Digital Design

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Digital circuit and logic questions (ie. Logic, Gates, I2C, USB, 555 Timer, etc.)
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Track99
How do I connect a teeny LED to an Arduino?
Last message by
WBahn
3
Replies
843
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Zephiroxz
Can anyone explain how this circuit works?
Last message by
WBahn
5
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944
Views
D
Reverse polarity DC motor cyclic timer
Last message by
MaxHeadRoom
2 3
59
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6K
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Icanmakeit67
Simplest flip flop
Last message by
Icanmakeit67
2 3
40
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3K
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H
Tasmota Wemos D1 MQTT SG90 servo control PCA9685 IIC I²C over WLAN
Last message by
huramentzefix2
0
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2K
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T
V monostable 555circuit
Last message by
MrChips
3
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549
Views
A
NC7SZ373 TRANSPARENT LATCH
Last message by
alanj100
6
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953
Views
Icanmakeit67
Flickering DC power
Last message by
ElectricSpidey
19
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1K
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Parapara29
Something wrong with the circuit-ESP-32s not working as intended.
Last message by
Irving
2
20
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3K
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Icanmakeit67
Servo Help
Last message by
MisterBill2
16
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2K
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lavamanczgames
Attiny1606 burning out when connected to a drv8251
Last message by
lavamanczgames
3
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1K
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K
4K signal generator from digital circuits
Last message by
nsaspook
6
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1K
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R
Counter IC circuit needed to divide by 430khz to 1?
Last message by
MisterBill2
2
29
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3K
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S
Basic N555 Square Wave Generator Circuit
Last message by
sab201
2
21
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3K
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ph0x
On/Off switch will turn relay on, but will not turn relay off.
Last message by
ph0x
7
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1K
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S
[SOLVED] CD4017 reset issue
Last message by
Sebbi
2
31
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5K
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G
  • Locked
Having trouble with ftdi2232H Usb <--> Serial
Last message by
Ya’akov
1
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4K
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X
Having trouble with ftdi2232H Usb <--> Serial (2)
Last message by
xbbncvg
0
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1K
Views
mongkon
IC 4017 output modification
Last message by
ElectricSpidey
2 3
42
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5K
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H
Modifying a simple bi-polar LED circuit
Last message by
eetech00
2
39
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4K
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