robertcedwards

http://howtomechatronics.com/tutorials/arduino/how-to-control-stepper-motor-with-a4988-driver-and-arduino/

robertcedwards

python -m SimpleHTTPServer <port>

robertcedwards

// (*) All in the spirit of open-source and open-hardware
// Janost 2016 Sweden
// The Tiny-TS Touch Synthesizer
// https://janostman.wordpress.com/the-tiny-ts-diy-touch-synthesizer/

// Copyright 2016 DSP Synthesizers Sweden.
//
// Author: Jan Ostman
//
// This program is free software: you can redistribute it and/or modify

robertcedwards

#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>

// GUItool: begin automatically generated code
AudioInputI2S            i2s2;           //xy=56.142845153808594,137
AudioEffectFade          fade1;          //xy=249,28
AudioEffectDelay         delay1;         //xy=248,324

robertcedwards

 current_SampleRate = current_SampleRate / 2; // half the sample rate each time
    char c[5];
    String str;
    str = String(current_SampleRate);
    str.toCharArray(c, 5);
    u8x8.draw2x2String(0, 5, c);
    u8x8.drawString(8, 5, "Hz");

robertcedwards

FMI:
The audio board uses the following pins.
 6 - MEMCS
 7 - MOSI
 9 - BCLK
10 - SDCS
11 - MCLK
12 - MISO
13 - RX
14 - SCLK

robertcedwards

#include <FastLED.h>
#define NUM_LEDS 10
#define LED 13  //Debug LED

#define DATA_PIN 5      // Green
#define CLOCK_PIN 6     // Blue
CRGB leds[NUM_LEDS];

int ledPin = 13;

robertcedwards

#include <FastLED.h>
#define NUM_LEDS 14
#define DATA_PIN 5      // Green
#define CLOCK_PIN 6     // Blue

CRGB leds[NUM_LEDS];

void OnProgramChange(byte channel, byte program) {
  delay(500);
  if (usbMIDI.getChannel() == 1 && usbMIDI.getData1() == 8) // MIDI CC 8, Channel 1

robertcedwards

Option 2: Change npm's default directory to another directory

There are times when you do not want to change ownership of the default directory that npm uses (i.e. /usr) as this could cause some problems, for example if you are sharing the system with other users.

Instead, you can configure npm to use a different directory altogether. In our case, this will be a hidden directory in our home folder.

Make a directory for global installations:

mkdir ~/.npm-global Configure npm to use the new directory path:

robertcedwards

In the terminal, do this:

defaults write com.apple.finder CreateDesktop -bool false && killall Finder
After this, there'll be nothing on your Desktop (but still in ~/Desktop, i.e. your Desktop Folder). It'll look like this:

Clean Desktop

Beautiful, isn't it? If you want to change it back:

defaults write com.apple.finder CreateDesktop -bool true && killall Finder