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hi all
if the power supply and controller are getting heat up, then remove the controller and other IC's and switch on the system. ad measure the supply voltage on the mcu VSS and VDD with polarity.just make sure the your PCB is fine in their tracks.and no short in thatif it's ok you can connect...
hi
thank you once again
i understood the diagram
but my confusing part is that we put a 10K resistor to the 12V and connected the same to the MCU pin
so the 12V is available at the pin.will it not harm the controller?
i am not much expert in hardware.could you please explain the same?
and...
hi horace
thank you for the reply
according to your schematic,the 12V supply will be available at the MCU pin. will it make the pin faulty?
do we need to put some extra component to avoid the same?
regards
ml
hi all
there's a system which is working on battery.where the output device is consuming most of the current in the entire system.but it operates quite less time.so what i prefer is to shut down the entire output section when it is not used and put the controller in to sleep mode to save...
camera send gsm mms projects
dear friend
i found the camera here which can be directly connected to the television
and in a purticular channel you can see the motion pictures.ther are cameras with rs 232 out put also. there are two serial ports in sim 300.so i think i can connect one camera to...
gsm camera project
hai all
the real problem here is the cost and the application
i want to get the photo/video of a place where i am fixing the system
and a camera phone with mms support will cost you more
and you will not get any type of project experiance
we here trying to something ourselves...
gprs camera
hai all
how can we interface camera to GPRS module and send pictures ?
i am planning to use SIM300
and 8051 microcontroller.
i would like to get more details
thanking you
sun
projet em4095
hai all
i found in almost test products,we are using coils as the antenna
is there any softare available for designing the antenna in the pcb itself?
for small range readers it will be much help ful
sun
Re: About Interrupts
hai
the controller does not know which part of the section is critical.
so if the interrupt generates at that time, the system will stop the present
process and will service the interrupt. the programmer should take care of this .one colution is that you can mask the...
Re: Can Interrupt be Serviced even when Micro controller han
hai
what do you mean by hanging?
if it means exicuting a task permanently,then it's not called hanging
this time it's performing a work
and this time it will ready to service all the interrupts
normally 'hanging' means the...
Re: bio metric scanner
hai all
it will be useful to get details about the bio metric scanners
let us use any microcontrollers,but doing such projects will help us a lot
because therel's a lot of developments are coming on this subject.
so people wh had experiance in finger print identity may...
rfid for attendence registor project
hai all
i am also looking for such application
i think it's difficult to design the system with a read range of more than 1 meter
the antenna itself will cost very high compare to the reader
if there any one who had experiance in designing such systems
i...
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