sudomod

Just wondering if the PSU from Helder can have battery monitoring
work in conjunction with a DPI adapter; such as Tinkerboy's DPI or
the Mattc 18bit DPI?

Im asking because when you set the Pi's GPIO to output RGB
information for the DPI adapter, it looks like there is no longer
pinouts for SDA and SCL.

Planning on using this combo on an upcoming build.
thanks.

X.. wrote: ↑

Sun Mar 31, 2019 11:37 pm

Just wondering if the PSU from Helder can have battery monitoring
work in conjunction with a DPI adapter; such as Tinkerboy's DPI or
the Mattc 18bit DPI?

Im asking because when you set the Pi's GPIO to output RGB
information for the DPI adapter, it looks like there is no longer
pinouts for SDA and SCL.

Planning on using this combo on an upcoming build.
thanks.

if the SDA and SCL GPIO are being used by any DPI adapter
then your out of luck (those GPIO need to be unused and free for use)....
(even if your powering the whole system with Helder PSU)

this applies to this method

https://github.com/HoolyHoo/Mintybatterymonitor



but...
seeing as your using a DPI adapter
this would imply that your not having the controls via the GPIO...
and will be using some kind of micro controller, either on its own or one that has been integrated onto a Button PCB....

then the other option available would be something like this...

viewtopic.php?f=22&t=2970
viewtopic.php?f=22&t=2970&start=40#p33526

I would suggest that you thoroughly read through this post....
as its just not only for Helder AIO, but the principle/method can be transferred/implemented on other devices




.

X.. wrote: ↑

Sun Mar 31, 2019 11:37 pm

Just wondering if the PSU from Helder can have battery monitoring
work in conjunction with a DPI adapter; such as Tinkerboy's DPI or
the Mattc 18bit DPI?

Im asking because when you set the Pi's GPIO to output RGB
information for the DPI adapter, it looks like there is no longer
pinouts for SDA and SCL.

Planning on using this combo on an upcoming build.
thanks.

Using the I2C on the Camera connector you can use the battery monitoring feature.

look here:
https://hackaday.com/2014/07/24/adding- ... interface/
also here:
https://elinux.org/RPi_BCM2835_GPIOs

the camera has GPIO 28 and 29 which are the alternate SDA and SCL ,if you're on the discord server try asking othermod about it as he uses this setup on his boards with DPI screens.

You guys are great, I have some reading to do.

I will be using wither a Teensy LC or one of those knock-off pro-micro controllers for my button commands.
I think I will have to use this as a solution since I will be stripping down my RP3A+ of everything pretty much to fit into my gameboy pocket case.