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Sparkfun 555 Timer
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Product details
| Management number | 234961460 | Release Date | 2026/07/02 | List Price | $0.49 | Model Number | 234961460 | ||
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| Category | |||||||||
- Sparkfun 555 Timer
- Offers timing from microseconds to hours
- Provides astable or monostable operation
- Features adjustable duty cycle
- TTL-Compatible output can sink or source up to 200 mA
The Sparkfun 555 Timer is a common 555 timer/oscillator from Texas Instruments. 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.
This timer can be used for several applications as Fingerprint- and Iris-Biometrics or an RFID-Reader.
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