MicroPython Forum (Archive)

Manitou, didn't see your plot before today, it illustrates it very well. Probably a good idea to store data in a buffer first. I want to find the different options for sampling and storing data at a few kilosamples for some minutes, so data will have to be written while still measuring. Also looking...

Hello, I've also got one of the Bluetooth modules now and since I want to use a higher transfer rate than 9600 BPS, I have tested the AT mode. Tried to do everything from the MicroPython board since I may use the module with different boards and want them to do any required modifications on their ow...

Also tried using timer callback to read the ADC today with better results. Inspired by one of Dave Hylands' examples, I made a class for timer 4. I was able to achieve a sample rate slightly above 10 kHz, higher freq-settings for the timer gave just below 100 us between samples. As can be seen below...

Thank you for your replies. As can be seen, there are two types of discontinuities. The short ones of ~1 ms are at ~8 ms intervals, and long ones of 10 - 12 ms with "random" intervals (sometimes several in a short time). I think the worst with these is that the timestamp counter for pyb.micros seems...

Hello, I'm trying to store data read from the ADC to a file on the SD-card. X1 is connected to an external function generator configured to a 10 Hz triangular wave. As this plot shows there are some discontinuities in the data: adc.png I also tried storing the variable of the for-loop to check if th...