vspark
所属分类：处理器开发
开发工具：GO
文件大小：3KB
下载次数：0
上传日期：2015-01-19 15:08:42
上 传 者：
sh-1993
说明： Go中的微控制器编程库
(Library for programming microcontrollers in Go)
文件列表:
samples (0, 2015-01-19)
samples\blink-LED.go (504, 2015-01-19)
vspark.go (4491, 2015-01-19)
#Vspark
Vspark is a Go package that lets you write programs for [Spark devices] (https://www.spark.io/).
##Getting Started
Load the [Voodoospark firmware] (https://github.com/voodootikigod/voodoospark) onto your Spark device.
*For users familiar with [Spark-cli] (https://github.com/spark/spark-cli), voodoospark firmware is bundled and can be flashed through the CLI.
Set these environment variables on the host machine.
```go
export SPARK_TOKEN="your spark token"
export SPARK_DEVICE_ID="your device id"
```
##Install
```go
$ go get github.com/audreylim/vspark
```
##Use
**blink-LED.go**
```go
func main() {
err := vspark.PingSpark()
if err != nil {
log.Fatal(err)
}
err = vspark.PinMode("D7", "OUTPUT")
if err != nil {
fmt.Println(err)
}
for {
writeErr := vspark.DigitalWrite("D7", 1)
if writeErr != nil {
fmt.Println(writeErr)
}
time.Sleep(1000 * time.Millisecond)
writeErr = vspark.DigitalWrite("D7", 0)
if writeErr != nil {
fmt.Println(writeErr)
}
time.Sleep(1000 * time.Millisecond)
}
}
```
##API
**StaticIP and PingSpark()**
If you know the IP address of the core and want to bypass the Spark Cloud, you can directly set the IP address. If the IP address is not set, `PingSpark()` will retrieve it from the Spark Cloud.
Example:
```go
func main() {
vspark.StaticIP = "your static IP address and port number"
err := vspark.PingSpark()
if err != nil {
log.Fatal(err)
}
}
```
**PinMode(pin, mode)**
Modes:
- INPUT => DigitalRead (INPUT_PULLDOWN)
- OUTPUT => DigitalWrite (OUTPUT)
- ANALOG => AnalogRead (INPUT)
- PWM => AnalogWrite (OUTPUT)
- SERVO => ServoWrite (OUTPUT)
Example:
```go
err := PinMode("D7", "OUTPUT")
```
**DigitalWrite(pin, value)**
Set 1 for maximum 3.3V voltage ("HIGH") or 0 to turn it off ("LOW").
Example:
```go
err := PinMode("D7", "OUTPUT")
writeErr := DigitalWrite("D7", 1)
```
**AnalogWrite(pin, value)**
Available on D0, D1, A0, A1, A4, A5, A6, A7.
Set value from 0 to 255.
Example:
```go
err := PinMode("A1", "PWM")
writeErr := AnalogWrite("A1", 100)
```
**DigitalRead(pin)**
Example:
```go
err := PinMode("D1", "INPUT")
val, readErr := DigitalRead("D1")
```
**AnalogRead(pin)**
Example:
```go
err := PinMode("A1", "ANALOG")
val, readErr := AnalogRead("A1")
```
**ServoWrite(pin, deg)**
Set deg between 0 to 180.
Available on D0, D1, A0, A1, A4, A5, A6, A7.
Example:
```go
err := PinMode("D1", "SERVO")
servoErr := ServoWrite("D1", 180)
```
##LICENSE
MIT
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