Author Archives: dargs

TinyPico & MicroPython !

Posted on July 31, 2019

Received my TinyPico boards I backed on Crowd Supply, and making some notes based on Seon’s Youtube video “MicroPython #1 – Lets Get Started”. Download from: http://micropython.org/download#esp32 Using OSX, Terminal ls /dev/tty.* /dev/tty.SLAB_USBtoUART esptool.py –chip esp32 –port /dev/tty.SLAB_USBtoUART erase_flash esptool.py –chip … Continue reading →

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MAX7219 Clock countdown for artworks

Posted on March 25, 2018

  Using a pre-loved Telechron 6-digit 7-segment clock, controlled by a MAX7219 IC…   On power up.. clock to display  00 00 00 if Digital I/O xx is HIGH (pulled to 5v) (requires external pull-up-resistor) counter = 1 hour.  ** … Continue reading →

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Teensy Hardware Joystick & Keyboard emulator

Posted on January 1, 2018

Testing if Teensy can be a Joystick and a Keyboard.. as some game emulators expect joystick commands as default, but require keyboard keys also. Handy in installation environment.   /* Basic USB Joystick Example   GPIO 0 Keyboard – F1 … Continue reading →

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USB Remote monitor

Posted on December 28, 2017

Web enabled (ESP32 ? PoE Shield ?) USB Tester OLED https://www.tindie.com/products/FriedCircuits/usb-tester-20-bundle/ https://github.com/FriedCircuits/FC-USB-Tester-OLED-Backpack/blob/master/USB_Tester_v1/Pre_JSON/USB_Tester_OLED/USB_Tester_OLED.ino   Monitors Voltage and Current for installations (Keyboards, Mice, Game Controllers). Able to report via web interface / SNMP under voltage / disconnects    

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RS232 Serial debugger

Posted on December 25, 2017

  Passive split: (No latency, no re-transmitting packets…. Receive Only, can’t tell which device is sending) https://www.compuphase.com/electronics/rs232split.htm .. Use 2 splits, into 2 MAX232s into 2 Serial RX on Teensy.     Serial In (From Control System) MAX232 -> TTL … Continue reading →

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Brightsign media player Relay & Button control PCB

Posted on December 3, 2017

DB15 IDC Connector https://www.digikey.com.au/product-detail/en/cnc-tech/410M0-15-1-00/1175-1813-ND/6024195   15cm 16 way ribbon cable https://www.digikey.com.au/product-detail/en/assmann-wsw-components/AWG28-16-G-300/AE16G-5-ND/686332   16 Pin 8×2 Header https://www.digikey.com.au/product-detail/en/on-shore-technology-inc/302-S161/ED10523-ND/2794234   Jumper select ? for Relay vs Button (GPI vs GPO) or have 4 relays, 4 buttons? 3 way Screw Terminals (Relays C, … Continue reading →

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Prey Q&A with Raphael Colantonio

Posted on April 27, 2017

https://www.acmi.net.au/events/prey-raphael-colantonio/

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VDMX PIR Looping vid control trigger

Posted on March 25, 2017

Debug: LED ON = Digital pins pulled high (internal pullup) = Motion Sensed (Or Faulty PIR / Wiring)   /* PIR Motion Sensor to MIDI Trigger w timer 25/3/2017 Dargstronix Hardware: 1x PIR Sensor (4 pins to sensor = 12v, … Continue reading →

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Arduino DMX – MP3 Receiver

Posted on August 28, 2016

A stream of consciousness write up on building a DMX- audio trigger device. So it’s been 5 years or so since I was last playing around with DMX receiving (to control WS2801 led strip, and RGB 12v strips), and the … Continue reading →

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Getting started with the Gadget Factory Papilio DUO – FPGA dev board

Posted on March 9, 2016

Finally learning some FPGA geeky goodness! Back in 2014, I supported this campaign – https://www.kickstarter.com/projects/13588168/papilio-duo-drag-and-drop-fpga-circuit-lab-for-mak And received the board 12 months ago, but haven’t had a play with it until now… First things first..  check for a missing jumper, mentioned in … Continue reading →

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