KD8CEC firmware v1.2 with factory display


K4LXY
 

Can the KD8CEC v1.2 firmware be used with the standard factory display in v6?

I guess I can probably download the sketch -I should be able to tell from that - but I'd appreciate any information.

I used his firmware long ago with v3 and liked it.

Thanks

73 Howard K4LXY


Evan Hand
 

hi Howard,

The answer is no, there is not enough room in the KD8CEC firmware to allow for the screen painting that the stock display requires.  The KD8CEC firmware works with one of the text displays or one of the Nextion displays.  The text display is a simple interface, and the Nextion graphics display has its own processor for heavy graphics manipulation.

There is a 2.8" Nextion display that fits in the stock case with only a little bit of filing on the display hole.  there is also a Teensy Raduino board available from others that can drive the display and has reserve processing capabilities that you could add more features through software.

At a minimum, I would look at either Reed N's firmware or N8ME software that can be run with the stock hardware.  They correct some issues with frequency scrolling and CW operation.  They are free and can be found in the files section of this reflector for the N8ME or GitHub for Reed N's

73
Evan
AC9TU


K4LXY
 

Thanks, Evan. That's helpful.

I may install the Nextion display eventually though I've heard concerns that it puts out a lot of RFI.  I had downloaded the N8ME sketch and was thinking I would try that, so probably will do so given your information.  My main interest is an improvement in CW operation - the stock firmware has an irritating delay when keying.

I got the V6 recently as a kind of winter project, to see if I could make it "cw-worthy."  I had done a lot of mods on the v3 but it never was very good on cw.  The V6 seems somewhat more promising.

73, Howard K4LXY


K4LXY
 

One other question: Is it necessary to recalibrate frequency and BFO after installing the N8ME firmware, or is the original calibration retained?
Thanks
Howard K4LXY


Evan Hand
 

Howard,

I have not installed the N8ME software, but for the other version the calibration EEPROM is not changed, so recalibration is not needed as long as you use the same Nano.  If you change the Nano then you do need to recalibrate.

Maybe someone who has done the upgrade can comment before you take the plunge.  Recalibrating can be an issue.
73
Evan
AC9TU