Servo Driver - I2C interface

[PatrikE]

Would it be possible to use this to free resourses in MWii?
Adafruit 16-Channel 12-bit PWM/Servo Driver - I2C interface

Do all calculations in MWii and send the I2C commands to Servo Driver who take care of the handling of motors and servos..

/Patrik

[howardhb]

Yes!
I2C converters connected to speed controllers are successfully being used on other copter platforms.
http://shrediquette.blogspot.com/p/shre ... e-dlx.html
or, without a converter, the ESC's simply need to be flashed with new firmware, and a slight pcb mod to bring I2C pins out.
Info here: http://www.rcgroups.com/forums/showthre ... hlight=i2c

H.

[timecop]

Only problem is that pesky "sending i2c commands" part.
It's DAMN SLOW.

[copterrichie]

Only problem is that pesky "sending i2c commands" part.
It's DAMN SLOW.

But Dongs, you have worked with I2C ESCs, is there any way to speed it up making it useful? What about making it SPI?

[timecop]

Then there's no point as you're just adding more wires.

[kos]

is i2c speed an issue in essence or only related to this particular board ?

i am not a C/hardware guy so feel free to point any obvious technical point that i surely have missed

i plan to use OutPut.pde as a standalone i2c Motor/Servo expander ..