![]() This tutorial was created to demonstrate that the Arduino is capable of acting as an independent data logger, separate from wireless methods and SD cards. The slow loop is a result of the plotting, so once you comment out all of the plot code, you will get a much higher data rate and. I actually used 0.8 seconds as the time between data records and it appeared to catch all data points. I found that my loop took roughly half a second to complete, which means that my serial port should not be outputting more than 2 points per second. This will prevent lost bytes and dropouts of data. Do some tests to verify the speed of your loop. I found that I was missing bytes or they were getting backed up in the queue in the buffer. Therefore, I advise anyone who is using the method below to assess whether you are reading all the bytes that are being outputted by the Arduino. I found that updating the plot occupied a lot of processing time, which resulted in slower reading of the serial port. NOTES: while I was using Raspberry Pi, I came across an issue between reading the serial port, saving to. ![]()
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