Gopher Badge

TinyGo powered badge in the shape of your favorite burrowing rodent, the mighty Go Gopher.

https://gopherbadge.com

How to install

• Install TinyGo using the instructions from https://tinygo.org

• Clone this repo

• Change directories into the directory with the repo

• Connect your Gopherbadge to your computer using a USB cable

• Run this command to compile and flash the code to your Gopher badge:

If you are running Mac or Linux, or have make installed you can run the following:

make flash

otherwise run tinygo directly

tinygo flash -target gopher-badge .

Note: if you get a permision denied error; please, consult this page for possible solution. You many need to restart the computer; afterward to get the group to stick.

• To display a conference logo on your badge, use one of the following targets (depending on GC for Europe, Ireland, UK, or US):

make flash-gopherconeu
make flash-gopherconie
make flash-gopherconuk
make flash-gopherconus

• To customize the Gobadge with your own name and information, use the NAME, TITLEA1, TITLEA2, MARQUEETOP, MARQUEEMIDDLE, MARQUEEBOTTOM, TITLEB1, TITLEB2 and QRTEXT variables like this:

make flash-gopherconeu NAME="@_CONEJO" TITLEA1="Go compiler" TITLEA2="small places"

Add an new logo

• Create an image with a 320x240 pixels size, copy it into cmd/assets folder.
  For the moment only jpeg images are supported.
• In cmd/main.go add the path to your file here

const (
tinygoLogo         = "./cmd/assets/tinygo.jpg"
purpleHardwareLogo = "./cmd/assets/purpleHardware.jpg"
gopherconEU        = "./cmd/assets/gopherconeu.jpg"
gopherconIE        = "./cmd/assets/gopherconie.jpg"
gopherconUK        = "./cmd/assets/gopherconuk.jpg"
gopherconUS        = "./cmd/assets/gopherconus.jpg"
wasmio             = "./cmd/assets/wasmio.jpg"
)

• Add the corresponding flag to the conf map:

func confs() map[string]string {
    return map[string]string{
        "tinygo":      tinygoLogo,
        "purple":      purpleHardwareLogo,
        "gopherconeu": gopherconEU,
        "gopherconie": gopherconIE,
        "gopherconuk": gopherconUK,
        "gopherconus": gopherconUS,
        "wasmio":      wasmio,
    }
}

Add a new target to the Makefile:

flash-yourconf:
	go run cmd/main.go -conf=flagLogo
	tinygo flash -target gopher-badge .

You can run:

make flash-yourconf

It will store the data in logo.bin file that will be embedded into the code.

//go:embed logo.bin
var badgeLogo string

After the image has been generated, the make command will flash it to the board.

👏 Congratulations! It is now your own customized Gopher Badge.

Not powering up with battery connected

If your battery is connected and switching your badge to ON doesn't power it up, disconnect your battery, switch to ON and connect your battery again. If it doesn't power up, then check the battery charge.