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- 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.
- 1 x Sparkfun 555 Timer
- 4.5 to 16 V supply
- 8-pin DIP package
- Timing from microseconds to hours
- Astable or monostable operation
- Adjustable duty cycle
- TTL compatible output
- Sink or source up to 200 mA