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Panel Due brightness control

Posted by JuJuDelta 
Panel Due brightness control
April 30, 2017 07:58AM
I have a 4.3" and 7" LCD and panel due running latest version of firmware.
Pressing the brightness +/- buttons on the display doesn't seem to do anything.

I notice that on the back of the LCD PCB there are links for backlight control:
1963_PWM, LED_A, Always on.
No effect with any setting.

Any ideas ?
Re: Panel Due brightness control
April 30, 2017 08:58AM
The brightness control only works on PanelDue version 2.0 boards. I guess you have an earlier version.


Delta printer calibration calculator, mini IR Z probe, and colour touch screen control panel: [escher3d.com]

Large delta printer, and other 3D printer blog postings: [miscsolutions.wordpress.com]

Disclosure: I have a financial interest in sales of the Panel Due, Mini IR height sensor, and Duet WiFi/Duet Ethernet.
Re: Panel Due brightness control
April 30, 2017 09:11AM
Thanks David.

Is it as simple as a wire mod ?
Are the schematics for v1 and v2 open source and available ?


Regards,

Julian S.

T3DP3D Mini Kossel, E3D V6 hot end, 0.4mm nozzle, 200mm diameter Ali heated bed, Duet v0.8.5 & dc42 rep rap v1.18. DWC v1.15, PanelDue-7-1.16 DC42 IR Z Probe, 2 X MAX31855 &Thermocouples, PID heated enclosure, SolidWorks 2017, slic3r
Re: Panel Due brightness control
April 30, 2017 12:36PM
Yes, see [github.com]. In version 1.1, R1 is 0R and connected between LED_A and +5V. In version 2.0 it is 470R and connected between LED_A and pin 4 of the microcontroller.


Delta printer calibration calculator, mini IR Z probe, and colour touch screen control panel: [escher3d.com]

Large delta printer, and other 3D printer blog postings: [miscsolutions.wordpress.com]

Disclosure: I have a financial interest in sales of the Panel Due, Mini IR height sensor, and Duet WiFi/Duet Ethernet.
Re: Panel Due brightness control
April 30, 2017 01:29PM
Hi David, thanks for the info.
The schematics will enable m to mod my v1.1 PCB.

Done it, worked a treat

Edited 1 time(s). Last edit at 04/30/2017 02:47PM by JuJuDelta.


Regards,

Julian S.

T3DP3D Mini Kossel, E3D V6 hot end, 0.4mm nozzle, 200mm diameter Ali heated bed, Duet v0.8.5 & dc42 rep rap v1.18. DWC v1.15, PanelDue-7-1.16 DC42 IR Z Probe, 2 X MAX31855 &Thermocouples, PID heated enclosure, SolidWorks 2017, slic3r
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