“Lights Out” game made with Adafruit TRELLIS!

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“Lights Out” game made with Adafruit TRELLIS by Tony! – here a bit about the Lights Out (game) @ Wikipedia.

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Lights Out is an electronic game, released by Tiger Toys in 1995. The game consists of a 5 by 5 grid of lights. When the game starts, a random number or a stored pattern of these lights is switched on. Pressing any of the lights will toggle it and the four adjacent lights. The goal of the puzzle is to switch all the lights off, preferably in as few button presses as possible.


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NEW PRODUCT – Adafruit Trellis Monochrome Driver PCB for 4×4 Keypad & 3mm LEDs. This PCB is specially made to match the Adafruit 4×4 elastomer keypad. Each Trellis PCB has 4×4 pads and 4×4 matching spots for 3mm LEDs. The circuitry on-board handles the background key-presses and LED lighting for the 4×4 tile. However, it does not have any microcontroller or other ‘brains’ – an Arduino (or similar microcontroller) is required to control the Trellis to read the keypress data and let it know when to light up LEDs as desired.

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Each tile has an I2C-controlled LED sequencer and keypad reader already on it. The chip can control all 16 LEDs individually, turning them on or off. It cannot do grayscale or dimming. The same chip also reads any keypresses made with the rubber keypad. The connections are ‘diode multiplexed’ so you do not have to worry about “ghosting” when pressing multiple keys, each key is uniquely addressed.

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The tiles have 3 address jumpers. You can tile up to 8 PCBs together (for a total of 4×32 or 16×8=128 buttons/leds) on a single I2C bus, as long as each one has a unique address. All the tiles connect by the edges with solder, and share the same power, ground, interrupt, and i2c clock/data pins. So, you can easily set up to 128 LEDs and read up to 128 buttons using only 2 I2C wires! The tiles can be arranged in any configuration they want as long as each tile is connected to another with the 5 edge-fingers.

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Each LED is multiplexed with a constant-current driver, so you can mix and match any colors you like. You don’t need it to be all blue, all red, etc. Mix it up! Any 3mm LED can be used, although we find that diffused LEDs with 250mcd+ brightness look best.

This item is just for the Trellis driver PCB assembly: LEDs and buttons not included. You’ll probably want to pick up a matching button pad and also some 3mm diffused LEDs (we suggest red, blue or white which look best). Some soldering is required to put the LEDs into the PCB, and then attach wires that go from each Trellis to an Arduino microcontroller (or whatever microcontroller you prefer)

We have an Arduino library & example code on github. Tutorial coming soon!

In stock and shipping!


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