Marc's Public Blog - Arduino Hacking

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Table of Content for arduino:

2024/06/29: Putting 27 P5 64x32 Azerone Panels To Good Use, a Big 288x192 Matrix (single page)
2024/06/27: Testing Azerone P5 vs P4 vs P2 RGBPanels to Display My 128x192 Outfit Matrix (single page)
2023/08/29: 2023 Burning Man Illuminaughty LED Meetup (single page)
2023/06/16: Party LED Outfit Version 6: Self Contained Power System on LED Panels (single page)
2023/05/17: Party LED Outfit Version 5.5: Flexible P15 LED Strings, LED Fanny Pack, Rez Inspired LED Goggles, LED Laces and LED Shoes (single page)
2023/04/07: Managing a chicken coop door and checking water level with RC Plane Servo and ESP8266 (single page)
2022/03/22: Putting some P5 64x32 Azerone Panels To Good Use, a Big 128x192 Matrix (single page)
2022/01/09: LED Pants and Shirt v5 on ESP32 and Raspberry Pi with P2 RGBPanels and Wifi (single page)
2022/01/02: FastLED_ArduinoGFX::TFT on top of Framebuffer::GFX for SPI TFTs like SSD1331 or ILI9341 (single page)
2021/01/23: Hacking 2 LCA/Linux.conf.au SAO Badges, Micropython and Double SPI Quad Screen C++ One (single page)
2021/01/23: Linux.conf.au 2021 LED Talk (single page)
2020/12/16: Seeed Studio Arduino Sensor Kit Base (single page)
2020/03/16: Framebuffer::GFX, Choosing between its 3 2D APIs: FastLED XY(), NeoMatrix, and LEDMatrix, and detail of its many supported hardware backends (single page)
2020/03/13: RGB Panels, from 192x80, to 384x192, to 384x256 and maybe not much beyond (single page)
2020/01/24: Running Arduino code with 2D FastLED, Adafruit::GFX, and LEDMatrix displays on Linux (single page)
2020/01/14: LCA 2020 Talk, ESP32 Memory Management, Neopixels and RGBPanels (single page)
2020/01/14: Linux.conf.au Open Hardware Miniconf 2020: Dingo Car with Tensorflow Video Analysis v2 (single page)
2020/01/01: Running FastLED, Adafruit::GFX, and LEDMatrix code on High Resolution RGBPanels with a Raspberry Pi (single page)
2019/05/26: FastLED_SPITFT::GFX on top of Framebuffer::GFX for SPI TFTs like SSD1331 or ILI9341 (single page)
2019/04/27: Comparing FastLED::NeoMatrix and SmartMatrix::GFX with PixelMatrix Aurora and Table ME Demos (single page)
2019/04/08: Clubbing, EDM Festival and Burning Man LED Pants and Shirt v4 on ESP32 with RGBPanels and SmartMatrix::GFX (single page)
2019/04/01: SmartMatrix, SmartMatrix Shield v4 for Teensy, ESP32 shield with level shifter, and SmartMatrix::GFX (single page)
2019/03/30: Using FatFS FFat on ESP32 Flash With Arduino (single page)
2019/01/24: Linux.conf.au 2019: Using Open Hardware from my shirt to OS testing for Google's Fuchsia (single page)
2019/01/21: Donkey Car with Tensorflow Video Analysis at Open Hardware Miniconf at Linux.Conf.au 2019 (single page)
2018/07/30: Building a 64x64 Neopixel Neomatrix (4096 pixels) running NeoMatrix-FastLED-IR (single page)
2018/07/13: AnimatedGIFs for SmartMatrix or NeoMatrix (Neopixel/WS2812B) from SDcard or SPIFFS, on Teensy 3.x, ESP8266, or ESP32 (single page)
2018/05/29: EDM Party Shirt powered with FastLED::NeoMatrix and Adafruit::GFX, plus 160Wh (10Ah/4S) worth of lipos (single page)
2018/04/23: FastLED::NeoMatrix library: how to do Matrices with FastLED and Adafruit::GFX (single page)
2018/01/22: Lolibot, FPGA Primer, MicroPython for ESP8266/ESP32 and Protocol Analysis at Open Hardware Miniconf at Linux.Conf.au 2018 (single page)
2017/06/02: LED Pants and Shirt Programmed With Arduino on ESP8266 (single page)
2017/04/24: Adafruit GFX on NeoMatrix and RGB Matrix Panel Demo (single page)
2017/04/16: IoTuz Driver ported to Expressif ESP32 WROVER board (single page)
2017/04/03: Arduino 328P Uno Teensy3.1 ESP8266 ESP32 IR and Neopixels (single page)
2017/01/16: IoTuz Driver for our ESP32 board built at Open Hardware Miniconf at Linux.Conf.au 2017 (single page)
2016/02/01: ESPlant, Arduino Miniconf at Linux.Conf.AU 2016 (single page)
2015/01/06: Driver for direct driving single to 3 color LED Matrices with software PWM (single page)
2013/09/14: Arduino Training and Hacking at Google (single page)
2012/01/24: Much Improved Pebble v2 Aiko Demo Code (single page)
2012/01/23: LiquidCrystal driver support LCD3Wire hardware (pebble and others) (single page)
2011/12/12: GCC-AVR-4.5.3-2 Breaks Arduino NewSoftSerial (single page)
2011/05/12: Putting my Mobsendat Board to work to review my Rematee Bumper Belts (single page)
2011/05/11: Reducing Xbee Power Consumption on my Mobsendat Board (single page)
2011/05/06: PC/Breadboard Xbee Adapters: Sparkfun and Adafruit (single page)
2011/01/20: Mobsendat Arduino board from Arduino Miniconf 2011 (single page)
2011/01/19: Pebble Shield from Arduino Miniconf 2010 (single page)

More pages: June 2024 August 2023 June 2023 May 2023 April 2023 March 2022 January 2022 January 2021 December 2020 March 2020 January 2020 May 2019 April 2019 March 2019 January 2019 July 2018 May 2018 April 2018 January 2018 June 2017 April 2017 January 2017 February 2016 January 2015 September 2013 January 2012 December 2011 May 2011 January 2011

2021/01/23 Hacking 2 LCA/Linux.conf.au SAO Badges, Micropython and Double SPI Quad Screen C++ One

π 2021-01-23 01:01 in Arduino, Linux

The LCA organizers were nice enough to send me a couple of badges for the LCA 2021 virtual conf (virtual because of covid). It was a chance to try micropython. That part was interesting, but the regular ESP32 wasn't the best chip for micropython, installing new version of the code and testing it had too much overhead compared to the newer S2/S3 chips that are supported by adafruit's micropython fork where it's much quicker to install new code and test it:

I hacked the capacitive touch SAO penguins to add obvious missing stuff :)

The 2nd board, I couldn't help but put a hole in it and install SPI screens:

started with one screen

then got the 2 original I2C screens to display blinking eyes and worked on the SPI screen

SPI is a bus that allows multiple devices, so I added 2 screens

getting the Arduino_GFX lib to support both screens was a bit challenging, but got it working

And here is the last result with everything working and running 5 different demos on 4 screens:

Please go [this page: FastLED_ArduinoGFX::TFT on top of Framebuffer::GFX for SPI TFTs like SSD1331 or ILI9341] for details on how this was built and how to use my TFT library with multiple TFTs|/perso/arduino/post_2022-01-02_FastLED_ArduinoGFX_TFT-on-top-of-Framebuffer_GFX-for-SPI-TFTs-like-SSD1331-or-ILI9341.html]: https://marc.merlins.org/perso/arduino/post_2022-01-02_FastLED_ArduinoGFX_TFT-on-top-of-Framebuffer_GFX-for-SPI-TFTs-like-SSD1331-or-ILI9341.html

See more images for Hacking 2 LCA/Linux.conf.au SAO Badges, Micropython and Double SPI Quad Screen C++ One

2021/01/23 Linux.conf.au 2021 LED Talk

π 2021-01-23 01:01 in Arduino, Linux

Found this talk I gave during covid in January 2021 for Linux.conf.au on my work with LEDs over the years, and how to use my recent libraries for 2D code that can run on many different backends.

This video has the badge I built for that conference, but never got to wear:

More details here: https://marc.merlins.org/perso/arduino/post_2022-01-02_FastLED_ArduinoGFX_TFT-on-top-of-Framebuffer_GFX-for-SPI-TFTs-like-SSD1331-or-ILI9341.html

More pages: June 2024 August 2023 June 2023 May 2023 April 2023 March 2022 January 2022 January 2021 December 2020 March 2020 January 2020 May 2019 April 2019 March 2019 January 2019 July 2018 May 2018 April 2018 January 2018 June 2017 April 2017 January 2017 February 2016 January 2015 September 2013 January 2012 December 2011 May 2011 January 2011