Student teams from over 100 universities compete in multiple dynamic events, such as an endurance race, maneuverability course, sled pull, hill climb, and acceleration event. The team is a Mechanical Engineering Senior Design Project, counting as credit for the Senior Capstone Design. We’ve even gone the extra mile and have put the LED lights through test after test, and each time they came through with flying colors. I would consider $1000 for a simple-ish project like this (parts and labor) a reasonable fee.” Many of the things that are judged upon at Baja SAE consists of competitions that simulate real-world engineering design projects and their related challenges. When I was in grad school we hired ee students to build stuff like this from time to time. (Obviously there is more to it, but that is the gist)
#Daq matlab 2009 how to
Then you just need someone who knows how to design, build and program it. Throw in the passives and some input filtering/buffering and you are looking at maybe $30 - $40 in components for a single board, and in the $20 - $30 range for printing 3 pcb's (maybe $100 if you wind up needing something fancy). All of the logic behind controlling the ADC's and buffering the data for retrieval can be handled by the MCU, so interfacing with it from MATLAB can be made very simple (and formatted exactly how you want) Add four more adc's (2 per bus) and you have 128 channels at nearly parallel speeds. That combo would give you 64 channels (one 16 channel ADC per) i2c bus, which would give you essentially pure parallel reading (kilo to mega sample /s range). You can also get arm microcontrollers (look at ti's tiva series) with 4+ i2c buses as well as USB for pretty cheap (~$10). The exact one will depend greatly on your requirements. How experienced are you with hardware design and embedded C? Can you find someone who will work for cheap (maybe an EE student)?Ī 12 bit 16 channel i2c ADC is a pretty common item and you can find them for a few dollars. You can probably fake it with the ni-daq, but I think you are in a place where it makes sense to spend some effort and design something that fits your exact needs from scratch. Thats pretty much it on the arduino side.
#Daq matlab 2009 serial
Now we will send it to matlab via serial COM. So each analog channel is denoted as An, where A stands for Analog, and n is the channel. usually its 9600, but could go to 10 6.ĭepending on data type and size change int and 500.
This is your baudrate or how many bits you want to send over the serial interface per second. So an ideal situation would be something like this: You could program the arduino to wait 50ms before reading the next channel simply by coding "delay(50)". The arduino itself would multiplex between each channel. With the arduino you could read 6 analog signals. I've looked some into background data acquisition using a 'listener', but I'm not very familiar with these tools. S.addAnalogInputChannel('Dev2', 0, 'Voltage') Much slower than acquiring a single scan: I can scan for 50ms at 2000HZ but it takes way too long for data to return from each scan. Is this what you are suggesting or did you mean something else?Īs far as I can understand things, the ideal scenario would be to quickly acquire continuous scans-50ms scans at 2000HZ, for example-while the Arduino automatically switches multiplexer channels. Just inputting single scans (while the Arduino switches channels) should speed things up, but probably not by enough. I actually just got the Arduino in the mail so I'm going to try this sort of thing soon.
I just need it faster ideally at least 5x faster.ĭoes anyone have any ideas for how I might do this? I've been struggling with this one for a long time (I'm even offering 0.25 bitcoin for a solution!) It works by outputting a single scan on digital output channels to change the multiplexer channel, and then inputting a single scan on the analog input channel to read: I currently have a working script written entirely in Matlab but it's too slow (~0.23s to cycle through and read all 16 channels). I'm working with Matlab and a National Instruments box. I am trying to control a 16 channel Texas Instruments multiplexer ( ) to read voltages through a single analog input as fast as possible.
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