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Hi Brian,
Thank you very much for your reply, greatly appreciated. The country does not use daylight saving time our time stays the same. I am based in Nigeria. The timer will have to be abit accurate because initially i wanted to used an LDR which will put the lights on automatically when it is...
Hi,
Thank you very much for your story, very interesting. This set up is for an advertising sign and it is going to be implemented in a country that does not have winter, Its a tropical country. Hope you can help contribute to the project.
Best Regards,
Hi,
Thank you for your reply. We have a total power consumption of 50W. We will need the lights to be on for 12 hours in a day. I am thinking of using a 100W or 200W solar panel but we are restricted to a surface space of 1.35M by 0.665M . I want the light to come on at 6pm and off at 6am, the...
Hi,
I am trying to build an outdoor display which will light up at night using LED lights which will be powered by a solar battery. I need some help on how to set it up and what will be needed.
The display will have a solar panel on the top of the display and also have a battery as well...
Melcespt Help!!! Matlab Help
Hi, Please i need help with this Matlab code.
i am using this melcept function for different samples of me saying the word "one"
here is my code
[aaaaa1,fs]=wavread('one.wav'); %Read In Sample
a=0.95;
aaaa1=filter([1,-a],1,aaaaa1);
aaa1= melcepst(aaaa1,fs);
i...
Hi, i am currently doing a project on speech recognition using a neural network. i have recorded all my sound sample and extracted it as a wav file. i have been able to read the wav file and display it on a time-domain graph and also a spectrogram.
i need to know convert the speech signal into...
Hi, I am using a PIC16f877a microcontroller and using MPLAB ICD3 on hi-tech complier. the aim of my project is to find the heart rate and body temperature. the program displays the heart rate and the body temperature. my main issue is that the start button is not working, basically when i run...
here is my updated code. this one counts the heart rate and displays it. my main issue is that the start button is not working, basically when i run the program it just goes straight to displaying processing and then shows the heart rate and body temperature. what i want is that when the...
Hi, I am using a PIC16f877a microcontroller and using MPLAB ICD3 on hi-tech complier. the aim of my project is to find the heart rate. i have done the software to count the number of pulses coming in. the main problem i have now is i want to count the number of pulse for 15 seconds and then...
hi,
i am using a pic16f877a on hi-tech using mp-lab. i basically have a circuit which finds out the pulse rate of a person. when a person heart beat the circuit output move from 0v to 3.7v. i need a software to count every time the output peaks at 3.7V over a set amount of time. so i can...
hi,
i am using a pic16f877a on hi-tech using mp-lab. i basically have a circuit which finds out the pulse rate of a person. when a person heart beat the circuit output move from 0v to 3.7v. i need a software to count every time the output peaks at 3.7V over a set amount of time. so i can...
Hi,
my project involves finding the heart rate of a patient, through using an infrared emitter and a photo diode to detect the change in infrared signals. basically the output of the photo diode is in milivolts and to be able to read the pulses(due to change in infrared signals) with the micro...
Hi,
my project involves finding the heart rate of a patient, through using an infrared emitter and a photo diode to detect the change in infrared signals. basically the output of the photo diode is in milivolts and to be able to read the pulses(due to change in infrared signals) with the micro...
Yes i am using a MCP1525 IC to generate a precise 2.5 V reference for A/D conversion. Thanks for the calculation i have noted that down. the issue now is to get the ADC_read value using HI-TECH code.
Thanks so much for this.The PIC16F877A datasheet says Vref should be equal to or higher than 2.2 V to ensure 1 LSB accuracy of A/D conversion. The output voltage from the sensor is converted to a 10-bit digital number using the internal ADC of the PIC16F877A. Since the voltage to be measured by...
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