Burger king toy with pi zero

[KonnorJ]

Haha no. You won't get gerbers so don't ask. On helders Instagram "angryhelder" he has a post selling some PCBs

[Helder]

You need to use DSLite buttons for my board and I only ask $5 for them which is generally the cost of the shipping and packaging. Send me a PM if interested.

[Helder]

72BAAC76-4710-420A-8AFB-CE76C2CC44BB.jpeg

Nice! You got a screen in mind for this? Have you got one of these boards to show off?

[ABH]

72BAAC76-4710-420A-8AFB-CE76C2CC44BB.jpeg

Nice! You got a screen in mind for this? Have you got one of these boards to show off?

Thank you Helder
Still working on it
Yes I will use ST7789v 2.0 screen this one
https://m.aliexpress.com/item/329063894 ... sstype=600

Yesterday day I've been able to run it, but there are some software problems I think, everything is excellent, but the colors are a bit dull. “I'm not good at this type of programming I can say it works by luck”

Screen in action
https://instagram.com/p/Bmr-SuPluWv/

7FC2BD42-4976-4F78-B82B-A31E845C9DC0.jpeg (2.75 MiB) Viewed 9104 times

Screen datasheet and wiring if someone interested

0D6B8148-9725-43EE-878E-7C01E4329941.jpeg (191.8 KiB) Viewed 9101 times

1- GND
2- LED-K —-> GND
3- LED-A —-> 3.3
4- VCC —-> 3.3
5- GND
6- GND
7- WR/SPI_A0 —-> D/CX GPIO24
8- CS —-> CSX GPIO8
9- RS/SPI_SCL —-> SCL GPIO11
10- SPI_SDA —-> MOSI GPIO10
11- RESET —-> RESET GPIO25
12- GND

[Helder]

Yea I tried that lcd too but couldn't get it going using a known driver for it too. What driver did you use on it? Maybe I can get it working better and share the info.

[ABH]

Yea I tried that lcd too but couldn't get it going using a known driver for it too. What driver did you use on it? Maybe I can get it working better and share the info.

I've used ili9341 driver but with custom init code.
I followed this tutorial at the bottom of the page
https://www.instructables.com/id/Connec ... out-Board/

1- In this file "/etc/modprobe.d/fbtft.conf" you should add this code :

Code: Select all

options fbtft_device custom name=fb_ili9341 speed=80000000 rotate=270 fps=60 gpios=reset:25,dc:24 modprobe flexfb setaddrwin=0 width=240 height=320 init=-1,0x11,-2,120,-1,0x36,0x00,-1,0x3A,0x05,-1,0xB2,0x0C,0x0C,0x00,0x33,0x33,-1,0xB7,0x35,-1,0xBB,0x1A,-1,0xC0,0x2C,-1,0xC2,0x01,-1,0xC3,0x0B,-1,0xC4,0x20,-1,0xC6,0x0F,-1,0xD0,0xA4,0xA1,-1,0x21,-1,0xE0,0x00,0x19,0x1E,0x0A,0x09,0x15,0x3D,0x44,0x51,0x12,0x03,0x00,0x3F,0x3F,-1,0xE1,0x00,0x18,0x1E,0x0A,0x09,0x25,0x3F,0x43,0x52,0x33,0x03,0x00,0x3F,0x3F,-1,0x29,-3

2- And add this line to the config.txt file

Code: Select all

display_rotate=0x10000

[Helder]

Ok I'll post any new developments with it here for everyone to use. Thanks

[ABH]

Ok I'll post any new developments with it here for everyone to use. Thanks

I found what the cause of screen mirroring
so no need to add anything to the config file.

options fbtft_device custom name=fb_ili9341 speed=80000000 rotate=270 fps=60 gpios=reset:25,dc:24 modprobe flexfb setaddrwin=0 width=240 height=320 init=-1,0x11,-2,120,-1,0x36,0x00,-1,0x3A,0x05,-1,0xB2,0x0C,0x0C,0x00,0x33,0x33,-1,0xB7,0x35,-1,0xBB,0x1A,-1,0xC0,0x2C,-1,0xC2,0x01,-1,0xC3,0x0B,-1,0xC4,0x20,-1,0xC6,0x0F,-1,0xD0,0xA4,0xA1,-1,0x21,-1,0xE0,0x00,0x19,0x1E,0x0A,0x09,0x15,0x3D,0x44,0x51,0x12,0x03,0x00,0x3F,0x3F,-1,0xE1,0x00,0x18,0x1E,0x0A,0x09,0x25,0x3F,0x43,0x52,0x33,0x03,0x00,0x3F,0x3F,-1,0x29,-3

Change 2 to 6 will fix this

20 Playing with this number will darken the colors " but not fix the problem "
0 to lighten the colors " but not fix the problem "


Maybe the information is not useful but I just want to share it.

[Helder]

Very useful, I've been playing with different drivers and that may fix it. The issue is the gamma curve is too high but not finding a lot of info on it to change the settings.

[Helder]

Ok I'll post any new developments with it here for everyone to use. Thanks

I found what the cause of screen mirroring
so no need to add anything to the config file.

options fbtft_device custom name=fb_ili9341 speed=80000000 rotate=270 fps=60 gpios=reset:25,dc:24 modprobe flexfb setaddrwin=0 width=240 height=320 init=-1,0x11,-2,120,-1,0x36,0x00,-1,0x3A,0x05,-1,0xB2,0x0C,0x0C,0x00,0x33,0x33,-1,0xB7,0x35,-1,0xBB,0x1A,-1,0xC0,0x2C,-1,0xC2,0x01,-1,0xC3,0x0B,-1,0xC4,0x20,-1,0xC6,0x0F,-1,0xD0,0xA4,0xA1,-1,0x21,-1,0xE0,0x00,0x19,0x1E,0x0A,0x09,0x15,0x3D,0x44,0x51,0x12,0x03,0x00,0x3F,0x3F,-1,0xE1,0x00,0x18,0x1E,0x0A,0x09,0x25,0x3F,0x43,0x52,0x33,0x03,0x00,0x3F,0x3F,-1,0x29,-3

Change 2 to 6 will fix this

20 Playing with this number will darken the colors " but not fix the problem "
0 to lighten the colors " but not fix the problem "


Maybe the information is not useful but I just want to share it.

Try this (it's the correct screen driver):

Code: Select all

options fbtft_device custom name=fb_st7789v speed=81000000 rotate=270 fps=60 buswidth=8  gpios=reset:25,dc:24 modprobe flexfb setaddrwin=0 width=240 height=320 init=-1,0x11,-2,120,-1,0x36,0x00,-1,0x3A,0x05,-1,0xB2,0x08,0x08,0x00,0x33,0x33,-1,0xB7,0x35,-1,0xBB,0x1A,-1,0xC2,0x01,-1,0xC3,0x3F,-1,0xC4,0x26,-1,0xC6,0x0E,-1,0xD0,0xA4,0xA1,-1,0x21,-1,0xE0,0x00,0x19,0x1E,0x0A,0x09,0x15,0x3D,0x44,0x51,0x12,0x03,0x00,0x3F,0x3F,-1,0xE1,0x00,0x18,0x1E,0x0A,0x09,0x25,0x3F,0x43,0x52,0x33,0x03,0x00,0x3F,0x3F,-1,0x29,-3

I tweaked the best I could to get a decent image, my friend and I are trying to go over all options in the datasheet to see if we can fix the contrast which seems to be the issue with the colors. The brightness seems good in my setup and I removed commands that don't seem necessary, feel free to try my settings on your setup and oh if you need to do a mirror the right way change 0x36,0x00 to either 0x36,0xE0, or 0x36,0x60.