CMPS03 Magnetic Compass. Voltage – 5v only required. Current – 20mA Typ. Resolution – Degree. Accuracy – degrees approx. after calibration. Output 1. Library; Reference. The CMPS03 is a digital compass with an I2C interface. Reference¶. CMPS03 Datasheet. CMPS03 Robot Compass Module This compass module has been specifically designed for use in robots as an aid to navigation. The aim was to produce a.

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It would be nice if someone made a hardware protocol analyzer for I2C in particular, but all serial protocols in general. Fri Sep 09, 1: Hey, thanks for checking that.

(PDF) CMPS03 Datasheet download

Previous topic Next dtaasheet. Users browsing this forum: I assume you are having problems with protocol that the sensors require. Page 1 of 1. This board has two outputs: Here’s my code sorry the lenght, it is mainly due to dataaheet leds Code: Hi Padu, i had some problems trying to use the standard I2C for my project, i dont have time right now but i’ll look into my and your program and hopefully find something usefull diogenes.

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You just need to make sure both devices can handle the baudrate, which is always set by the master. I thought it would take me one or two days to set up the compass, but it’s taking more than two weeks already Google [Bot] and 2 guests.

Follow the Assembler example here: Sun Jul 10, 1: The Beagle analzyer provides a high performance monitoring solution in a small, portable package. I was measuring the signal duration on the oscope and it was giving me a frequency of 50KHz You’ll be notified when we have some answers. I tried initializing only once and sampling many times, but that didn’t work.

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I didn’t have a 1. I’ve set the pullups with the suggested resistance values 1. I think it must be something very simple and I will feel very dumb when I find out, but I couldn’t figure out by myself.

I was hoping that somehow I was making something cm;s03 and you would tell me to change one line of code and voila I don’t know who is holding the clock line low, the master or the compass. Now this is what’s happening: I’d think that in this case, the clock line would oscilate at cmps003 different frequency, instead of not oscillating at all. Sun Sep 04, 4: Looking at the scl line with an oscope, there is no activity, it is always high a tad below 3V.

I checked the ASM your code produces and there in nothing wrong with it. Turns out that it is always the second setting the register or the third sending the read address.

MikroElektronika Forum • View topic – I2C, PIC18F and Devantech CMPS03

This would be a nontrivial task to create the product, but I’m convinved there’s a definate market, because this ends up being so time-consuming. Fri Sep 09, 5: Is that the normal thing to do? Datasheeg for engineers in the field and in the lab.

There is too much material to include it all here, but I can send it as email attachments. Clearly I’m loosing something here.

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As you can see, I’m pretty newbie on I2C The datasheet says that the lower 7 bits of SPADD shall be initialized with such a value that when counted every other clock pulse Q2 and Q4it should take exactly the 10uS.

Fri Sep 02, 7: Fri Sep 09, 8: Wed Apr 21, 6: Cmpe03 tried reading the compass using the PWM signal that it generates by using timers, but at 4MHz, I cannot get a timing precise enough.

Additionally, the values I read are noisy, meaning that from 10 values I read, 5 or 6 of them have nothing to do with the real compass orientation. We will have to check this. I2C can be very frustrating.

Seems like mE ddatasheet their hands full at the moment so don’t hold your breath. My guess is that datwsheet baud rate is mismatched. You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum. Let’s say the target frequency is kHz 10uS. Thanks for you help! I’ve used the example provided in the help and also searched a couple of topics here.

Then I looked at my code and it was really 50KHz from a datahseet I did the other day. Mon Sep 05, 3: Thu Sep 01, 5:

Last modified: December 27, 2019