Marc's Public Blog - Arduino Hacking

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Table of Content for arduino:

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)
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)
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: August 2023 June 2023 May 2023 March 2022 January 2022 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

2011/01/20 Mobsendat Arduino board from Arduino Miniconf 2011

π 2011-01-20 01:01 in Arduino

After the last linux.conf.au, and my going to the arduino miniconf, I got (voluntarily I guess :) conned into learning about a new field: arduino. The learning curve was a bit steep since I started with the second miniconf which featured a pretty sweet board, the mobsendat one of the volunteers had just designed.
Mobsendat (mobile sensor data) offers pretty good IO that's useful to log to its built in sdcard: a DS18B20 1-wire temp sensor, a barometer (with 2nd temperature reading), a 3 axis accelerometer, and connectivity for a GPS, a 433Mhz radio chip, and a Zigbee chip, all this for barely over $100. It was designed to be put in rocket bodies to record the flights, but I figured I'd find other uses for it :)

I got to solder the whole thing during the miniconf:

all done

Putting aside some problems due to a short in my board that came from a pre-soldered chip (not my fault :) ), it worked great. I was even able to hack in a dirty mod to let me unplug the GPS when I don't need it

Programming with arduino was reasonably easy. I haven't done much work on that specific board yet, but I have on the other one (next post).

See more images for Mobsendat Arduino board from Arduino Miniconf 2011

2011/01/19 Pebble Shield from Arduino Miniconf 2010

π 2011-01-19 01:01 in Arduino

I missed the arduino miniconf in 2010, but I was able to buy the pebble shield from a former participant, along with an arduino mega board. This board was a bit better for me to first learn on than the mobsendat because it had more interactive I/O to play with (potentiometer, LDR, LEDs, LCD display, and more).

This gave me a chance to learn the Aiko framework from Andy Gelme, which allows for registering event handlers that get called at a specified interval. I ended up writing some handlers that were missing, like a button handler that calculates which combination of buttons is pressed from the combined resistance generated by the 3 buttons. I used this to tell the board at what frequency to flash an led based on potentiometer or LDR light input.

slightly improved version with LEDs connected to the relays

I have a video showing this live:

This was a good way to learn how to play with arduino and learn programming, as well as being a test platform for the Zigbee chips I bought. I'll get a chance to do some more serious work on my mobsendat after that.

See more images for Pebble Shield from Arduino Miniconf 2010

More pages: August 2023 June 2023 May 2023 March 2022 January 2022 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