Adafruit ST7789 - ESP32 DeviKit v4

[LDS79]

Adafruit ST7789 Wide Angle 240x240 ESP32 DeviKit v4 I'm try to learn how to use the module Display but If I digit this code:

import display tft = display.TFT() tft.init(tft.ST7789, miso=19, mosi=23, clk=18, cs=5, dc=27) tft.clear(tft.GREEN)

the result is a monitor all purple, in addition also the x y coordinates are totally out of range! if I write: tft.init(tft.ST7789, miso=19, mosi=23, clk=18, cs=5, dc=27, height=240) I see only half monitor and the point 0,0 are still out side of monitor..

Where I'm wronging? Thanks for the help

[valentingregoire]

I have the exact same. For me, the exact range of the screen is (when landscape/landscape_flip):

• x goes from 40 to 279 instead of 0 to 320
• y goes from 53 to 187 instead of 0 to 240 This results in a total different aspect ratio. I dont't like this.

Also the colors are off. Black and white are flipped, the rest is just weird. Even if I try with play around with the bgr parameter.

[LDS79]

I have the exact same. For me, the exact range of the screen is (when landscape/landscape_flip):

• x goes from 40 to 279 instead of 0 to 320
• y goes from 53 to 187 instead of 0 to 240 This results in a total different aspect ratio. I dont't like this.

Also the colors are off. Black and white are flipped, the rest is just weird. Even if I try with play around with the bgr parameter.

[LDS79]

I have the exact same. For me, the exact range of the screen is (when landscape/landscape_flip):

• x goes from 40 to 279 instead of 0 to 320
• y goes from 53 to 187 instead of 0 to 240 This results in a total different aspect ratio. I dont't like this.

Also the colors are off. Black and white are flipped, the rest is just weird. Even if I try with play around with the bgr parameter.

I personally did not find any satisfactory solution and I switched to an OLED... if you find a solution please keep me updated!

[valentingregoire]

I have the exact same. For me, the exact range of the screen is (when landscape/landscape_flip):

• x goes from 40 to 279 instead of 0 to 320
• y goes from 53 to 187 instead of 0 to 240 This results in a total different aspect ratio. I dont't like this.

Also the colors are off. Black and white are flipped, the rest is just weird. Even if I try with play around with the bgr parameter.

I personally did not find any satisfactory solution and I switched to an OLED... if you find a solution please keep me updated!

I have figured out how to fix the colours with this comment: https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo/issues/310#issuecomment-566305438 In this issue, there is more interesting info. I use a LilyGO ESP32 TTGO, so I couldn't switch the display.

Here is my setup that works just fine:

TFT = display.TFT()
# 320 * 240, but in reality x goes from 40 to 279 and y goes from 53 to 187 -> 239 * 134 --> 1.78 ratio instead of 1.33
# --> 240 * 135
TFT.init(
    TFT.ST7789,
    rot=TFT.LANDSCAPE_FLIP,
    miso=17,
    backl_pin=4,
    backl_on=1,
    mosi=19,
    clk=18,
    cs=5,
    dc=16,
    splash=False,
)
TFT.tft_writecmd(0x21)
TFT.setwin(39, 52, 279, 187)  # 240 * 135
TFT.savewin()