No, there’s no chip on the membrane keyboard. It’s simply a 5x6 matrix.
Thaddeus Waldner Newdale School Elkton, SD 57026 ________________________________ From: John Dammeyer <jo...@autoartisans.com> Sent: Saturday, February 2, 2019 7:18 PM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] Latching Output multiplexing in HAL If you want to write PIC-18 code using Microchip C another option is repurposing my Electronic Lead Screw. The code is open source so much of it is already in place for the 35 key buttons and LCD display with a menu structure using 4 soft keys. It comes standard with an RS232 port and what is the X axis for a lathe can be reconfigured to be CAN Bus with the addition of the driver chip. One down side might be that the DRO on it is only 16 steps per rev so 64 pulses with quadrature. But again, the code to support that is there. And another negative is it doesn't come in any sort of box. You have to mount it yourself. If I can ever find the time to retire I'll probably make it some sort of DRO and control panel for the Mill. For now one of them is used to control the Knee stepper motor (Gecko Driver) for my mill until I finish everything else to convert the mill to CNC. Beats cranking it up and down by hand. John Dammeyer "ELS! Nothing else works as well for your Lathe" Automation Artisans Inc. http://www.autoartisans.com/ELS > -----Original Message----- > From: Gregg Eshelman via Emc-users [mailto:emc- > us...@lists.sourceforge.net] > Sent: February-02-19 4:56 PM > To: Enhanced Machine Controller (EMC) > Cc: Gregg Eshelman > Subject: Re: [Emc-users] Latching Output multiplexing in HAL > > Any chips on the control panel, especially directly on the keyboard or one > the keyboard is connected to via a multi-wire cable? Somewhere in there > may be a matrix encoder and RS232C chip. If you have RS232C then it should > be possible to tap into that to feed character data into a modern control > computer. I was thinking about doing that on a knee mill with an old Anilam > system. The membrane keyboard connected to a little board with a matrix > encoder and RS232C chip. From there it was a serial connection to the > system in the big box. Should've been possible to feed that data into LCNC. > But I sold the panel to someone repairing a same model Anilam control. > > > On Saturday, February 2, 2019, 3:49:03 PM MST, Thaddeus Waldner > <thadw...@gmail.com> wrote: > > The engraver/router that I am retrofitting is for use at the school where I > teach. The big idea is to provide students with an opportunity to learn about > industrial CNC control without spending too much money up front� also > down the road in the case of the inevitable crash. > > The original controller ran off a printer driver of sorts, and was not really > suitable for anything 3d and didn�t run G-Code. Using a Mesa 7i96 + 7i73 I > was able to (hope to be able to) take care of the I/O hardware for well > under $200, which is nothing short of amazing in my opinion. I bought the > 7i73 before mapping out the key wiring on the original control panel, > thinking that since it�s only 22 keys and 11 wires coming out of the unit,� it > should work. Turns out I was wrong, but � > > With any approach, I needed to make some sort of patch cable or board to > connect the existing control panel up to the the MESA card, and adding > some buffers to that card is simple enough. The other issue with the 7i73 is > that the outputs with their rating of just 4mw are not really suitable for > running display LEDs. The latch circuit takes care of that issue as well. I > will > document it once I have it working. > > Your idea of a pendent that generates g-code is an interesting one. I am > running NativeCAM on this machine. > _______________________________________________ > 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 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
