# 9V LED Blinker ## Description Hand-solderable 9V battery-powered red LED blinker using a 555 timer in astable mode, an on/off switch, and through-hole support components for approximately one blink per second. ## Project Details - **Owner:** emasicollins - **Created:** 7/20/2026 - **Last Updated:** 7/20/2026 - **Visibility:** Public - **Operating Voltage:** 9V - **Domain:** Timer - **Power Requirements:** Battery - **Human Interface:** LED - **Forks:** 1 - **Copies:** 2 ## Key Components ### D1 — [LTL-307EE](https://www.flux.ai/vasy_skral/ltl-307ee~a2.md) - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1153/LTL-307EE.pdf - Role Details: Red LED driven by U1 OUT through R3 - Part Type: LED - Manufacturer Name: Lite-On Inc. - Manufacturer Part Number: LTL-307EE - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### J1 — [691311700102](https://www.flux.ai/adrian95/691311700102~52f.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Würth Elektronik - Role: Power Conversion - Role Details: 9 V battery clip connection; positive to BAT_9V and negative to GND - Part Type: Connector - Manufacturer Part Number: 691311700102 - Datasheet URL: https://www.we-online.com/katalog/datasheet/6913117001xx.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW1 — [L101011MS02Q](https://www.flux.ai/adrian95/l101011ms02q~ck2.md) - Role Details: Connects BAT_9V to VCC_SW - Manufacturer Part Number: L101011MS02Q - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switch - Role: Switching - Datasheet URL: https://www.littelfuse.com/assetdocs/littelfuse-ck-slide-l-series-datasheet?assetguid=b0eee6fb-c634-4a1e-9e34-22a5c4b081c8 - Manufacturer Name: C&K **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [NE555P](https://www.flux.ai/adrian95/ne555p~870.md) - Role Details: NE555 astable oscillator powered from switched 9 V - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: NE555P - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fse555 - Symbol Style: parametric-v1 - Role: Signal Generation **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/emasicollins/9v-led-blinker~zk](https://www.flux.ai/emasicollins/9v-led-blinker~zk).* --- *Generated from [https://www.flux.ai/emasicollins/9v-led-blinker~zk](https://www.flux.ai/emasicollins/9v-led-blinker~zk)*