with a CD4066 and a ramp generator
Last message by
sghioto
2
25
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1K
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A
drive mosfet with 3.3V, minimal component count (revisited)
Last message by
panic mode
6
Replies
5K
Views
beginner99
I remade this pi metal detector circuit, only this time it doesn't work, what's the culprit?
Last message by
panic mode
2
20
Replies
2K
Views
T
COA books to supplement hayes?
Last message by
simozz
9
Replies
530
Views
G
74HC595 Shift register - Data and Clock Timings advice sought please
Last message by
panic mode
16
Replies
906
Views
H
Astable oscillator using transistor, capacitor and resistor and change duty cycle automatically
Last message by
hhsting
2 3 4
66
Replies
3K
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M
Can we use this 4 bit adder commercially?
Last message by
MisterBill2
2 3
53
Replies
3K
Views
H
fast and accurate 3.3V to 5V level shifter for NeoPixel addressable LED WS2812b WLED ESP32 project needed
Last message by
Ian0
19
Replies
10K
Views
Gr10
How to implement the combinational logic block of FSM using Combinational Analysis?
Last message by
drjohsmith
8
Replies
816
Views
minte_7
How to avoid unwanted activations when connecting USB-C to a circuit with MOSFET-controlled ground?
Last message by
MisterBill2
8
Replies
665
Views
8
Value of Current Limiting Resistors
Last message by
820L
10
Replies
596
Views
Gr10
How to get the output equation in a three bits output mealy fsm?
Last message by
dl324
2
Replies
527
Views
C
PH Probe circuit help
Last message by
wayneh
6
Replies
839
Views
hrs
CMOS 4000 frequency counter
Last message by
MisterBill2
14
Replies
3K
Views
D
Invertor question
Last message by
MisterBill2
8
Replies
577
Views
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