PWMs on the new roboRio issues

[JDNovak]

There are a total of 20 PWMs available. 10 available on board and up to 10 through the expansion port. The 8 limit is probably Analog Inputs. There are 4 on board and 4 through the expansion port.

CAN is a communications protocol that all cars use to communicate betweem control systems. It is also widely used in industrial controls.
The only CAN device currently supported on the CRio is the Jaguar speed controller. The protocol was tacked on to the controller through the serial port or on ethernet through a bridge called the 2CAN.
The RoboRio has hardware CAN support on board and the Pneumatic module and power monitoring subsystems will communicate through it. Jaguars will be supported and hopefully other CAN I/O and speed controllers will emerge.

[Mr V]

As John mentioned CAN (Controller Area Network) is used by all new cars and is a very reliable communication protocol. The connectors used on the Jaguar are less than super reliable and the original versions of the Jaguar weren't the most reliable but that does not mean that CAN is unreliable. I've heard that the there will be a CAN version of the Talon eventually hopefully soon as it would complement the CAN functions of the RoboRIO.

[Tyler2517]

I have heard of a new Jag that uses the same tech as the talon( size and weight reduction) along with CAN.

[Dunngeon]

I remember reading that Cross the Road Electronics was working on a CAN compatible Talon to be released next year with the roboRio. Let me find the article

Edit:

Found it

http://robobees.org/downloads/DC%20-...esentation.pdf

page 17 says CAN bus Talon confirmed

[adciv]

That's what they told me when a few of us were up in NH for testing, anyway.

Also, if you need more than 8 Analog Inputs, some teams have developed Arduinos to communicate over Ethernet or I2C for feedback to the RIO. If you need more inputs, this is a perfectly valid solution. Outputs can be another matter at times.

Our team's record for most motors used was 9 with Rebound Rumble.