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3a+ Battery Life
Posted: Fri Feb 08, 2019 10:40 am
by infinitLoop
I'm curious if anyone has tested how much play time they can get with a 3A+ builds. I have mine using helder's psu and 4500 mah battery, and that gets me just over an hour before the safe shutdown engages, after a full charge...
maybe the screen is a big draw (one of the bw variants)? maybe that's just what you can get from it? maybe the battery monitor's thresholds need tweaking? other than the pi and screen, i have tinkerboy's v3 board, but nothing else plugged into the usb or elsewhere. i do have some led backlighting under the buttons, but there is a switch to turn those off independently, and when i've been testing it for duration, i had those off.
before i start breaking down and testing each piece (if it gets that far), i just wanted to see what performance others were seeing.
thanks
Re: 3a+ Battery Life
Posted: Fri Feb 08, 2019 11:10 am
by ABH
I get 1:40 hours from 850mah “Nds battery” which is much higher than I expected..
My setup :
Raspberry pi 3 A+
ili9341 3.2 screen
I2s audio
Powerboost 1000 Basic
Re: 3a+ Battery Life
Posted: Fri Feb 08, 2019 11:43 am
by VeteranGamer
ABH wrote: ↑Fri Feb 08, 2019 11:10 am
I get 1:40 hours from 850mah “Nds battery” which is much higher than I expected..
My setup :
Raspberry pi 3 A+
ili9341 3.2 screen
I2s audio
Powerboost 1000 Basic
that's very impressive.....
I'm just building something with the Pi3 A+
a couple of things....
with the Powerboost 1000 basic, are you getting any under voltage indicators
also what are you using to enable the SPI screen
is it similar to what Moosepr guide shows
or is something like this (which claims 60FPS)
https://github.com/juj/fbcp-ili9341
thanks....
.
Re: 3a+ Battery Life
Posted: Fri Feb 08, 2019 11:45 am
by infinitLoop
yeah, i started with the adafruit, but it didn't push enough current for the build. i always had the lightning bolt.
Re: 3a+ Battery Life
Posted: Fri Feb 08, 2019 12:14 pm
by ABH
VeteranGamer wrote: ↑Fri Feb 08, 2019 11:43 am
ABH wrote: ↑Fri Feb 08, 2019 11:10 am
I get 1:40 hours from 850mah “Nds battery” which is much higher than I expected..
My setup :
Raspberry pi 3 A+
ili9341 3.2 screen
I2s audio
Powerboost 1000 Basic
that's very impressive.....
I'm just building something with the Pi3 A+
a couple of things....
with the Powerboost 1000 basic, are you getting any under voltage indicators
also what are you using to enable the SPI screen
is it similar to what Moosepr guide shows
or is something like this (which claims 60FPS)
https://github.com/juj/fbcp-ili9341
thanks....
.
There’s no under voltage indicators at all..
I tested with original raspberry pi 3 in my SupaBoy build and 3A+ Im my sp build it’s working good there’s no any powering issues
I followed this guide for the screen I had no luck with 60fps...
https://www.instructables.com/id/Connec ... out-Board/
Re: 3a+ Battery Life
Posted: Fri Feb 08, 2019 12:17 pm
by ABH
infinitLoop wrote: ↑Fri Feb 08, 2019 11:45 am
yeah, i started with the adafruit, but it didn't push enough current for the build. i always had the lightning bolt.
Basic or 1000c?
Re: 3a+ Battery Life
Posted: Fri Feb 08, 2019 12:25 pm
by infinitLoop
ABH wrote: ↑Fri Feb 08, 2019 12:17 pm
infinitLoop wrote: ↑Fri Feb 08, 2019 11:45 am
yeah, i started with the adafruit, but it didn't push enough current for the build. i always had the lightning bolt.
Basic or 1000c?
1000c --- but... if my problem is my screen is a power-suck, maybe that was messing with me the whole time
Re: 3a+ Battery Life
Posted: Sun Feb 17, 2019 11:20 am
by VeteranGamer
I've been able to enable this method....
https://github.com/juj/fbcp-ili9341
now...
I haven't tested it completely to see if its actually really producing
60FPS (but it does look smoother)...
but one thing that is definitely noticeable is that amount of tearing (its a lot less than the other methods)
this is how I enabled it....
some of this may not be necessary, as it already may be disabled/enabled...
but I did it anyway...
via
Raspi Config (in the Retropie menu)
disable SPI
enable Overscan
reboot
I've done this via SSH
this is meant to be done at the end, but I found I couldnt even get to this point (so I've done it first)
and add this before end
Code: Select all
/home/pi/fbcp-ili9341/build/fbcp-ili9341 &
now just follow these steps
Code: Select all
sudo apt-get install cmake
git clone https://github.com/juj/fbcp-ili9341.git
cd fbcp-ili9341
mkdir build
cd build
cmake -DSPI_BUS_CLOCK_DIVISOR=6 -DILI9341=ON -DARMV8A=ON -DGPIO_TFT_DATA_CONTROL=24 -DGPIO_TFT_RESET_PIN=25 -DSTATISTICS=0 -DDISPLAY_ROTATE_180_DEGREES=ON ..
make -j
sudo ./fbcp-ili9341 &
this may be of use to some....
but please be aware
this for a RPi3 (-DARMV8A=ON)
a RPi0 would be (-DARMV6Z=ON), ....
the wiring is the same as
viewtopic.php?f=22&t=2312
https://www.instructables.com/id/Connec ... out-Board/
this is because of the adapter/connectors i used
viewtopic.php?f=25&t=5614
you can edit the setup to however you have it wired (within reason)
also I have my LED connected directly to the VCC....
but there are other options for this.....
please have a look here for more info
https://github.com/juj/fbcp-ili9341#if- ... i-yourself
https://github.com/juj/fbcp-ili9341#spe ... ld-options
.
Re: 3a+ Battery Life
Posted: Sun Feb 17, 2019 12:20 pm
by ABH
VeteranGamer wrote: ↑Sun Feb 17, 2019 11:20 am
I've been able to enable this method....
https://github.com/juj/fbcp-ili9341
now...
I haven't tested it completely to see if its actually really producing
60FPS (but it does look smoother)...
but one thing that is definitely noticeable is that amount of tearing (its a lot less than the other methods)
this is how I enabled it....
some of this may not be necessary, as it already may be disabled/enabled...
but I did it anyway...
via
Raspi Config (in the Retropie menu)
disable SPI
enable Overscan
reboot
I've done this via SSH
this is meant to be done at the end, but I found I couldnt even get to this point (so I've done it first)
and add this before end
Code: Select all
/home/pi/fbcp-ili9341/build/fbcp-ili9341 &
now just follow these steps
Code: Select all
sudo apt-get install cmake
git clone https://github.com/juj/fbcp-ili9341.git
cd fbcp-ili9341
mkdir build
cd build
cmake -DSPI_BUS_CLOCK_DIVISOR=6 -DILI9341=ON -DARMV8A=ON -DGPIO_TFT_DATA_CONTROL=24 -DGPIO_TFT_RESET_PIN=25 -DSTATISTICS=0 -DDISPLAY_ROTATE_180_DEGREES=ON ..
make -j
sudo ./fbcp-ili9341 &
this may be of use to some....
but please be aware
this for a RPi3 (-DARMV8A=ON)
a RPi0 would be (-DARMV6Z=ON), but I havent tested it on that yet....
the wiring is the same as
https://sudomod.com/forum/viewtopic.php?f=22&t=2312
https://www.instructables.com/id/Connec ... out-Board/
this is because of the adapter/connectors i used
https://sudomod.com/forum/viewtopic.php?f=25&t=5614
you can edit the setup to however you have it wired (within reason)
also I have my LED connected directly to the VCC....
but there are other options for this.....
please have a look here for more info
https://github.com/juj/fbcp-ili9341#if- ... i-yourself
https://github.com/juj/fbcp-ili9341#spe ... ld-options
.
I’ll try, Thank you so much
Re: 3a+ Battery Life
Posted: Sat Mar 23, 2019 11:59 am
by mouth78
I burnt mintypi v4 and works OK with a 3.2" SPI TFT LCD but I wanted to try to improve quality screen so I followed all that steps. The result is a screen full of deformed lines
Have I to burn the image of mintypi again?