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Hi all,
I want to design video surveillance system with around 20 nos of CCTV cameras and want a video backup of about 2 days.can anyone help me out with the kind of hardware that i would require(i.e. storage space,type of CCTV,user interface etc.)
Any kind of suggestion is welcomed
measure pulse width atmega
i have written my program in codevision, and with this i am getting width=132 on lcd,when my input to the INT0 pin is pilses with 1s time period.so ,for T1 clock source of 7.813khz, which is incorrect.
please point out the mistakes or additions in the program...
timer atmega 16
Hi all,
actually I want to measure the time between two successive pulse.
and signal is supposed to be between 0.4-2 seconds.
I am using ATMEGA16,and codevision compiler for programming.
I tried to write the code using timer1,but somehow i didnt got the output as desired.
so,if...
Re: Pulse Oximeter
yes, I havn't shown the red & ir detector circuit.
I am using one detector with detecting range of 550nm-850nm.
I have connected my detector output to the input of instrumentation amplifier.
Re: Pulse Oximeter
yes,actually i have taken this circuit from datasheet only,and as i need two differnt filter so as i can get two outputs,one bieng red detector and one being ir detector.
actually problem with the circuit is that it is not filtering out my desired signal which is around .6hz...
Re: Pulse Oximeter
how can you say that its ECG circuit?. i think one can not say anything about circuit's application by just watching schematic.
and about analog multiplexer, its used to differentiate red & ir detector output,which is coming from one light detector only.
shematic cd4053
but my sensor is finger sensor,and it has nothing to do with direct body contacts.
it just transmits the red & ir light which passes through finger and then received by detector.
Hi all,
Actually i am making pulse oximeter as my project.
I am using OPT101 as RED & IR detector, and output of the detector is connected to instrumentation amplifier AD630 as shown in schematic and rest of circuit is connected as shown in schematic.CD 4053 is analog multiplexer which is...
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