KIT-14130 Datasheet KIT-14130 | P4-P6

One important feature missin

If you hadn’t noticed in the pin description, there was no mention of RX or

TX pins. This is because unfortunately the ATtiny84 doesn’t have a

hardware UART. The UART is used for serial communication, whether it’s

for programming, or printing messages to the serial window. You might be

thinking “But doesn’t the USB connector provide communication between

the ATtiny and computer?”, and you’re right; it does. To keep the

bootloader size as small as possible, the bootloader only allows for USB

programming. For serial debugging, you’ll need a USB cable and a USB-to-

Serial adapter, and Software Serial library to send messages to a

computer. You can learn more about serial communication here.

Hardware Assembly

To use your Roshamglo, all that’s needed is to solder in the battery clips.

To insert the battery clips, you’ll need to turn the board to the side with the

pictures of the batteries and push the battery clips into the holes. Make sure

that the metal tab on the ends are facing away from the center of the board.

Make sure the battery clips aren’t touching each other! To make sure they

won’t short against each other, make sure the clips sit flat against the circuit

board.

After the clips are installed, you can turn the board over and solder all of the

joints on the top side of the board. When they’re all soldered together, they

should look like this:

Installing the batteries are easy, but as you install the batteries, make sure

you insert the batteries in the same orientation as the silkscreen image

between each pair of battery clips. After the batteries are installed, you’re

all set! You can move the switch on the left side of the board to “ON”, and

you should see the red power LED come on.

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How to Use the Roshamglo

To use the Roshamglo, first make sure that the board is on. When you

move the power switch to “ON”, the red LED should illuminate.

How to Play

Playing the game is very straight forward, next to the 5-way switch are

three images that correspond to your three possible moves: rock, paper,

and scissors. To set your move as rock, you will push the switch to the left

towards the rock image. Paper and scissors are played the same way, but

this time towards their corresponding images. When you move the switch,

the green LED will flash quickly every time the IR LED sends a signal. Once

the LED starts to blink, you’ll want to point the USB connector towards your

opponent’s controller.

If you’ve pressed the button by mistake, you can press the switch in any

direction to cancel the move. Once you select your move though, the green

LED will blink for a few seconds. After both sides have received their

opponent’s move, the center LEDs will display one of the following:

• Solid red - lose

• Solid green - win

• Alternating red and green - tie

• Blinking red - see explanation below

• Fading - timeout. Try standing closer to your opponent and aiming

your USB connector at their USB connector

A blinking red LED could mean one of two things. One possibility is that you

have played against an opponent too many times. Each controller has a

unique ID and your Roshamglo will not function with the same opponent

after 15 rounds. We want the Roshamglo to start a conversation with

people around you, and the Roshamglo can be used to help break the ice.

So walk around and continue on your quest of total domination! Another

possibility is that the score saved to your controller is full. You can dump

your points by heading over to the scoreboard station.

Viewing and Uploading Your Score

You can view your score by closing the 5-way switch’s center switch (push

the switch straight down towards the top of the board). Each time the green

LED turns on, represents one point. The score is saved to a 8-bit register,

which means that the maximum score you can have saved is 255 points.

You can clear your score by uploading it to the scoreboard station. If the

LED is red, it means that your current saved score is 0.

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To upload your score, head over to the scoreboard station. With the board

powered on, insert the board to the station and move the 5-way switch to

the down position (towards the SparkFun Logo and lanyard clip). Just like

when you’re playing a game, the green LED will flash a few times. The

score will be successfully read when the LED changes to solid green. If the

LED is solid red, that means that it was not able to read the score.

Summary of the LED Indicator

If the center LED is fading on and off, it means you’re in standby mode. In

standby, the board will go into a deep sleep for two seconds, and then

wake up to fade LED on and off. Pressing the 5-way switch in any direction

will wake up the Roshamglo and perform the function attached to that

switch. There are three other modes that control the LED, those LED

patterns are described below.

Playing a game:

LED Color Meaning

Blinking Green Transmitting IR.

Solid Green You won!

Solid Red You lost.

Alternating Red and

Green

It's a tie!

Blinking Red Case 1: Played this person too many times.

Case 2: Saved score is too high. Upload score

to reset.

Checking your score:

LED Color Meaning

Blinking

Green

Each blink represents 1 point.

Red Your saved score is 0. Go find someone to play

against!

Uploading your score:

LED Color Meaning

Blinking

Green

Transmitting IR.

Solid Green Score uploaded successfully. You can now remove your

controller.

Red Unable to upload score.

Resources and Going Further

Now that you’ve successfully got your Roshamglo up and running, it’s time

to incorporate it into your own project! If you’d like to hack your Roshamglo,

you should check out the Hack Your Roshamglo Badge tutorial.

For more information, check out the resources below:

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P1-P3 P4-P6 P7-P7

KIT-14130

Mfr. #:

Buy KIT-14130

Manufacturer:

SparkFun

Description:

Development Boards & Kits - AVR Roshamglo Badge Kit

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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KIT-14130