Hello there !
I’m actually playing around with a RAK 4631/5005 Board with the Paperwhite and button extension.
No luck with the latest 1.3x version flashed. All i see on the display is ant race
any ideas ?
If you have gps module also installed or possible bad connection, check your e-paper cable connection.
Yes: gut GPS Module Installed.
thats why ?
Yes, the e-ink dc gpio pin is also used by the gps module pps, if i recall correctly
works without GPS.
Any way to make it work with gps ?
When i added support for that e-paper i did not have a GPS module, I still do not
Refer to the RAK13002 picture below for the IO pins and the variant file at the end
The only possible way i see is to move around some pins used and using
We just need to revolve the IO1 (GPIO 17) used by both GPS and e-Paper DC (we can move them to IO3 or IO6 - used by Left and Right Button)
DESPI-C02 e-Paper module (pictured below connected to a 1.54 inch e-paper)
RAK13002 IO board (pictured below)
User Button (Still connected to IO5)
RAK13002 IO board
Below are some more relevant links
I’m using the 14000 e-Paper display from RAK and the GPS.
The GPS uses the UART port.
Shouls work ?
The RAK14000 or RAK1910 would require re-design to solve the issue
In slot A the GPS needs IO1 and IO1 is needed by the e-ink (that what the explanation and solution was all about above…)
And the GPS Module has to sit in Slot A.
Any chance to have the redesign done ?
If i understood right, this constellation should work from hardware side.
- i think the RAK combo with GPS and E-Paper out of the shelf is very nice
The 1910 days s eol, the newer gps is I2C, may be a better choice