3a+ Battery Life

[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

[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

[VeteranGamer]

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....


.

[infinitLoop]

yeah, i started with the adafruit, but it didn't push enough current for the build. i always had the lightning bolt.

[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

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/

[ABH]

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?

[infinitLoop]

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

[VeteranGamer]

I followed this guide for the screen I had no luck with 60fps...
https://www.instructables.com/id/Connec ... out-Board/

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)

Code: Select all

sudo nano /etc/rc.local

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













.

[ABH]

I followed this guide for the screen I had no luck with 60fps...
https://www.instructables.com/id/Connec ... out-Board/

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)

Code: Select all

sudo nano /etc/rc.local

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

[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?