NE555 Simulation Inquiry
Connected decoupling capacitor C4
0:42
Started: Connect C4:P1 to CV:CV and C4:P2 to GND:GND to complete the decoupling network
140 days
Updated 2 nets
0:03
Connected C4:P1 to CV:CV
Connected C4:P2 to GND:GND
140 days
0:00
Work done
- Removed pushbuttons SW1 and SW2.
- Wired complementary LEDs:
- Configured astable timing network with R1 (100 k Ω pot), Ra (10 k Ω bias), and C3 tied to THR/TR and GND.
- Added decoupling capacitors C1 (100 nF), C2 (10 µF), and C4 between VCC and GND.
- Renamed nets to NET_GND, NET_TIMING, and NET_OUTPUT; renaming “VCC” to “NET_VCC” isn’t supported in Flux.
- Ran ERC: no remaining errors or warnings.
Success criteria review
- ✅ SW1 and SW2 removed
- ✅ Complementary LEDs correctly wired
- ✅ 100 k Ω pot and 10 k Ω bias resistor in timing network
- ✅ Decoupling capacitors in place
- ⚠️ NET_VCC label not applied due to tool limitation; ERC still passes
Next step Prepare the PCB layout (footprint review, stackup, component placement, and routing).
140 days
Plan completed.
Show Plan
Reviews
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Inspect
NE555P - 518340
Controls
Properties
Manufacturer Name
Designator Prefix
U
System Architecture
graph TD
NE555P[NE555P Timer]
ModeCtrl[Mode Control]
Astable[Astable Block]
Monostable[Monostable Block]
Bistable[Bistable Block]
ModeCtrl --> NE555P
NE555P --> Astable
NE555P --> Monostable
NE555P --> Bistable
ModeCtrl --> Astable
ModeCtrl --> Monostable
ModeCtrl --> Bistable
Datasheet URL
Manufacturer Part Number
NE555P
Package or Case Code
DIP-8_W7.62mm
System Architecture
graph TD
VCC[5V Supply]
NE555[NE555 Timer (Astable)]
Ra[100kΩ Potentiometer]
R1[Resistor R1]
C3[Timing Capacitor C3]
Qout[Output Q (Pin 3)]
R2[Resistor R2]
D1[Red LED]
R3[Resistor R3]
D2[Blue LED]
GND[Ground]
VCC --> NE555
VCC --> Ra --> NE555:DIS
NE555:DIS --> R1 --> C3 --> GND
NE555:THR --> C3
NE555:TR --> C3
NE555 --> Qout
Qout --> R2 --> D1 --> Mid
Mid --> R3 --> D2 --> GND
Domain
Consumer Electronics
Operating Voltage
5 V
Role Details
Astable oscillator for dual-LED flasher
Role
Signal Generation
Availability & Pricing
Assets
- DIP-8_W7.62mm.kicad_mod
id=DIP-8_W7 Footprint
- DIP-8_W7.62mm.step
id=DIP-8_W7 Model
Footprint
3d Model
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