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is there any difference in term of programming for PIC16F84 and PIC16F84A ? or both are compatible with each other using same programming source?
yes, i know its old and obsolete. =_="
Thanks , nice explanation.
hurmm... but how about the C7, R2 , R10. what is the function of it? also for C5. if i would like to test the circuit by applying a generator which point should i put it to ? at the ORP12 or at R8 ?
oh and maybe the explanation for the digital part would be nice...
details in working of photodiode
can u explain the circuit for the HEMON. how does it amplify and filter the circuit ? the hand analysis calculation for the circuit, the gain and such? and at the pulse waveform at pin 7 i still get a digital signal only not the analog signal, why is that?. and...
explanation of amplifier
hi , can anyone explain this circuit to me ? what type of amplifier it use ? and the filter and such. how to do a hand analysis of the circuit.
**broken link removed**
thanks.
help needed , i'm a beginner in designing the schematics. can someone look at the circuit , and help me.
this is the design.
this is the schematic i made T_T
is my design correct? when i stimulate , it says something about Pin VEE not modelled for U2. what does it means ? help anybody...
hi , i need to build an ECG using 2 metal electrode to detect heart rate by placing thumbs and index finger on the metal electrodes. any help and schematics ? thanks.
oh and yeah , i also wan to moniter heart rate also using PPG from index fingers. thanks again
Added after 4 hours 23 minutes...
photoplethysmogram circuit
does an ECG can detect heart rate using finger? im abit confuse there, because from what i see , the ecg using electrodes that connected to a certain point on the body something like Lead I , Lead II etc. , is it possible to get from the finger ? is there any...
design photoplethysmogram
hi i'm new here i dunno how to start , but i'm a student in the middle one doing a project to design an ECG and PPG circuit to monitor heart rate from finger, is there any suggestion/opinion/advise or design for this project for me? thanks.
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