Hey I am trying to design a frequency generator ranging from .25hz to 25hz approximately, while having a constant duty cycle that is as small as possible, preferably ~5%. The design I am currently using includes a 555 timer, but I am not sure if it can produce what I am looking for. Would really appreciate your advice. Thanks.
Here is the circuit I am using: http://www.instructables.com/files/orig/FJJ/V35I/GBF5KOPV/FJJV35IGBF5KOPV.jpg
Here is the circuit I am using: http://www.instructables.com/files/orig/FJJ/V35I/GBF5KOPV/FJJV35IGBF5KOPV.jpg