Recent Posts

General Discussion / Re: "Best" way to send sensor data via BLE?
« Last post by lennevia on June 04, 2020, 01:17:55 PM »
Hello Tacca,

Can you include the code you currently have? I can try optimizing it to see if it can be made more efficient.

Do you need the accuracy you have mentioned? What data is most important to you, or do you need all of it?

Let me know!


General Discussion / Re: Beginner questions
« Last post by lennevia on June 01, 2020, 05:42:45 PM »
Yes, it is possible
Tiny Arcade / Mutant Road
« Last post by dulsi on May 31, 2020, 03:22:09 PM »
I was going to fix up Color Monsters for the Mayker Madness contest but didn't get to it and decided I didn't have the time. Instead I decided to try my hand at a beat-em up. It is still early in development. I have posted it for the contest.

Once I make the level more complete I'll post a bin.
General Discussion / "Best" way to send sensor data via BLE?
« Last post by Tacca on May 28, 2020, 05:38:47 PM »

I am facing a problem with my project.
I am trying to send 9axis sensor data via BLE, I managed to do that via UART example by truncating a concatenated message of the data, into chunks of 20 bytes each.
The problem is, the 9 axis data plus fusion becomes 3~4 messages (60 to 80 bytes), and I plan to use 2 9axis sensors (wirelings), which would double the length of the message I need to send. This decresce my throughput by a lot.
Right now, using only one sensor, I can't go below 120ms or I start loosing some of the data.

Is there a best way? Any thoughts are appreciated.
TinyDuino / Re: Calibrating ASD2612 9 Axis IMU
« Last post by lennevia on May 26, 2020, 12:23:35 PM »
Hello Andy,

Thanks for sharing your findings!

Hope it helps others.

Thank you!

TinyDuino / Re: Calibrating ASD2612 9 Axis IMU
« Last post by andy1989 on May 25, 2020, 02:57:46 PM »
Hello Réna,

I think I have solved the problem.  I found this link - which explains that a sketch called RTArduLinkIMU needs to be installed on the Arduino/TinyDuino.  The program that then needs to be built/run is not in the Linux folder but in the RTHost folder  and can be either RTHostIMU or RTHostIMUGL.  These programs ask for a COM port to be selected which, as soon as I selected the correct one, started reading and displaying data from the IMU ;D.  It is also worth noting that the aforementioned sketch should NOT be running in the Arduino Serial monitor at the same time.  It is also worth noting that there is another calibration program called ArduinoMagCal which, rather than storing the calibration data in a .ini file, actually stores it  within EEPROM on the device itself  which may prove to be more useful. 

Hope this info may help others.


TinyDuino / Re: Calibrating ASD2612 9 Axis IMU
« Last post by andy1989 on May 23, 2020, 08:30:06 PM »
Hello Réna

Many Thanks for your reply.  I downloaded the library in your link and followed the instructions in this link:  to compile the code.  I found I had to also do this :

sudo apt-get --reinstall install libqt4-opengl-dev 

to get a clean build.   The examples given (RTIMULibDemo & RTIMULibDemoGL) are GUI versions of  RTIMULibCal which I was running before and are an easier way of changing the options.  However, I am still getting the same messages with regard detecting the IMU.   It says it should support the MPU9150 (which I believe the ASD2612 contains) but just does not want to seem to recognise it.    It would appear that the problem is  related to the I2C but do not know enough about this to be sure.  Any help you could provide would be most appreciated.   Please let me know if you need any further info.

Many Thanks,

TinyDuino / Re: Need help identifying this tinyduino component/module
« Last post by lennevia on May 21, 2020, 06:02:13 PM »

The TinyShield in question is a semi-custom board that is meant for use with an AVR programmer.

For this reason, there is no documentation or example code on our website. You can look at this website for some general information:


TinyDuino / Re: Calibrating ASD2612 9 Axis IMU
« Last post by lennevia on May 21, 2020, 05:54:49 PM »
Hey there Andy,

I am not sure what setup you have for using the 9-Axis with Linux, but you may want to check the library on GitHub to see if it is supported:

If there's any more information you have, I can try my best to help!


New Product Ideas / Possible to send midi out thru usb in tinysaber?
« Last post by tefriot3d on May 21, 2020, 02:10:40 PM »
Think your cool toy would make a great midi controller.. found a USB midi library for the 841 here:

what do you think? possible? could it be made wireless by attaching your bluetooth board with a bit of hacking?

seems like all the pins are used in the schematic, not sure tho.

Thanks, Tefriot
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