Programmable Third Brake Light Flasher - PIC12F629

[bananasiong]

Thanks kchriste.
In the darlington pair, I see there are two resistor built in. Each of the transistor has one resistor across the base and emitter as attached.
So the 200 hm: resistor is used for the purpose that we were discussing, then what about the 5 khm: resistor? Same purpose? To prevent any leakage current to the base of the transistor to turn it on?

 

[Nigel Goodwin]

Yes, the same reason.

 

[delokaver]

help

hi ...

is this possible to modified the signal out from PIC to be in negative ?
2n222 is NPN --- base bias current is + (P)

since i have the 2 main light with common negative (-) so i can not use the NPN, if i use this the other lamp will be screw up.

my idea is driving the output signal from PIC dirrect to P chanel mospec.

i am testing the diagram above with N chanel mospec and it's work perfectly without using the 2n222 as a driver and without any resistor -- (for simplest way) LOL ....

tested with buld instead of led and the speed is prety good.

any idea ??

 

[stress]

hi, can you give me the hex files for this project ? thanks

 

[tedas01]

Hello could you send the hex file of this project.

 

[Kinderu56]

Hello could you send the hex file of this project,to kinderu56@yahoo.com.

 

[Kinderu56]

Please can you give me the hex files for this project ? thanks . kinderu56@yahoo.com.

 

[JimB]

Please note that Gayan Soyza has not visited the forum since June last year.

JimB