Blinking LED Circuit Design

flux

You want a 9V-battery-powered circuit that blinks a red LED at ~1 Hz, with an on/off SPST switch, using easy hand-solderable (through-hole) parts.
    1. Add 9V battery input + SPST switch and define a switched 9V rail
    1. Add a through-hole 555 timer (DIP-8) and wire it in astable mode
    1. Add timing R/C parts sized for ~1 blink/second
    1. Add a through-hole red LED + current-limit resistor on the 555 output, plus a decoupling cap
    1. Check ERC/DRC and finalize footprints/BOM for hand soldering
If you click Start on the plan bar, I can implement this in your project.

flux

That file is not an LED blinker schematic. It appears to be an EDA schematic JSON for a multi-channel relay driver/relay board, with parts like:
  • Relay coils/contacts (e.g., “CMA51H-S-DC24V-C” appears in the data)
  • Flyback diodes like IN4007
  • NPN relay drivers like 2N2222AU
  • Power/rectifier diodes like SS310F
  • A buck regulator like LM2596T-ADJG
  • Various Resistor and Connector entries
  • Nets/rails like VCC, GND, and a labeled rail VCC5R
It also does not contain a NE555 / 555-timer “blink/astable” block (no 555/timer/blink/LED-flasher hits in the file search).
What would you like to do with this file?
  • Import parts from it into your current project, or
  • Ignore it and proceed with the 9 V LED blinker circuit design?
Import parts from JSON
Check relay driver sizing
Run design checks
Proceed with LED blinker
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  • Generic Inductor
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    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
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  • Generic Capacitor
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  • Generic Resistor
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