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10 years, 8 months ago.
led on and off
i have an op from 555 timer i have connected that to not gate so that its not directly given to controller(bcoz it might damage my board)i need to measure the ton and toff time f led could any one suggest me hw, i am using digitalinout(p5) and timer but not gettin accurate value????????????????
1 Answer
10 years, 8 months ago.
Why don't you use a pwm
i am trying to generate a sine wave through 555 timer and filter then provide tht to sensor and read back d values from sensor to mbed. i hav 50 hz sine wave now i need to check the rms voltge f tht wave which i get back from sensor.. hope u suggest me
posted by 25 Apr 2014You can do it , but make sure that the voltage is not bigger than you vref of you embed what you have to do is the 555 then the opamp as derivative or integrated" depends" the sensor and the mbed on a analog in, if you have any problems you can send me an email oscargrodri@hotmail.com
posted by 25 Apr 2014