TD-CMP module specs

[techdesi]

http://www.techdesign.be/projects/023/023.htm

* Compass: Resolution: 1° - Accuracy: 3°
* Tilt/Roll:(TD-CMP02 and TD-CMP03 only) Resolution: 2° - Accuracy: 5°
* Temperature:(TD-CMP03 only) Resolution= 1°C/F - Accuracy =1°
* Sampling rate: once a second.
* Easy Tilt/Roll calibration.(TD-CMP02 and TD-CMP03 only)
* Interfaces: I²C, RS232 and mini-USB (as a HID device: PID=0461, VID= 1023)
* Powered by USB bus or an external 5V.
* Direct LCD readout possible. LCD contrast by user.
* Low power LED blinks when facing North/East/South/West.
* USB Windows application (written in C#) available for free download.)
* Source code (CCS C and C# .NET) and schematics (Eagle) can be purchased separately.
* Module software is 100% upgradable with a simple bootloader.
* PCB Dimensions: 40 x 41 mm or 1"57 x 1"61, weight: 10 grams.

[speedballer]

i am concerned that the sampling rate is only once per second, this doesnt seem very often if this will be used to navigate something. is there anyway in make it faster?

[techdesi]

It should be possible to increase this sampling rate to 2 or 4 times a second. Doing so will require some serious reprogramming and testing though...
We can certainly do this if more people request this feature.

[speedballer]

It should be possible to increase this sampling rate to 2 or 4 times a second. Doing so will require some serious reprogramming and testing though...
We can certainly do this if more people request this feature.

is this just a software issue? i dont see how at 1 time per second it can be useful to someone for navigation. is this something i can modify within the source code? do you have VB6 code available for this? how much is the compass affected by being tilted or does it have to be flat to be accurate? does the tilt sensor compensate for this?

[techdesi]

Yes, it's just a matter of software mainly.

Of course you could try to do this by yourself. The software for the module's PIC was written with the CCS C compiler.

You can buy a TD-CMP source code license here: http://www.techdesign.be/shop/index.php?cPath=35_49


Cheers,

Michel, TechDesign