Rapid fire mouse button

T

Thread Starter

thsmoker

Joined Nov 7, 2008

3

Nov 8, 2008

• #1

Hi guys, i need some help with this little project, iv made this little circuit that iv found but its not working. when i turn it on i only get 1 mouse click

i could be reading it wrong, im not sure what to do at pin 4 and what does DTS-3 mean?

Is there a better way i could do this?

Thanks
Chris

 

SgtWookie

Joined Jul 17, 2007

22,230

Nov 8, 2008

• #2

Pin 4 of the 555 timer must be connected to +5V.

Note that pin 2 must also be connected to pin 6.

DTS-3 is the part number of the switch. You can use any switch that you wish.

R2 could be increased to 10k, R1 to 75k, and C1 changed to a 0.47uF cap. You'd wind up with about the same frequency, but you can use physically smaller components, and the power utilization will be far less.

 

Wendy

Joined Mar 24, 2008

23,797

Nov 8, 2008

• #3

It's a little unconventional, but OP is showing pin 2 and pin 6 connected. I agree the root problem is pin 4 is not taken to Vcc.

 

T

Thread Starter

thsmoker

Joined Nov 7, 2008

3

Nov 8, 2008

• #4

Thanks so much guys, works a treat!!!!!!!!! now if i reduce the resistance of r1 and r2 will that increase the pules speed?

 

Wendy

Joined Mar 24, 2008

23,797

Nov 8, 2008

• #5

Yes, but too fast and you leave the computer behind. My recommendation is to get the sucker working, then try to improve on it.

 

T

Thread Starter

thsmoker

Joined Nov 7, 2008

3

Nov 8, 2008

• #6

it is working!!!!!!!!!!!! but im only getting 3 pule's a second

Thanks

 

Wendy

Joined Mar 24, 2008

23,797

Nov 8, 2008

• #7

Put a variable instead of the 10KΩ for R1 (and maybe add a 200Ω in series with it to prevent 0 ohms).

 

SgtWookie

Joined Jul 17, 2007

22,230

Nov 8, 2008

• #8

I would prefer using a much smaller capacitor rather than reducing the resistance.

Decreasing the resistance will increase current consumption. Decreasing the capacitor will simply decrease the amount of time it takes to charge the capacitor, thus increasing the frequency of the output.