Search found 82 matches

by Derrihj
Sat Jan 25, 2020 10:52 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

I forgot to mention that this project was a success too i will post the pictures and video for it as soon as am done with its packaging infact i believe it will be used in our hospitals here,But first i need to order its plastic case from china ,the Ear sensor and Finger tip sensor together with an ...
by Derrihj
Sat Jan 25, 2020 10:22 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

There is something i want to add in this project and that is a GSM modem,when you look at my project there are 4 pins next to the LCD connector two are for 5v out and the other two are TX and RX pins but at the moment are grounded thru two pull down resistors.When the GSM is connected i would like i...
by Derrihj
Sat Jan 25, 2020 8:33 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

Its a 8MHz crystal, i got these from china but i even dont know its tolorence coz ive learned this tolorence thing about crystal oscillators from you so when i was buying them i had no idea about tolorence but when i measured it with a frequency meter it was showing 7.997MHz
by Derrihj
Sat Jan 25, 2020 8:10 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

One more
by Derrihj
Sat Jan 25, 2020 8:03 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

Many thanks goes out to medelec35, i always say its Educative to have you around and Yes it is also thanks to Benj,my project was a success.After i remade the PCB this time with an external oscillator it turned out perfect, you can hardly see a difference if compared with a real physical clock in-fa...
by Derrihj
Mon Jan 20, 2020 12:16 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

Thanks Benj will have to build a hardware with LCD, test and see how the seconds accurately move in line with a physical normal clock seconds.The baud rate for DS3231 here should be set to what 100KHz,400KHz or 1MHz for the Ds3231 to work perfectly?
by Derrihj
Mon Jan 20, 2020 9:57 am
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

Can i use the RTC component (DS3231 ic) to extract out only the seconds and use them in my project for accuracy only seconds from DS3231 ic then i use them to give me minutes and hours then i use the hours to control a relay? Check out the flowchat below and guide me on this.
by Derrihj
Sun Jan 19, 2020 8:42 am
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

I see some circuits with an external crystal oscillator with its body grounded whats the point in that does it do any good in stability? Whats so important in doing that?
by Derrihj
Sat Jan 18, 2020 10:27 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

Thanks medelec35 yes i had copied that into interrupt when i was trying out any way of making my counting work better and yes it improved somehow as seconds were easily added up within the int not to be interrupted by the next beat of int count while in the loop outside INT.Dont know if ive sad it r...
by Derrihj
Sat Jan 18, 2020 3:43 pm
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Re: Real time Hourly Device Control

Thanks allot medelec35 its educative to always have you around and that is why its always good to ask the professionals before u act now i have to remake the PCB with an external oscillator this one with internal oscillator was one second behind when i was testing it this went on increasing to 2 sec...
by Derrihj
Sat Jan 18, 2020 1:54 am
Forum: Flowcode V8
Topic: Real time Hourly Device Control
Replies: 17
Views: 290

Real time Hourly Device Control

Hi every one,is it advisable to use internal oscillator while designing a real time clock? my issue is,i wanted to control some device and turn it off when set hours have reached so what i did i got my PIC16f886, set the internal frequency to 8MHZ, enabled Timer2 int with Prescaler Rate= 1:16, Posts...
by Derrihj
Tue Dec 24, 2019 2:03 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

Is there a way of disabling and enabling Timer2 of PIC16F628A in a Whle1 Loop sothat it starts its timing at any point i desire and stoped at any point in code that i desire? If yes please help show me how.I really need this stoping and enabling sothat i dont miss out some seconds when the start but...
by Derrihj
Sat Dec 21, 2019 7:29 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

Wawoo!!! thanks medelec35 i really like people who teach the simple way for everyone to understand and thanks for not getting tired of many questions asked.You know when you look at the Arduino many sketches are written out there and people can just download and edit as they require with flowcode we...
by Derrihj
Sat Dec 21, 2019 3:44 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

Thank you very much medelec35 for the help but i would like to learn why do you use Rollover Value as 250 and not 255.
by Derrihj
Sat Dec 21, 2019 11:33 am
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

medelec35 please help look at my FC Prog and see how you can modify it to work better.Here am timing for 15 seconds and then multiply Count by 4 to give me Heart bpm.
by Derrihj
Sat Dec 21, 2019 1:22 am
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

Am going to use a pullup resistor 10k on INT pin my question is how do i pulldown INT pin inorder to cause the External interrupt,in response to the digital siginal,can i use the digital output siginal to drive an npn transistor which in turn pullsdown the INT pin in order to cause the interrupt and...
by Derrihj
Fri Dec 20, 2019 10:57 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

Thanks medelec35 ,i think your idear will work.Can i use a transistor to pull down INT pin once a digtal siginal is detected?
by Derrihj
Fri Dec 20, 2019 7:05 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

250mS x 4 wont that be beats per second instead of beats per minute?
by Derrihj
Fri Dec 20, 2019 1:59 pm
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

No i donot have it because i want to first get the FC program written then i make the PCB and try it out but i want to use exactly the same easy pulse v1.1 board together with a PIC but first before i make the PCB i need to be sure i have the Flowcode prog written.
by Derrihj
Fri Dec 20, 2019 11:22 am
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Re: Heart beat Pulse measurement.

Thanks stefan.erni sincerely speakng i have NO FC program written yet coz i don't know how to do it that is why am looking for a helper to write the FC program and we go thru it as that is the best way to learn for newbies like me.Thanks again.
by Derrihj
Fri Dec 20, 2019 8:47 am
Forum: Flowcode V8
Topic: Heart beat Pulse measurement.
Replies: 18
Views: 728

Heart beat Pulse measurement.

Hi every one,i came across this chinese Heart beat pulse sensor known as EASY PULSE V 1.1 does any one know how we can interface it with a pic in flowcode to show the Heart bpm On a 16x2 LCD.Here is the website you can find good information about it. http://embedded-lab.com/blog/easy-pulse-version-1...
by Derrihj
Thu Dec 05, 2019 2:44 am
Forum: Flowcode V5
Topic: SCROLLING TEXT MANY TIMES ON LCD
Replies: 4
Views: 486

Re: SCROLLING TEXT MANY TIMES ON LCD

Thank you very much chipfryer27 for showing me this trick, i didn't think about this trick and went on repeating the same code taking up allot of my MCU space, but with your trick i can now build on it to come up with different Text scrolling as i desire. This is exactly what i was looking for thank...
by Derrihj
Sun Nov 24, 2019 12:32 am
Forum: Flowcode V8
Topic: Increase/Decrease a variable Value on a press of a button
Replies: 8
Views: 388

Re: Increase/Decrease a variable Value on a press of a button

Yes Medelec35 thanks for your work it has been so helpfull, ive seen yours and it works just the same as mine but correct me if am wrong coz one time i used the print Number comand and it had trouble printing Floating point numbers thats why i decided to use strings through out.
by Derrihj
Sun Nov 24, 2019 12:10 am
Forum: Flowcode V8
Topic: Increase/Decrease a variable Value on a press of a button
Replies: 8
Views: 388

Re: Increase/Decrease a variable Value on a press of a button

Ok thanks Martin for that correction I edited it and i think now its working
by Derrihj
Sat Nov 23, 2019 11:03 pm
Forum: Flowcode V8
Topic: Increase/Decrease a variable Value on a press of a button
Replies: 8
Views: 388

Re: Increase/Decrease a variable Value on a press of a button

Hi Medelec35 and thanks for your quick response,ive added an LCD in your flow-chat so that i could see what is going on but the result i got is not exactly what am looking for yours goes from 30 t0 10 the goes to something like 70. But what i want is for temp ref to be adjustable from 0 to 30 and ba...