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Well I am feeling hopeless right now. For the past 3-4 hours I am trying to understand unscented kalman filter and its giving me a headache. On a scale of 0-10, my statistic knowledge is close to 1. I read a lot of literature on the UKF but have NO IDEA how to implement it.
I am building a colpitts oscillator which seems to work just fine. The problem is its "vout" ( shown in the image) is a 100 mV sine wave with a frequency of about 60Khz. I need to square up this sine wave and using another transistor to do so.
At the moment , the second transistor is...
I want to drop a 12 V square wave to 5 V square wave. This 5 V square wave will be fed to PIC18F4620.
I know of clipper circuit , but I need something very simple as I have very limited electronic/electrical resource with me ( only few resistor ) :???:
Is the link below going to work...
Well I have a radar sensor that counts number of vehicles in each lane. The installation guide asked me to perform a boresight check before installing the sensor. What is a boresight check and how do I perform it?
I need some guidance over reading data from one of my COMPORT. I have a sensor which is connected to my laptop via serial-USB convertor. I am receiving data at comport every 1 minute (this can alter). I want to continually read this data and save in a text file or most preferably...
I have been playing around with a sensor for the past 1 week and realised it has an additional feature. The sensor captures an additional physical quantity but it does not transmit this quantity on to its control software running on the computer. So, I contacted the...
I have a very simple question that I "kind of" know the answer to. But I would like to see what you guys think.
I have a series of digital data for example 001110001100000111100. I want to count how many 0 to 1 transitions are present in the data. For the data set in the example, I...
I always wondered how does google maps estimate travel time from A to B on urban roads? Does it take into account the delays at traffic light intersections, roundabouts , left and right turn or delay caused by congestion?
Lets say if I want to go from A to B and there are 4 traffic...
Well I have a small question regarding some transport related issue and was wondering if we have any transport engineer on board.
I have been reading about SCATS (Sydney Coordinated Adaptive Traffic System) and its use across the world. SCATS is a traffic managment tool that works...
I have a WSDL file but not quite sure how to view data from it. I know WSDL isnt for human use, as its developed for an application.
I am using SoapUI 4.5.1 to access this : https://infoconnect1.highwayinfo.govt.nz/ic/jbi/TREIS/SOAP/FeedService/main.wsdl but unable to do so.
Every time I...
Good Evening Everyone :-D
Someone sent me a setup file of a program on my email. When I downloaded it I realised its got a file type "11B".
Firstly, I dont know what type of file extension is 11b and secondly Im unsure how to open it. Its a set up file though. Ideally it would have a .exe...
Hi all you brainy people :-D
Well I wasnt sure where to post this topic, then realised I would need a micro to compute gradient and ending up posting it here.
Ok so, I need some ideas on how to compute gradient of a 'parabola looking thing' (Image). So basically I need to compute gradient...
I am looking to extract the gradient of my sensor data I capture (real time). Im not sure how to do that.
Lets say the sensor plots a "V" shaped graph in response of an external stimulus ( Please see the image). All I need to do is capture X1, Y1 and X2 and Y2 (please see the image) ...
I would like to change some details of the replies I have posted in some of my posts. I cannot find "edit" option anymore.
Is it possible to go back and change some details of previous posts?
---------- Post added at 09:58 ---------- Previous post was at 09:57 ----------
In the image attached , I have a resistor ( 1Kohm) and a zener diode ( 4.7V) connected in series. I have 9 V across it.
Now, I am reading my vout ( in red) across the diode. Since its 4.7V diode, it should have a voltage drop of 4.7V across it. But in reality its only 3.5 V and my Vout...
Strange problem - Timer 1
Im using PIC18f4620 on a picdem2 plus board. Initially timer1 was working fine and I could write it to TMR1H and TMR1L ( data reg of timer 1). Then I changer Timer 1 to 8-bit .
After a while I changed Timer 1 back to 16 bit mode and since then I cannot write to...
Well I am using PIC 18F4620 and coding in MC18. I want to do something and I have a clear idea about it but unsure how to code that in C. Could you guys please have a look at what I want to do and convert that to C code please.
So, I am using interrupts. I have a test condition in the...
Ive been trying very hard to figure out why my CCPR1 register increment with Timer 1. Im using PIC18F4620 on a PIC DEM2 Plus board.
Ideally, the CCP module should CAPTURE the content of Timer1 when an interrupt occurs. But in my case, CCP data registers (CCPR1) increments with Timer1...