120 lines
2.9 KiB
Markdown
120 lines
2.9 KiB
Markdown
# Digispark
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The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE the Digispark is a great way to jump into electronics, or perfect for when an Arduino is too big or too much.
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This package provides the Gobot adaptor for the [Digispark](http://digistump.com/products/1) ATTiny-based USB development board with the [Little Wire](http://littlewire.github.io/) protocol firmware installed.
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## How to Install
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This package requires `libusb`.
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### OSX
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To install `libusb` on OSX using Homebrew:
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```
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$ brew install libusb && brew install libusb-compat
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```
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### Ubuntu
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To install libusb on linux:
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```
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$ sudo apt-get install libusb-dev
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```
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Now you can install the package with
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```
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go get -d -u gobot.io/x/gobot/...
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```
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## How to Use
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```go
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package main
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import (
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"time"
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"gobot.io/x/gobot"
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"gobot.io/x/gobot/drivers/gpio"
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"gobot.io/x/gobot/platforms/digispark"
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)
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func main() {
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digisparkAdaptor := digispark.NewAdaptor()
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led := gpio.NewLedDriver(digisparkAdaptor, "0")
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work := func() {
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gobot.Every(1*time.Second, func() {
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led.Toggle()
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})
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}
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robot := gobot.NewRobot("blinkBot",
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[]gobot.Connection{digisparkAdaptor},
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[]gobot.Device{led},
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work,
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)
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robot.Start()
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}
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```
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## How to Connect
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If your Digispark already has the Little Wire protocol firmware installed, you can connect right away with Gobot.
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Otherwise, you must first flash your Digispark with the Little Wire firmware.
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The easiest way to flash your Digispark is to use Gort [https://gort.io](https://gort.io).
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Download and install Gort, and then use the following commands:
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Then, install the needed Digispark firmware.
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```
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gort digispark install
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```
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### OSX
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**Important**: 2012 MBP The USB ports on the 2012 MBPs (Retina and non) cause issues due to their USB3 controllers,
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currently the best work around is to use a cheap USB hub (non USB3).
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Plug the Digispark into your computer via the USB port and run:
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```
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gort digispark upload littlewire
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```
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### Ubuntu
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Ubuntu requires an extra one-time step to set up the Digispark for communication with Gobot. Run the following command:
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```
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gort digispark set-udev-rules
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```
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You might need to enter your administrative password. This steps adds a udev rule to allow access to the Digispark device.
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Once this is done, you can upload Little Wire to your Digispark:
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```
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gort digispark upload littlewire
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```
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### Windows
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We need instructions here, because it supposedly works.
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### Manual instructions
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For manual instructions on how to install Little Wire on a Digispark check out http://digistump.com/board/index.php/topic,160.0.html
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Thanks to [@bluebie](https://github.com/Bluebie) for these instructions! (https://github.com/Bluebie/micronucleus-t85/wiki/Ubuntu-Linux)
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Now plug the Digispark into your computer via the USB port.
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