# 555 LED Flasher ## Description Simple 5V 555 timer astable LED flasher with red indicator LED, 5V terminal input, timing passives, and local bypass capacitors. ## Project Details - **Owner:** cevousa - **Created:** 5/9/2026 - **Last Updated:** 5/9/2026 - **Visibility:** Public ## Key Components ### D1 — [LTL-307EE](https://www.flux.ai/vasy_skral/ltl-307ee~a2.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Lite-On Inc. - Manufacturer Part Number: LTL-307EE - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1153/LTL-307EE.pdf - Role Details: Red LED driven by U1 output through R1 - Role: Indicator - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### J1 — [282837-2](https://www.flux.ai/lcsc/282837-2~7jff.md) - LCSC Part Number: C592976 - Datasheet URL: https://www.farnell.com/datasheets/3257301.pdf - Manufacturer Name: TE Connectivity(泰科电子) - Package or Case Code: CONN-TH_2P-P5.08_282837-2 - Role Details: 5V input connector; pin 1 = +5V, pin 2 = GND - Part Type: Connector - JLCPCB Part Class: Extended Part - Role: Power input - Manufacturer Part Number: 282837-2 **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [NE555P](https://www.flux.ai/kicad-part-library/ne555p~vhf.md) - Part Type: Precision Timer - Manufacturer Name: Texas Instruments Inc. - Domain: Consumer Electronics - Package or Case Code: DIP-8_W7.62mm - Role Details: 555 timer powered from 5V; generates blink output for D1 - Role: Astable oscillator - Datasheet URL: http://www.ti.com/lit/ds/symlink/ne555.pdf - Manufacturer Part Number: NE555P - Operating Voltage: 5V **Pins:** - CONT [pin 5] - DISCH [pin 7] - GND [pin 1] - OUT [pin 3] - RESET [pin 4] - THRES [pin 6] - TRIG [pin 2] - VCC [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/cevousa/555-led-flasher~ke](https://www.flux.ai/cevousa/555-led-flasher~ke).* --- *Generated from [https://www.flux.ai/cevousa/555-led-flasher~ke](https://www.flux.ai/cevousa/555-led-flasher~ke)*