Table of Contents

• DESCRIPTION
• PROCESS
  • Install TinyGo
  • ChromeOS
  • Go: Blinky

DESCRIPTION ¶

Flash a Go program that:

• blinks an LED on a Raspberry Pico
• from a ChromeOS LXD container
• using tinygo

PROCESS ¶

Install TinyGo ¶

See the Quick Install.

ChromeOS ¶

• pico: press and hold the BOOTSEL button

• pico: connect the pico to the Chromebook

• pico: release the button

• chromeos: open the Files application

• chromeos: verify the RPI-RP2 disk is mounted

• chromeos: right click the mount and share with Linux: /mnt/chromeos/removable/RPI-RP2/

Go: Blinky ¶

Blink the LED using the example code:

• create the directory

mkdir blinky
go mod init blinky

• main.go

package main

import (
	"machine"
	"time"
)

func main() {
	led := machine.LED
	led.Configure(machine.PinConfig{Mode: machine.PinOutput})
	for {
		led.Low()
		time.Sleep(time.Millisecond * 500)

		led.High()
		time.Sleep(time.Millisecond * 500)
	}
}

• build and place the compiled file on the pico

tinygo build -o /mnt/chromeos/removable/RPI-RP2/firmware.uf2 -target=pico

• the pico will reboot, umounting the disk

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