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NOTICE: SparkFun HQ will be closing at 2:00pm MST on Wednesday, December 31st and will remain closed until Friday, January 2nd.
Any orders placed after 12:00 pm MST on 12/31 will not be processed until we resume normal business hours on 01/02/2026. Local pickup will also not be available after 2:00 pm on 12/31. Have a safe and great New Year from all of us at SparkFun!
This is a common 555 timer/oscillator from TI.
This is a common 555 timer/oscillator from TI. A classic for all of those first year circuits projects where you need to blink an LED, generate tone, and thousands of other great beginning projects. Google around for a huge list of resources and example projects.
