Why use the 7i73 if it lacks the I/O pins you need? or if you like it, use two of them. A touch screen might be the best solution for a main control panel.
Do you have all the logic worked out for how the buttons will work and the function of each one? I would be good to see it. What I really want and this is whyIve not done it, is a good conversational control system. One that will do common tasks with no need to use CAM ir write code. I should be able to mill a flat surface or drill a few holes with just a few taps of the finger. It needs to be simple and easy for an operatorto figure out. My plan was that the pendent controller actually generates g-code then the machine itself only has to do what it already is good at. The conversational logic would live inside the hand held pendant. But it is not clear how the controls should operate On Sat, Feb 2, 2019 at 5:35 AM Thaddeus Waldner <thadw...@gmail.com> wrote: > I’ll take the big round hand wheel encoder knob. Perhaps in applications > where the motion is not so rigidly define as “along the x axis” or “Z-“, > such as on 6-axis robots, it might be better to have more flexible input. > > This is not a pendent; it’s the main control panel on the machine. It > would be nice to jog two axis simultaneously but one-key-only isn’t a > showstopper, which is why I went ahead with the plan in the first place. > > After some thought on this, I think I can make it work with the pair of > 74HC573 I had planned to use initially. I was not thinking straight when I > considered using a 74HC154 because those would only let me turn on one LED > at a time. > > > > Thaddeus Waldner > > ________________________________ > From: Chris Albertson <albertson.ch...@gmail.com> > Sent: Saturday, February 2, 2019 1:49 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Latching Output multiplexing in HAL > > I had not seen the 7i73. > > I'm slowly putting together a pendent but I'm using a generic STM32F type > development board. One advantage is that these cost about $13, can > connect back to the PC using USB and have a lot more IO. > > But to tell the truth, the project is stalled because I don't know what I > want this pendent to do. I keep thinking that maybe what I want is a cell > phone app that maybe runs on a low-cost Android tablet. Those tablets are > very attractive. Android is linux based, has a nice touch screen and > radios for wireless use. but then I really like the big round hand > wheel encoder knob. So I admit to not knowing what's best. > > But if you have a 7i73. I'd use the built-in scanner. > Do you really need n-key rollover on a pendent? I'd think you would be > punching buttons with one finger. Roll over would be impossible with just > one finger. > > > On Fri, Feb 1, 2019 at 9:46 PM Thaddeus Waldner <thadw...@gmail.com> > wrote: > > > > > > On Feb 1, 2019, at 10:48 PM, Chris Albertson < > albertson.ch...@gmail.com> > > wrote: > > > > > > One plan would be to use a purpose designed keyboard scanner chip. This > > > would have a serial I2C output that sends data when a button is > pressed. > > > There are MANY such chips available. > > > > > I didn’t think of that. How would I connect an i2C device? > > This input panel includes the start, stop, jog, … > > > > I am still inclined to use the 7i73 keyboard scanner but I am intrigued > > because the 7i73 manual appears to state that it only allows one keypress > > at a time to avoid phantom keystrokes. I would like to have a 2-key > > rollover. Can anyone confirm how the 7i73 treats simultaneous keys? > > > > > On Fri, Feb 1, 2019 at 7:05 PM Thaddeus Waldner <thadw...@gmail.com> > > wrote: > > > > > > Chris Albertson > Redondo Beach, California > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
