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Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Fri Jan 24, 2025 1:55 pm
by mnfisher
Display is just the macro that puts the data to the UART - you'd mentioned that you were doing this (or sending to SD?)
This would need changing to send the data in the format you need - but here it reads a string from the queue and displays (sends to Uart) it and the number of items left in the queue. It's running as a separate task.
I don't think so, but names might have been changed to protect the innocent.... Sometimes my memory plays tricks,
Martin
Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Fri Jan 24, 2025 5:15 pm
by stefan.erni
Hi Martin
Ok, I now understand what that means. I can display the data on the terminal programme. This also works and I have changed the wait-times.
It works very quickly.
I will have a closer look at it, how I use this with the sensors.
I have managed to write a wave file and Audacity also opens it. You can see a movement very well with 480Hz sampling two IMU (12 axes)
Save data to the sd-card should be faster now.
Audacity:

- 2025-01-24_17-52-49.PNG (198.09 KiB) Viewed 1602 times
Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Fri Jan 24, 2025 8:32 pm
by mnfisher
That looks pretty good... I like the idea of using Audacity to view the data...
Audacious one might say?
Martin
Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Fri Jan 24, 2025 8:36 pm
by chipfryer27
Audacious one might say?
Sounds like we are scraping the barrel....
Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Fri Jan 24, 2025 8:51 pm
by mnfisher
No, dude...
Totally bodacious..
Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Fri Jan 24, 2025 8:53 pm
by chipfryer27
Ha ha
Shouldn't that be posted in MJU20's totally hot Time Machine project?
Re: Sampling 2pcs IMU 6axis @ 200Hz with PIC32,STM32,or ESP32?
Posted: Mon Jan 27, 2025 7:22 am
by stefan.erni
Hello Martin and Lain
Even if the name is a little funny, it is a great program.
For 16bit, 24bit, 32bit data viewing and filtering simply great.
Audacity
Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, macOS, GNU/Linux and other operating systems.
Audacity is free, open source software.
https://www.audacityteam.org/download/windows/