Just a small word of warning here. I did the analog input thing with the Arduino. There is code on the wiki that already works well. BUT!!!! the usb route is not reliable for critical applications. Due to the fact that the usb is not hot pluggable, it will disappear from the devices list with any small hiccup or loss of connection. This happens frequently where inductive machines/loads are present. Normally the connection will be restored automatically but with linuxcnc it is gone once dropped. You have to restart the controller.
I am busy with a IO expander for the parport and instead of using the usb like before, I am using three pins and writing a i2c interface to communicate with the devices. Kirk Wallace has done a circuit and driver code for an AToD and DAC board. These are also on the wiki but if you cannot find it let me know and I will hunt the link down again. On 2014-05-13 10:31, a k wrote: > hi > with Arduino Nano i can use USB to access EMC2 and control feed? > is this right? > thanks > aram > > > On Mon, May 12, 2014 at 3:12 PM, andy pugh <[email protected]> wrote: > >> On 12 May 2014 21:46, a k <[email protected]> wrote: >> >>> Can i use USB to go directly into EMC2 architect and control feed >>> or i need use some axis analog input? >> I have just realised that an Arduino Nano is about $6. Those have 4 >> analogue 0-5V inputs, and there is a HAL module to interface with them >> via USB. >> (Or, alternatively, you could make one output pulses for an encoder >> counter if you really needed proper realtime response). >> >> http://emergent.unpythonic.net/01198594294 >> >> -- >> atp >> If you can't fix it, you don't own it. >> http://www.ifixit.com/Manifesto >> >> >> ------------------------------------------------------------------------------ >> "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE >> Instantly run your Selenium tests across 300+ browser/OS combos. >> Get unparalleled scalability from the best Selenium testing platform >> available >> Simple to use. Nothing to install. Get started now for free." >> http://p.sf.net/sfu/SauceLabs >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. > Get unparalleled scalability from the best Selenium testing platform available > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Regards /Groete Marius D. Liebenberg +27 82 698 3251 +27 12 743 6064 QQ 1767394877 ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
