D
David White
- Jan 1, 1970
- 0
I would like to build a circuit that will gate a 40KHz ultrasonic
transmitter at a user-adjustable (via pot) frequency between 1 and
10Hz.
Power supply will be four 3.7 Li-ion batteries. Below is the part I am
intending to use, since it will operate down to 10V.
http://au.element14.com/multicomp/sq-40-t-10b/transmitter-ultrasonic/dp/213214
So I know where to start, what would be the most efficient design
approach for this project?
So far, I am considering to modify this LM555 police siren circuit.
http://www.circuitstoday.com/police-siren-using-ne555
Or this:
http://rbt-techdepot.blogspot.com.au/2011/04/modulated-38khz-ir-driver.html
Thank you for any suggestions.Does anyone have any better suggestions?
David White
transmitter at a user-adjustable (via pot) frequency between 1 and
10Hz.
Power supply will be four 3.7 Li-ion batteries. Below is the part I am
intending to use, since it will operate down to 10V.
http://au.element14.com/multicomp/sq-40-t-10b/transmitter-ultrasonic/dp/213214
So I know where to start, what would be the most efficient design
approach for this project?
So far, I am considering to modify this LM555 police siren circuit.
http://www.circuitstoday.com/police-siren-using-ne555
Or this:
http://rbt-techdepot.blogspot.com.au/2011/04/modulated-38khz-ir-driver.html
Thank you for any suggestions.Does anyone have any better suggestions?
David White