Homebuilt ROVs Forum

Good find.... if you are into Python ;) Socket.io is a messagebus, between javascript programs. So the server part runs on the RPI and the client part, runs on the browser. Thats handy, if you dont want to push buttons or reload a page every time you want to update the data from the RPI. I don't thi...

That would depend on the design of the board, i think.

Sometimes they add multiple chips to an i2c board, normally every chip would still have its own i2c address. And sometimes you only access an ADC chip, which would get its data from other chips on the board.

perfo wrote:any clues how I can get the rest of the data from it ?

What i think the procedure would be, is this.

Write to a register.
Wait for a signal or timeout... Or keep reading until you dont get an error.
(This all depends on the board you have, ofcourse)
Then read the register, you need.

And repeat.

I have done something like that with a raspberry pi, i would say... You could also do it with an arduino.
Nobody is stopping you, so my guess... It isnt a bad idea, in general.

It will take time... And many new skills to master.
Learn, share and have fun building.

First you login onto the Pi using putty. There you type the command "nano filename" Select the text in your browser, type ctrl c Select the putty window again, either use ctrl v or right click on mouse Now type ctrl x, and Y for save Now you should have the text, in a file on the pi. And k...

What board did you buy? (didn't find any reference of a pressure sensor on the boards i found)

This guide should give you all the info on the ADXL345 chip, http://www.analog.com/static/imported-f ... DXL345.pdf
Mostly the REGISTER MAP will be most usefull. (Not for the faint of hearth)

Yer welcome... and remember... if it was easy... everyone would be doing it.

Am I right in thinking the RTIMU lib thing will auto detect my sensor board ? Yes, you are.... and No... i don't think the RTIMUlib will support the ADXL345. But good news for you, i found a sollution ;) Type the following command's at the prompt for your Raspberry PI sudo su - git clone https://gi...

Well ok seeing as you asked... I've connected my 9 axis gyro compass thingy to the I2C bus on the raspberry pi and I can do the sudo i2cdetect -y 1 and get the map showing its detected it on 40 and or 70. Could you explain the steps of how it gets from this stage to actually displaying heading on t...

I overloaded the servers at w3 schools... That was a main resource. Lots of learning by example, which means copying and pasting and understanding single lines of other's code, then editing that to suit the task at hand. That code I posted looks complex at a glance, and it took many hours to put to...