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Hi Dora i am sorry if i angered you but i am really new to coding. Btw the bulk of the code was written by my lecturer and i was suppose to implement the peak detection algorithm and calculate the heartbeat rate from there.And btw i was the one who wrote the logic. i have a few questions. first...
Hi Dora my full code is here.
I am using an optical sensor to detect BVP
I have implemented hardware filters to cancel out noise but interference in this case is false peak caused by a unstable amplitude of the signal which means most probably the person moved.
As for better header i mean that...
Hi Dora!
the purpose for(p<h+5) is basically because i do not want the sampling to jump to else and break out of the for loop when there is no signal therefore the +5 or -1. As for the Value why it is +5 or -1 is because i found it to be most effective to removing any other interference during...
Hi doraemon! Thank you so very much for replying to my post!!
I have written comments for my code shown below so that people can understand it now!!
As for the question on why (p>h-1), i did it so that there is a threshold to be reached before the calculations begin as opposed to putting (p>h)...
P= Old ADC0 value.
n= First peak time taken
a=Second peak time taken
v= Difference in time between the two peaks
b=Difference in time converted to seconds
f=Calculation for beats per minute
s=Counter for every 10ms overflow from timer0.
{
h= (ADC0>>4);
for(l=0; l<127; l++)
{...
i dont really understand the mechanics of how to use union guys and milan the title is correct what i am trying to achieve here is to get the number of overflows at different intervals from my timer interrupt.
void timer0_interrupt_init()
{
TMOD = 0x01;
// TR0 = 0;
//TL0 = 0xEF...
I need help on methods in which i can store 2 different values from my timer0 interrupt(number of overflows assigned to a single variable).
i have tried alot of different ways and i still cannot get it to work...
Please help me... Using Silicon Laboratory IDE interface.
Dear BigDog this code is intended to basically display the signal on a 128x64 LCD screen with a BPM indicator. I have so far got timer0 to run optimally but i still cant seem to get it to start and stop when i hit 2 peaks of the signal. What i want timer0 to do is just to calculate the time...
i have done most of the coding but the problem i am experiencing now is that after the first round of signal sensing, it does not refresh and restart the process. The problem could be from the for(;;) loop because i tried leaving it out and it worked. but i need the for loop for my calculation...
Hi sorry to bump this thread after so long but i need help with a final year project. So basically i am using C8051340F micro controller and i use silicon Laboratories ide to do a little programming. Was wondering how to calculate the Freq/Bpm and display it on 128x64 pixels lcd.. Thanks for...
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