pmledctrlr

Arduino Pro Mini LED Controller

I needed a small LED controller for lighting up a project. I designed this to have a simple single button configuration interface.

/*
 *  WS2812b LED Controller with single button interface
 *
 *  Hold button for 1000ms to cycle through states
 *  Onboard LED blinks to indicate selected state
 *
 *  State 1: LED Effect
 *      click           = Next LED Effect
 *      double_click    = Previous LED Effect
 *
 *  State 2: Brightness
 *      click           = Increase Brightness
 *      double_click    = Decrease Brightness
 *
 *  State 3: Speed
 *      click           = Increase Speed
 *      double_click    = Decrease Speed
 *
 *  State 4: Color
 *      click           = Increment Color + 20
 *      double_click    = Decrement Color - 1
 *
 *  State 5: Length Add
 *      click           = Add 1 LED
 *      double_click    = Add 10 LEDs
 *
 *  State 6: Length Delete
 *      click           = Delete 1 LED
 *      double_click    = Delete 10 LED
 *
 *  Hold button for 5000ms to save settings to EEPROM
 */

Parts List

Qty	Part
1	Arduino Pro Mini 5V 16Mhz
1	WS2812b LED Strip
2	18650 Battery
2	18650 Single Battery Holder with Wire Leads
1	6x6x5MM 4PIN G90 Tactile Tact Push Button Micro Switch (Configuration Switch)
1	8.5mm x 8.5mm Tactile Power Micro Switch Self Lock On/Off (Power Switch)
1	1000uf 10v Electrolytic Capacitor
1	470 ohm 1/4w metal film resistor
1	100k ohm 1/4w metal film resistor

Wiring

(To Do)

I used the really awesome Adafruit NeoPixel library, WS2812FX and OneButton libraries with a few adjustments.

Effects

• Static - No blinking. Just plain old static light.
• Blink - Normal blinking. 50% on/off time.
• Breath - Does the "standby-breathing" of well known i-Devices. Fixed Speed.
• Color Wipe - Lights all LEDs after each other up. Then turns them in that order off. Repeat.
• Color Wipe Random - Turns all LEDs after each other to a random color. Then starts over with another color.
• Random Color - Lights all LEDs in one random color up. Then switches them to the next random color.
• Single Dynamic - Lights every LED in a random color. Changes one random LED after the other to another random color.
• Multi Dynamic - Lights every LED in a random color. Changes all LED at the same time to new random colors.
• Rainbow - Cycles all LEDs at once through a rainbow.
• Rainbow Cycle - Cycles a rainbow over the entire string of LEDs.
• Scan - Runs a single pixel back and forth.
• Dual Scan - Runs two pixel back and forth in opposite directions.
• Fade - Fades the LEDs on and (almost) off again.
• Theater Chase - Theatre-style crawling lights. Inspired by the Adafruit examples.
• Theater Chase Rainbow - Theatre-style crawling lights with rainbow effect. Inspired by the Adafruit examples.
• Running Lights - Running lights effect with smooth sine transition.
• Twinkle - Blink several LEDs on, reset, repeat.
• Twinkle Random - Blink several LEDs in random colors on, reset, repeat.
• Twinkle Fade - Blink several LEDs on, fading out.
• Twinkle Fade Random - Blink several LEDs in random colors on, fading out.
• Sparkle - Blinks one LED at a time.
• Flash Sparkle - Lights all LEDs in the selected color. Flashes single white pixels randomly.
• Hyper Sparkle - Like flash sparkle. With more flash.
• Strobe - Classic Strobe effect.
• Strobe Rainbow - Classic Strobe effect. Cycling through the rainbow.
• Multi Strobe - Strobe effect with different strobe count and pause, controlled by speed setting.
• Blink Rainbow - Classic Blink effect. Cycling through the rainbow.
• Chase White - Color running on white.
• Chase Color - White running on color.
• Chase Random - White running followed by random color.
• Chase Rainbow - White running on rainbow.
• Chase Flash - White flashes running on color.
• Chase Flash Random - White flashes running, followed by random color.
• Chase Rainbow White - Rainbow running on white.
• Chase Blackout - Black running on color.
• Chase Blackout Rainbow - Black running on rainbow.
• Color Sweep Random - Random color introduced alternating from start and end of strip.
• Running Color - Alternating color/white pixels running.
• Running Red Blue - Alternating red/blue pixels running.
• Running Random - Random colored pixels running.
• Larson Scanner - K.I.T.T.
• Comet - Firing comets from one end.
• Fireworks - Firework sparks.
• Fireworks Random - Random colored firework sparks.
• Merry Christmas - Alternating green/red pixels running.
• Fire Flicker - Fire flickering effect. Like in harsh wind.
• Fire Flicker (soft) - Fire flickering effect. Runs slower/softer.
• Fire Flicker (intense) - Fire flickering effect. More range of color.
• Dual Color Wipe In/Out - Light from edges in to middle, then turn off in reverse.
• Dual Color Wipe In/In - Light from edges in to middle, then turn off in same order.
• Dual Color Wipe Out/Out - Light from middle to edges, then turn off in same order.
• Dual Color Wipe Out/In - Light from middle to edges, then turn off in reverse.
• Circus Combustus - Alternating white/red/black pixels running.