On Jan 11, 2020, at 6:19 PM, bill richardson via Groups.Io <ng1p.bill@...> wrote:

?I did this mod to my V6 and with the Nextion display my current draw dropped from 350ma to 250ma (TFT draws 100ma more!) also I wired a on off switch so I could remove 5v from the display. With the display off I’m seeing just 150ma. I will also add the 5v regulator is running much cooler. I like the option of shutting off the display to save on battery life.

One other thing I did differently was instead of using a angled display plug I just simply solder to the back side of the board (keeps the wires out of the way) I also drilled the Nextion mounting holes a little wider so all 4 mounting screws are in place on the front of the display.

73 thanks for the great mod. Bill ng1p?

On Jan 6, 2020, at 5:29 PM, bill richardson via Groups.Io <ng1p.bill@...> wrote:

?Sounds excellent. I may do what you did. I’m looking at ways to save on current and I really like the CDC code. If you remove the 5v from the display I assume the radio will still operate? With your hookup it would be easy to add a switch.

On Jan 6, 2020, at 4:50 PM, wb2cba@... wrote:

?

Hi Bill,

Before the mod I checked each display’s datasheet to compare power consumption and ?both draws around 60 to 65 ma of current.

I didn’t actually measure the current draw on the raduino board 7805 regulator but it does feel hot with both displays, stock and nextion. May be it is a good idea to swap the heatsink with a notch bigger one.

I used the rig continously for almost 3 hours yesterday for qso’s and nothing smoked up so I think it’s surviving the heat ?:)

Barb, WB2CBA