GoBadge

TinyGo powered badge using the Adafruit Pybadge hardware.

https://www.adafruit.com/product/4200

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 Pybadge to your computer using a USB cable

• Make sure to turn on the badge, flip the switch at the top of the board next to select to the on position. The screen should light up with a sign way display.

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

make flash

or

tinygo flash -target pybadge .

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, UK, or US):

make flash-gceu
make flash-gcuk
make flash-gcus

• To customize the Gobadge with your own name and information, use the NAME, TITLE1, and TITLE2 variables like this:

make flash-gcus NAME="@TinyGolang" TITLE1="Go compiler" TITLE2="small places"

Add an new logo

• Create an image with a 160x128 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 (
gopherconEU22Logo = "./cmd/assets/gopherconeu-2022.jpg"
gopherconUK22Logo = "./cmd/assets/gopherconuk-2022.jpg"
gopherconUS22Logo = "./cmd/assets/gopherconus-2022.jpg"
yourPathLogoHere = "./your/path/to/the/logo"
)

• Add the corresponding flag to the conf map:

func confs() map[string]string {
	return map[string]string{
		"gceu22"    : gopherconEU22Logo,
		"gcuk22"    : gopherconUK22Logo,
		"gcus22"    : gopherconUS22Logo,
		"flagLogo"  : yourPathLogoHere,
	}
}

Add a new target to the Makefile:

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

You can run:

make flash-yourconf

It will use cmd/logos/logo-template.txt to generate the image into a []color.RGBA. Then it is stored in variable in logo.go file.

package main

import "image/color"

var logoRGBA = []color.RGBA{ {255, 255, 255} }

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

👏 Congratulations! It is now a GoBadge.