{
 "version": 2,
 "name": "Police Lights",
 "board": {
  "rows": 9,
  "cols": 13
 },
 "cuts": [
  "2,6",
  "3,6",
  "4,6",
  "5,6"
 ],
 "ics": [
  {
   "id": "ic1",
   "ref": "IC1",
   "part": "NE555",
   "pins": 8,
   "pin1": [
    2,
    5
   ],
   "span": 3
  }
 ],
 "parts": [
  {
   "id": "r1",
   "kind": "res",
   "ref": "R1",
   "value": "10k",
   "pins": [
    [
     1,
     10
    ],
    [
     3,
     10
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r2",
   "kind": "res",
   "ref": "R2",
   "value": "100k",
   "pins": [
    [
     3,
     11
    ],
    [
     4,
     11
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r3",
   "kind": "res",
   "ref": "R3",
   "value": "470",
   "pins": [
    [
     4,
     3
    ],
    [
     8,
     3
    ]
   ]
  },
  {
   "id": "r4",
   "kind": "res",
   "ref": "R4",
   "value": "470",
   "pins": [
    [
     0,
     4
    ],
    [
     4,
     4
    ]
   ]
  },
  {
   "id": "c1",
   "kind": "ecap",
   "ref": "C1",
   "value": "2u2",
   "pins": [
    [
     6,
     10
    ],
    [
     7,
     10
    ]
   ],
   "polarized": true
  },
  {
   "id": "c2",
   "kind": "cap",
   "ref": "C2",
   "value": "10n",
   "pins": [
    [
     5,
     12
    ],
    [
     7,
     12
    ]
   ]
  },
  {
   "id": "c3",
   "kind": "ecap",
   "ref": "C3",
   "value": "100u",
   "pins": [
    [
     1,
     2
    ],
    [
     2,
     2
    ]
   ],
   "polarized": true
  },
  {
   "id": "d1",
   "kind": "diode",
   "ref": "D1",
   "value": "red",
   "pins": [
    [
     8,
     4
    ],
    [
     7,
     4
    ]
   ],
   "device": "LED",
   "polarized": true
  },
  {
   "id": "d2",
   "kind": "diode",
   "ref": "D2",
   "value": "blue",
   "pins": [
    [
     1,
     12
    ],
    [
     0,
     12
    ]
   ],
   "device": "LED",
   "polarized": true
  },
  {
   "id": "j1",
   "kind": "link",
   "ref": "J1",
   "value": "",
   "pins": [
    [
     1,
     0
    ],
    [
     5,
     0
    ]
   ]
  },
  {
   "id": "j2",
   "kind": "link",
   "ref": "J2",
   "value": "",
   "pins": [
    [
     2,
     1
    ],
    [
     7,
     1
    ]
   ]
  },
  {
   "id": "j3",
   "kind": "link",
   "ref": "J3",
   "value": "",
   "pins": [
    [
     3,
     2
    ],
    [
     6,
     2
    ]
   ]
  },
  {
   "id": "j4",
   "kind": "link",
   "ref": "J4",
   "value": "",
   "pins": [
    [
     1,
     9
    ],
    [
     2,
     9
    ]
   ]
  },
  {
   "id": "j5",
   "kind": "link",
   "ref": "J5",
   "value": "",
   "pins": [
    [
     4,
     9
    ],
    [
     6,
     9
    ]
   ]
  }
 ],
 "pads": [
  {
   "id": "p1",
   "label": "+9V",
   "at": [
    1,
    11
   ],
   "to": "9V battery snap +, through the power switch",
   "parts": [
    {
     "id": "SW1",
     "kind": "toggle",
     "lug": "C",
     "value": "SPST",
     "role": "power"
    }
   ]
  },
  {
   "id": "p2",
   "label": "GND",
   "at": [
    7,
    11
   ],
   "to": "9V battery snap -",
   "parts": [
    {
     "id": "BT1",
     "kind": "batt",
     "lug": "-",
     "value": "9 V"
    }
   ]
  }
 ],
 "netlist": "# Police Lights - a 555 wig-wag, red and blue\n# One 555 flips red and blue back and forth. Pin 3 high lights red\n# (pin 3 through R3 and red to ground); pin 3 low lights blue (+9V through blue and R4 into pin 3).\n# They can never be on together, so it is a clean wig-wag with no extra chips.\n# About 3 flips a second. Slower: bigger C1. Faster: smaller C1.\n# Speed knob: a 100k pot in series with R2.\n# Brighter LEDs: drop R3 and R4 to 330.\n# Use plain LEDs, not self-flashing ones - those run their own clocks\n# and drift out of step instead of taking turns.\n# NE555 or a CMOS 7555 / TLC555 both work.\n\nV+:   @+9V IC1.8 IC1.4 R1.A C3.A D2.A\nGND:  @GND IC1.1 C1.B C2.B C3.B D1.B\nDIS:  IC1.7 R1.B R2.A\nTHR:  IC1.2 IC1.6 R2.B C1.A\nCV:   IC1.5 C2.A\nOUT:  IC1.3 R3.A R4.B\nRED:  R3.B D1.A\nBLUE: D2.B R4.A\n",
 "offboard": [
  "BT1.+ - SW1.1"
 ]
}