Cabinet
Take a look at my other DIY projects as well.
This is a first concept of this post, updates are pending
I started off with this basic tutorial from KamuiCosplay.
Hexagons
This cabinet consists of 16 hexagons with sides of 320mm and a depth of 320mm, made of 18mm plywood.
Arduino
Getting started
- Download the IDE from the Arduino website and install.
- Go to Sketch -> Include Library -> Manage Librariesand search for 'neopixel'.
- Install Adafruit NeoPixel library.
- Go to Tools -> Board and select 'Arduino Uno'.
- Go to Tools -> Programmer and select 'Arduino as ISP'.
- The port probably is already selected.
I have Arduino 1.8.19 installed, above terms may vary depending on your version.
My program is based on the strandtest included in this library: Open File -> Examples -> Adafruit NeoPixel -> strandtest The original source is also included in this repository.
Below are some comments that were included in that file:
Neopixel best practices
- Add 1000 uF CAPACITOR between the + and - connections of the NeoPixel strip.
- Minimize wiring length between microcontroller board and first pixel.
- The DATA-IN of the NeoPixel strip should pass through a 300-500 Ω RESISTOR.
- Avoid connecting NeoPixels on a live circuit. If you must, always connect GROUND (-) first, then +, then data.
A Dutch manual to calculate the resistance based on the color coding.
For a polarized electrolytic capacitor as seen here, the negative (–) lead is usually indicated by a stripe and/or may be shorter than the + lead. Draw schemes like this withFritzing.
Another useful source is the Adafruit NeoPixel Überguide.
How many NeoPixels are attached to the Arduino?
LED_COUNT is defined by 16 hexagons times 108 LEDs, considering 60 LEDs/meter, that would mean a total of 1728 LEDs.
Declare our NeoPixel strip object
- Argument 1 = Number of pixels in NeoPixel strip
- Argument 2 = Arduino pin number (most are valid)
- Argument 3 = Pixel type flags, add together as needed: NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
Setup function runs once at startup
It is required to include strip.begin(); in this setup function. This can be used to turn all LEDs of initially and set a brightness. Other functions related to the strip can be found in the class reference.
Loop function runs repeatedly
In this function the animation functions can be called. The default ones included in the strandtest arecolorWipe(), theaterChase(), rainbow() andtheaterChaseRainbow(), you can find the documentation of these functions in the original strandtest.ino file. I added my own functions to it: FX_hexCircle(),FXcolorWipeMulti()
Remote
The light effects can be selected with a remote control, having a numpad and 4 arrows. However, I might be using the remote of my Dolby receiver, which has an unused numpad. Maybe I will be able to use the arrow buttons on that too. You may find some useful instructions in thisYoutube video.
The plan is to program each of those numbers with its own effect. Example:
- Each hexagon is turning on one by one
- Each hexagon starts circling around
- Everything is quite dim, but with a motion sensor a single hexagon can light up if I come close
- Equalizer
- Circle around 6 hexagons
- Light up certain hexagons (use arrows to pick which)
- All off, except when approached
- Ableton with Max4Live control
- TBD
- ...
Proximity sensors
Each hexagon contains a proximity sensor which can be used to light up a hexagon when something is grabbed from it. Because 16 of those sensors are needed, unfortunately an Arduino Uno is not sufficient, as it is impossible to connect that many things. That is why I included an Arduino Mega in the shopping list. This also gives me some extra memory capacity. The differences are visible in the table below:
The code I have so far
1#include <Adafruit_NeoPixel.h>
2#include <IRremote.hpp>
3
4#define LED_PIN 6
5#define RECV_PIN 10
6#define LED_COUNT 300
7#define HEXAGON_COUNT 20
8#define HEXAGON_LED_COUNT 108
9#define TIMEOUT 50
10
11#define C_PURPLE strip.Color( 92, 94, 220)
12#define C_RED strip.Color(255, 0, 0)
13#define C_YELLOW strip.Color(255, 255, 0)
14#define C_GREEN strip.Color( 0, 255, 0)
15#define C_CYAN strip.Color( 0, 255, 255)
16#define C_BLUE strip.Color( 0, 0, 255)
17#define C_MAGENTA strip.Color(255, 0, 255)
18
19// Stuff for remote
20int Program = 0;
21int maxProgram = 2;
22int Horizontal = 0;
23int Vertical = 0;
24int Brightness = 50;
25bool Active = false;
26
27// Declare our NeoPixel strip object:
28Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
29
30// Runs once at startup
31void setup() {
32 Serial.begin(9600);
33 Serial.println('Arduino is set up!');
34 IrReceiver.begin(RECV_PIN, true);
35
36 strip.begin();
37 show(); // Turn OFF all pixels
38 strip.setBrightness(50);
39}
40
41
42// Runs repeatedly
43void loop() {
44 if (IrReceiver.decode()) {
45 uint32_t myRawdata = IrReceiver.decodedIRData.decodedRawData;
46 // Serial.println(myRawdata, HEX);
47
48 RM_translate(myRawdata);
49 IrReceiver.resume();
50 }
51
52 FX_hexCircle(C_PURPLE, TIMEOUT);
53 FX_hexCircle(C_RED, TIMEOUT);
54 FX_hexCircle(C_YELLOW, TIMEOUT);
55 FX_hexCircle(C_GREEN, TIMEOUT);
56 FX_hexCircle(C_CYAN, TIMEOUT);
57 FX_hexCircle(C_BLUE, TIMEOUT);
58 FX_hexCircle(C_MAGENTA, TIMEOUT);
59
60 FX_colorWipeMulti(C_PURPLE, 10, TIMEOUT);
61 FX_colorWipeMulti(C_RED, 20, TIMEOUT);
62 FX_colorWipeMulti(C_YELLOW, 30, TIMEOUT);
63 FX_colorWipeMulti(C_GREEN, 40, TIMEOUT);
64 FX_colorWipeMulti(C_CYAN, 50, TIMEOUT);
65 FX_colorWipeMulti(C_BLUE, 60, TIMEOUT);
66 FX_colorWipeMulti(C_MAGENTA, 70, TIMEOUT);
67}
68
69void show() {
70 if (IrReceiver.isIdle()) {
71 strip.show();
72 }
73}
74
75void FX_hexCircle(uint32_t color, int wait) {
76 for (int j = 0; j < HEXAGON_LED_COUNT; j++) {
77 for (int i = 0; i < strip.numPixels(); i+=HEXAGON_LED_COUNT) {
78 strip.setPixelColor(i + j, color);
79 strip.setPixelColor(i + j -5, strip.Color(0, 0, 0));
80 }
81 show();
82 delay(wait);
83 }
84}
85
86void FX_colorWipe(uint32_t color, int wait) {
87 for (int i = 0; i < strip.numPixels(); i++) {
88 strip.setPixelColor(i, color);
89 show();
90 delay(wait);
91 }
92}
93
94void FX_colorWipeMulti(uint32_t color, int pixels, int wait) {
95 for (int i = 0; i < strip.numPixels(); i += pixels) {
96 for (int j = 0; j < pixels; j++) {
97 strip.setPixelColor(i + j, color);
98 }
99 show();
100 delay(wait);
101 }
102}
103
104void FX_rainbow(int wait) {
105 for (long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
106 strip.rainbow(firstPixelHue);
107 show();
108 delay(wait);
109 }
110}
111
112
113void RM_translate(uint32_t signal) {
114 // Pioneer Remote
115 // Stop signal: 66995CA3
116
117
118 switch(signal) {
119 case 0x5EA150AF:
120 Program = 1;
121 Serial.println("Each hexagon is turning on one by one");
122 Serial.println("- use < and > to control the color");
123 strip.clear();
124 Active = true;
125 break;
126
127 case 0x5DA250AF:
128 Program = 2;
129 Serial.println("Each hexagon starts circling around");
130 Serial.println("- use < and > to control the amount of lit LEDs");
131 Serial.println("- use UP and DOWN to control the speed");
132 strip.clear();
133 Active = true;
134 break;
135
136 case 0x5CA350AF:
137 Program = 3;
138 Serial.println("Each hexagon fils up");
139 Serial.println("- use UP and DOWN to control the speed");
140 strip.clear();
141 Active = true;
142 break;
143
144 case 0x5BA450AF:
145 Program = 4;
146 Serial.println("Everything is quite dim but with a motion sensor a single ");
147 Serial.println("hexagon can light up if I come close");
148 Serial.println("- use < and > to control the color");
149 strip.clear();
150 Active = true;
151 break;
152
153 case 0x5AA550AF:
154 Program = 5;
155 Serial.println("All off, except when approached");
156 Serial.println("- use < and > to control the color");
157 break;
158
159 case 0x59A650AF:
160 Program = 6;
161 Serial.println("Circle around 6 hexagons");
162 Serial.println("- use < and > to control the color");
163 Serial.println("- use UP and DOWN to control the speed");
164 strip.clear();
165 Active = true;
166 break;
167
168 case 0x58A750AF:
169 Program = 7;
170 Serial.println("Light up certain hexagons");
171 Serial.println("- use arrows to pick which");
172 strip.clear();
173 Active = true;
174 break;
175
176 case 0x57A850AF:
177 Program = 8;
178 Serial.println("Equalizer");
179 strip.clear();
180 Active = true;
181 break;
182
183 case 0x56A950AF:
184 Program = 9;
185 Serial.println("Ableton with Max4Live control");
186 strip.clear();
187 Active = true;
188 break;
189
190 case 0x5FA050AF:
191 Program = 0;
192 Serial.println("TBD");
193 strip.clear();
194 Active = true;
195 break;
196
197 case 0xDF250AF: // up
198 RM_move(0);
199 Serial.println("Vertical: " + Vertical);
200 strip.clear();
201 Active = true;
202 break;
203
204 case 0x9B6450AF: // right
205 RM_move(1);
206 Serial.println("Horizontal: " + Horizontal);
207 strip.clear();
208 Active = true;
209 break;
210
211 case 0xCF350AF: // down
212 RM_move(2);
213 Serial.println("Vertical: " + Vertical);
214 strip.clear();
215 Active = true;
216 break;
217
218 case 0x9C6350AF: // left
219 RM_move(3);
220 Serial.println("Horizontal: " + Horizontal);
221 strip.clear();
222 Active = true;
223 break;
224
225 case 0x10EF50AF: // enter
226 break;
227
228 case 0xF50A5AA5: // volume up
229 RM_brightness(1);
230 Serial.println("Brightness: " + Brightness);
231 break;
232
233 case 0xF40B5AA5: // volume down
234 RM_brightness(0);
235 Serial.println("Brightness: " + Brightness);
236 break;
237
238 case 0x1CE350AF: // disp
239 break;
240
241 case 0x1AE550AF: // clr
242 strip.clear();
243 Active = false;
244 break;
245
246 default: // Other button
247 break;
248 }
249}
250
251void RM_move(int direction) {
252 switch (direction) {
253 case 0:
254 if (Vertical < 100) Vertical += 10;
255 break;
256 case 1:
257 if (Horizontal < 100) Horizontal += 10;
258 break;
259 case 2:
260 if (Vertical > 0) Vertical -= 10;
261 break;
262 case 3:
263 if (Horizontal > 0) Horizontal -= 10;
264 break;
265 }
266}
267
268void RM_brightness(int direction) {
269 switch (direction) {
270 case 1:
271 if (Brightness < 250) Brightness += 25;
272 break;
273 case 0:
274 if (Brightness > 25) Brightness -= 25;
275 break;
276 }
277 strip.setBrightness(Brightness);
278}
279
| Arduino Micro | Arduino Uno | Arduino Mega | |
|---|---|---|---|
| Price | € 19,00 | € 20,50 | € 35,00 |
| Dimension | 45 * 18 mm | 68.6 * 53.4 mm | 101.5 * 53.3 mm |
| Processor | ATMega328P | ATMega32U4 | ATMega2560 |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz |
| Flash Memory | 32 kB | 32 kB | 256 kB |
| EEPROM | 1 kB | 1 kB | 4 kB |
| SRAM | 2.5 kB | 2 kB | 8 kB |
| Voltage Level | 5V | 5V | 5V |
| Digital I/O Pins | 20 | 14 | 54 |
| Digital I/O with PWM Pins | 7 | 6 | 15 |
| Analog Pins | 12 | 6 | 12 |
| USB Connectivity | Micro USB | USB-A | USB-A |
| Shield Compatibility | No | Yes | Yes |
Smartphone
Using RemoteXY you can create an app for your smartphone. However, I don't think I will be using this as it requires too much steps to open the app and control my lights. Watch this Youtube video for further instructions on that. I put a WiFi receiver in the shopping list regardless.
Ableton
For Ableton Live there is a Max4Live plugin to control the Arduino, I am not sure how to set that up yet and some additional hardware might be needed. So this part will remain on the wish list until further notice.
Shopping list
- 13xSolid wood glued panel pine 2350x300x18mm 21 320x320x18mm sections per slab € 24,75
- 1xWood glue € 9,39
- 1xWood finish € 31,29
- 1xArduino Mega 2560 R3 € 35,00
- 2x DuPont Jumper wire Male-Female 20cm 10 wires € 0,75
- 1x1000uF 25V Elektrolytic Capacitor € 0,25
- 6xWS2812B Digital 5050 RGB LED Strip - 300 LEDs 5m € 50,00
- 1xHeat shrink tubing 2:1 - Ø 14mm diameter - 50cm € 1,15
- 1x470Ω resistor € 0,05
- 2xMean Well Power Supply - 5V 26A - Switching Power Supply - RS-150-5 € 30,00
- 2xStandard 230V Power supply cable - 1.8m - Angled plug € 4,00
- 1xHeat shrink tubing Kit - Black € 4,00
- 1xBudget Soldering Station Kit - ZD-99 - 48W € 25,00
- 1xRotary Encoder Module € 1,50
- 1xIR sensor module with remote and battery - With IR LED € 3,00
- 16xObject Detection Sensor Module € 2,00
- 1xBreadboard 170 points - Black € 1,50
- 20xJST-SM 3p Compatible Extension Cable - 100cm € 2,50
- 1xESP8266 WiFi Module ESP-01 1MB € 5,00
- 1xSegment Display - 1 Character - Red
- 1xLCD Display 16 * 2 characters with white text and blue backlight
- LCD Displays
- Proximity sensor
Totals: € 891,38
Other Arduino projects
TODO
- Build the cabinet, cut up the LED strip in 16 pieces holding 108 LEDs each.
- Connect all to the Arduino and the power supply - determine how many power supplies are needed.
- Include programming for the IR-sensor and the remote
- Include programming for the object detection
- Tutorial for LCD usage
