#st7789 — Public Fediverse posts

A simple thermal camera implementation based on CH32V003 RISC-V MCU, AMG88xx 8x8 IR camera and ST7789 LCD:
https://github.com/artyom-poptsov/ch32v003-thermal-camera

#projects #riscv #ch32v003 #st7789 #amg88xx

Added fonts and character/text printing procedures to the CH32V003-ST7789 library:
https://github.com/artyom-poptsov/ch32v003-st7789

Implementation of fonts and text output is based on the work of Tilen Majerle.

#riscv #ch32v003 #st7789

A CH32V003 library for ST7789-based displays:
https://github.com/artyom-poptsov/ch32v003-st7789

#projects #riscv #ch32v003 #st7789

Vorstellung des #LilyGo T-Display-S3 mit Gehäuse und ST7789 LCD (ohne Touch)

--> https://cool-web.de/esp8266-esp32/review-lilygo-t-display-s3-ST7789-no-touch-with-case.htm

#Espressif #ESP32 #ESP #ESP32S3 #TDisplay #Display #LCD #IPS #ST7789 #TFT_eSPI #Arduino #Elektronik #Maker #DIY #Mikrocontroller #Anleitung #Tutorial #PlatformIO #VSCode

STM32 Tutorial #70 - ST7789 Display

Introducing the Magic Key - in this video we will be working with the 1.3" ST7789 display.

#STM32 #GettingStarted #Tutorial #STM32CubeMX #STM32CubeIDE #ST7789 #Display #STM32World

https://www.youtube.com/watch?v=5M2c9OoWSEU

Русская «Ардуина»: первый взгляд любителя

Я — самодельщик-ардуинщик со стажем. Люблю пихать ардуины во всякие подходящие и не очень места. Как-то раз я уже показывал свою коллекцию Arduino-совместимых плат, и с тех пор она только росла и ширилась. Теперь в ней случилось особенное пополнение: русская (пока не) народная «Ардуина» ELBEAR от сибирской компании «Элрон» на базе отечественного микроконтроллера MIK32 «Амур», о существовании которой я узнал несколько дней назад из статьи на Хабре . В статье я изложу частный опыт искушённого любителя, который пытается импортозаместить зарубежную Arduino и приспособить данную плату для своих любительских нужд, не залезая в дебри. Конечно, это далеко не первая подобная публикация, с поездкой на поезде хайпа я припозднился примерно на годик. Зато она отражает актуальное положение дел и демонстрирует, чем чреват смелый прыжок веры прямо в неизвестность без предварительного изучения вопроса. К тому же, я не самый обычный ардуинщик. Вкусы мои специфичны: я не сделал ни одной метеостанции, мой дом глуп как пробка, и даже мои часы на Arduino — стрелочные. Вместо этого я делаю вещи, так или иначе связанные с электронными и видеоиграми, демосценой, звуком и музыкой с уклоном в ретро. И разнообразные ардуины мне нужны и интересны именно в этом контексте. А значит, есть шанс, что будет интересно.

https://habr.com/ru/companies/ruvds/articles/919202/

#ruvds_статьи #arduino #arduino_nano #arduino_uno #arduino_ide #ардуина #микроконтроллеры #микроэлектроника #ws2812 #adafruit #амур #мик32_амур #mik32_amur #amur #К1948ВК018 #микрон #элрон #ELBEAR #ELBEAR_ACEUNO #ELBEAR_ACENANO #AY38910 #ST7789 #SH1106 #ILI9488 #ili9341 #импортозамещение

@fast_code_r_us #lcd #control #library #electronics #ST7789

I wrote some ST7789 screen driver Rust code which just takes bytes from memory and flushes them into the screen. It seems to work but somehow the screen turns completely white less than one second after the memory write operation. This used to work fine, so I was wondering if maybe some other driver was interfering with the SPI, but nope, I disabled everything else and it still does that. I wrote a small test program which uses a different library to speak to the ST, and it works just fine. I am probably doing something wrong somewhere, BUT THEN WHY WAS IT WORKING OK BEFORE? I suspect some weird timing issues. Or maybe my driver code is being optimized by the compiler somehow, and things are not being done in the correct order?

I will probably plug in a logic analyzer tomorrow, but if anyone has any tips on how to debug it...

#st7789 #embeddedrust #embedded #rust #electronics

#embedded #st7789 #rustlang #stm32

Making a lil rpi weather clock so that I know how bad the air is... before I step out. Is a silly little toy. When it's done, Imma hang it by the thermostat ... maybe drop $30 on a home pm2.5 sensor to hang outside.

The backend spider/daemon/api is some old, terrifying Jojess-perl. Client in python.

Using waqi.info for the local AQI... NOAA for everything else.

Manufacturer ships (github) libs with some cute roma/hanzi fonts. I'l need to pick a truetype with Kanji.

#ST7789 #python #rpi

Hacked Oscilloscope Plays Breakout, Hints at More https://hackaday.com/2024/04/18/hacked-oscilloscope-plays-breakout-hints-at-more/ #reverseengineering #ToolHacks #Teardown #breakout #CH32F103 #firmware #DSO152 #FNIRSI #ST7789 #debug #risc

Hacked Oscilloscope Plays Breakout, Hints at More - You know things are getting real when the Dremel is one of the first tools you tur... - https://hackaday.com/2024/04/18/hacked-oscilloscope-plays-breakout-hints-at-more/ #reverseengineering #toolhacks #teardown #breakout #ch32f103 #firmware #dso152 #fnirsi #st7789 #debug #risc

Ретро-гейминг на Pico Pi: создаём свою Dendy

Как я создал игровую консоль Dendy на базе Pico Pi с беспроводной зарядкой. Она позволяет играть в игры моего детства.

https://habr.com/ru/articles/796987/

#raspberry #pico_pi #st7789 #дисплей #rp2040 #игровая_консоль #денди #эмулятор_nes #dendy #nes

Here's what we discovered from the Pogo Pin Probing ... For #PineDio Stack #ST7789 Display Connector 🤔

https://lupyuen.github.io/articles/pinedio#problem-with-st7789

Maybe our #ST7789 Display isn't wired for 3-Wire (9-Bit) Interface? 🤔

https://lupyuen.github.io/articles/pinedio?17#problem-with-st7789

We ported moononournation's awesome 9-Bit-Banging Arduino GFX Library to #BL604 ... But something seems broken in our #ST7789 Display 🤔

https://lupyuen.github.io/articles/pinedio?16#arduino-gfx-ported-to-bl604

Nope nothing appears on #PineDio Stack's #ST7789 Display 😭

https://lupyuen.github.io/articles/pinedio?15#does-it-work

Sending 9-Bit Data to #ST7789 ... Over 8-Bit SPI? 🤔

https://lupyuen.github.io/articles/pinedio?12#9-bit-spi-for-st7789

#PineDio Stack uses the 3-Wire Interface for #ST7789 ... Instead of the familiar 4-Wire Interface

https://lupyuen.github.io/articles/pinedio?11#st7789-display

Since our #ST7789 Display doesn't respond to GFX Library 9-Bit Banging ... Maybe our display isn't hardwired for 3-Wire 9-Bit mode? Let's verify IM0 to 3 with the display maker

https://www.rhydolabz.com/documents/33/ST7789.pdf

Disabled Logging in #BL604 GFX Library ... SPI Clock looks cleaner now ... But still nothing on #ST7789 Display 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789_bitbang/pinedio_st7789_bitbang/demo.c

#BL604 GFX Library is indeed Bit-Banging 9-bit data to #ST7789 ... But #PineDio Stack Display is still blank 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789_bitbang/pinedio_st7789_bitbang/demo.c

We run the GFX Library on Linux ... To see the data that will be transmitted to #ST7789 Display

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789_bitbang/test/test.c

Need to verify that our #ST7789 Display is hardwired for "3-line 9bit serial I/F Ⅱ" mode: IM0 = 1, IM1 = 0, IM2 = 1, IM3 = 1 🤔

https://www.rhydolabz.com/documents/33/ST7789.pdf

#BL604 GPIO 17 is now free from the MOSI Curse! But nothing appears on #ST7789 Display 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/demo.c#L53-L75

Verifying the packed #ST7789 9-bit data with a spreadsheet ... Our packing is indeed correct 🤔

https://docs.google.com/spreadsheets/d/1Qy0MjU79s__wzTAFwpTYUUIzLWcrFnKCrvvo_rHamiE/edit?usp=sharing

#PineDio Stack SPI Port is exposed on the GPIO Connector ... Shall we connect a Logic Analyser to troubleshoot #ST7789 Display? 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/demo.c#L227-L2661

Since our #ST7789 Driver Code is in C, let's test it locally on Linux!

https://github.com/lupyuen/bl_iot_sdk/blob/3wire/customer_app/pinedio_st7789/pinedio_st7789/display.c