I2C ports on APM 2.6 for SONAR

Archive
1

Hi
as can be seen on the APM 2.6 board, Compass module connects via an I2C port,
if we connect GPS module and Compass to APM 2.6 (so two ports have engaged), then can we still connect SONAR module through I2C?
let me clarify:
my question is "[color=#0000FF]Which ports on APM 2.6 board is I2C port?[/color] Can we use telem or older GPS port as an I2C port to connect SONAR through it? suppose that we can configure the hardware and software required to change I/O from APM 2.6 to a digital SONAR module)
thanks

2

@Mehras,
Unfortunately I2C Sonar is only supported on the Pixhawk: http://copter.ardupilot.com/wiki/common-rangefinder-maxbotixi2c/
Regards,
TCIII GM

3

[quote=“TCIII”]@,
Unfortunately I2C Sonar is only supported on the Pixhawk: http://copter.ardupilot.com/wiki/common-rangefinder-maxbotixi2c/
Regards,
TCIII GM[/quote]

thanks for your answer,
yes I know that APM 2.6 doesn’t support I2C SONARs by default but according to this post we can make a connection between an I2C SONAR & APM using an Arduino board, to read the signals from SONAR and sending them to APM, and vice versa:
diydrones.com/profiles/blogs/cre … 245&page=3

my question is: if I’ve already connected GPS & Compass, so that two I2C ports engaged, is there any other I2C port to use for SONAR-Arduino? i.e: telem, Old GPS ports…
thanks

4

@Mehras,
The normal 3DR GPS does not use I2C to communicate with the APM. The GPS uses one of the APM UARTS.
Only the Compass communicates with the APM over I2C.
Regards,
TCIII AVD

5

OK, thanks :slight_smile:[quote=“TCIII”]@Mehras,
The normal 3DR GPS does not use I2C to communicate with the APM. The GPS uses one of the APM UARTS.
Only the Compass communicates with the APM over I2C.
Regards,
TCIII AVD[/quote]