I will try to change that as well before i go for the RC5.
The following 15 days i will be in a business trip in Abu Dhabi so i will get back as soon as i have time to check this out.
Many...
Type: Posts; User: astanapane; Keyword(s):
I will try to change that as well before i go for the RC5.
The following 15 days i will be in a business trip in Abu Dhabi so i will get back as soon as i have time to check this out.
Many...
Hi Richard,
you are right, i have decreased the speed and manage to play a lit bit with the delay in useconds.
I worked somehow but not always reliable.
I think i will try the RC5 method.
Please find the schematic as follows.
I hope i didnt forget anything. In any case is very simple.
9445
I will make the schematic on paper later today and will upload it here.
thanks :)
I will do that thanks a lot.
Yesterday i tried till late at night to set a code for the TX and RX, a very simple one but didnt work.
tx:
...
with the following configuration i got this on the scope. So i guess we are in a good path.
To mention that the main OSC is at 64Mhz using HPWM on the PIC18f26K22 on portc.2
TRISC.2 = 0 ...
thanks Richard. now is clear.
i will get back once i have a working code and establish an IR communication.
i've also noticed you've shifted 2 bits on the right the CCPR1L
CCPR1L = 210>>2 ' Set PWM Duty-Cycle to 50%
So the CCPR1L value will be 52.
(11010010) 210>>2 = 00110100 = 52
why have we...
Hi Richard,
thanks for the clarification and answer.
I found in the manual what you said regarding the Resolution bits.
9440
Dear all,
just a quick question. I didnt want to open a new thread but most of the Infrared threads are closed.
I would like to set up the PIC18F26k22 in order to use HPWM for the 38khz IR.
...
sorry for my late response. I was really busy these days.
thanks for the info. I will do some changes and tests. :)
I did an other test on a different person. Those info are from a woman.
Richard have done a very good job up to now. I think the LPF should not be so aggressive.
9176
LPF RED IR...
Richard this is already lots of work, and i dont know how to thank you for all this.
I believe that this will be useful for many people in the forum in the end. (even if noone else is involved).
hehehehe, sure i will do that. Just to check what will be the values on a different person, as i know my average Heart pulses are always around 82-90 Bpm.
I will find someone with much lower and...
Richard,
i think i post #41 and #44, the graph was a bit better in terms of highs and lows. Dont know if the last configuration and modification in LPF made it easier to identify those highs and...
Richard thanks for your effort.
These are the new results base on the last change on IR values.
8744 8760 9019
8745 8759 8995
8743 8740 9001
8744 8754 9012
Just transfered those values from the PICKIT serial terminal to excel. No conversion.
9160
just tried. Let me see the values on the excel. :)
0 8028 1F5C
8053 8551 8259
8076 8533 8249
8100 8563 8254
8120 8541 8251
8140 8553 8244
wrong info above, as i captured ascii and not hex values.
I'll try to fix that on the following message.
For everyone info,
found this interesting article.
https://morf.lv/implementing-pulse-oximeter-using-max30100
results from PICKIT UART TOOL at 9600.
RED IR
8875 9120
8859 9127
8867 9128
8868 9127
8871 9116
I guess you have this one
9153
https://www.teachmemicro.com/max30102-an-improved-heart-rate-sensor-for-arduino/
I also have 2 of those, but in the schematic the input voltage is 3.3V to 5V. ...
Richard which sensor did you have? Could you please let us know? for avoiding it in the future.
Based on cardiovascular medical graph, the post #44 and post #49 looks fine.
I think #49 it is a...
That's really impressed Richard.
Im still working step by step on the code, im still at an early stage.
Just need to understand the methodology.
Thanks Richard,
just wanted to understand it. Now it is clear.