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README.md

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Wiring

  • Button Up: NC - GND; NO - R180* - 5V; C - D2
  • Button Down: NC - GND; NO - R820** - 5V; C - D3
  • Button Left: NC - GND; NO - R820** - 5V; C - D4
  • Button Right: NC - GND; NO - R820** - 5V; C - D5
  • Button Go: NC - GND; NO - R820** - 5V; C - D6
    (*) faulty button, need stronger pull-up
    (**) common R820 rail
  • Matrix 64RGB: V+ - 5V; V- - GND; V- - 220uF - V+; In - R330 - D7
  • Face2 input: GND -reeds - D8
  • Final LED: GND -LED - R - D9

Algo

Program a path up to 8 steps (correct one is 8 steps)

  • Init mode: black
    • hidden buttons commands to set brightness (stored in eeprom) and to start game
    • cycle demo modes + black with LEFT+GO. Prevent UP/DOWN on black screen
    • demos: rainbow, heartbeat, labyrinth explorer, bonfire
  • Programming mode when input grounded (with reeds from face 2)
    • Hidden reset: maintain LEFT then press GO
    • START Led blinking green with fading
    • Bar Led 1 blinking blue (edition cursor)
    • When moves are programmed, Bar Led turns solid and next one blinking
    • Extra moves above 8 are ignored
    • GO without programmed move: ignored
    • Timeout reset of 10 min of programming mode
  • Play mode when GO pressed (and moves programmed)
    • Path Led turns solid, follows moves progressively with smooth fading behind, old path positions stay dimmer
    • Wall: Path becomes blinking red, wrong move in bar becomes red too, and all next moves
    • Wrong end: path blinking red, bar stays blue (no single wrong move to point out)
    • Partial path: path blinking red, next missing move becomes red
  • Success mode:
    • Turn on extra Led
    • Animate correct path
    • Rainbow effect after 4 s
    • GO: reset
    • Timeout reset of 10 min
  • Fail mode:
    • blink path in red a few times then move to programming mode after 3 s

Hidden buttons commands

During init phase:

  • maintain UP then press GO => brightness up (and store in eeprom)
  • maintain DOWN then press GO => brightness down (and store in eeprom)
  • maintain UP+RIGHT then press GO => bypass waiting for previous game
  • maintain LEFT then press GO => cycle through demos

During programmation:

  • maintain LEFT then press GO => reset

Remarks

Consumption:

  • rainbow: 80mA at smallest intensity, 1000mA(!) at highest intensity.

UP button faulty, very strange, kind of 1-10kohms pull-down (between center and NO), I've put a strong external pull-up of 180 ohms.

Added extra pull-up rail on the other buttons just in case, with 820 ohms.

No pull-up on the start input so far (D8)