docs: update BLE docs with lots of cruicial info

Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram 2016-12-19 13:43:32 +01:00
parent 316ebe1a60
commit 2c305b5892
2 changed files with 60 additions and 9 deletions

View File

@ -280,7 +280,7 @@ You may access the [robeaux](https://github.com/hybridgroup/robeaux) React.js in
Gobot uses the Gort [http://gort.io](http://gort.io) Command Line Interface (CLI) so you can access important features right from the command line. We call it "RobotOps", aka "DevOps For Robotics". You can scan, connect, update device firmware, and more!
Gobot also has its own CLI to generate new platforms, adaptors, and drivers. You can check it out at [https://gobot.io/x/gobot/cli](https://gobot.io/x/gobot/cli).
Gobot also has its own CLI to generate new platforms, adaptors, and drivers. You can check it out in the `/cli` directory.
## Documentation
We're busy adding documentation to our web site at http://gobot.io/ please check there as we continue to work on Gobot

View File

@ -1,6 +1,6 @@
# Bluetooth LE
The gobot-ble adaptor makes it easy to interact with Bluetooth LE using Go.
The Gobot BLE adaptor makes it easy to interact with Bluetooth LE using Go.
It is written using the [gatt](https://github.com/currantlabs/gatt) package fork by Currant Labs of the package from [Paypal](https://github.com/paypal). Thank you!
@ -11,24 +11,75 @@ Learn more about Bluetooth LE [here](http://en.wikipedia.org/wiki/Bluetooth_low_
go get gobot.io/x/gobot && go install gobot.io/x/gobot/platforms/ble
```
## How To Connect
### OSX
Info here...
You need to have XCode installed to be able to compile code that uses the Gobot BLE adaptor on OSX. This is because the `gatt` package uses a CGo based implementation.
### Ubuntu
Info here...
Everything should already just compile on most Linux systems.
## How To Connect
When using BLE a "peripheral" aka "server" is something you connect to such a a pulse meter. A "central" aka "client" is what does the connecting, such as your computer or mobile phone.
You need to know the BLE ID of the peripheral you want to connect to. The Gobot BLE client adaptor also lets you connect to a peripheral by friendly name.
### OSX
To run any of the Gobot BLE code you must use the `GODEBUG=cgocheck=0` flag in order to get around some of the issues in the CGo-based implementation.
For example:
GODEBUG=cgocheck=0 go run examples/minidrone.go 8b2f8032290143e18fc7c426619632e8
OSX uses its own Bluetooth ID system which is different from the IDs used on Linux. The code calls thru the XPC interfaces provided by OSX, so as a result does not need to run under sudo.
### Ubuntu
On Linux the BLE code will need to run as a root user account. The easiest way to accomplish this is probably to use `go build` to build your program, and then to run the requesting executable using `sudo`.
For example:
go build examples/minidrone.go
sudo ./minidrone AA:BB:CC:DD:EE
### Windows
Info here...
Hopefully coming soon...
## How to Use
Example of a simple program...
Here is an example that uses the BLE "Battery" service to retrieve the current change level of the peripheral device:
```go
...
package main
import (
"fmt"
"os"
"time"
"gobot.io/x/gobot"
"gobot.io/x/gobot/platforms/ble"
)
func main() {
bleAdaptor := ble.NewClientAdaptor(os.Args[1])
battery := ble.NewBatteryDriver(bleAdaptor)
work := func() {
gobot.Every(5*time.Second, func() {
fmt.Println("Battery level:", battery.GetBatteryLevel())
})
}
robot := gobot.NewRobot("bleBot",
[]gobot.Connection{bleAdaptor},
[]gobot.Device{battery},
work,
)
robot.Start()
}
```