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第一次提交:准备简化的代码仓库

项目来源git clone https://github.com/tinygo-org/bluetooth.git 克隆TingGo仓库 commit e75811786c7ec1f2890e1ff0508cc28d5ac5de62 release: update for v0.4.0

因为我是WIN10+VSCODE开发再拖到树莓派运行所以我删除无关紧要的东西执行rm.cmd 就获得当前项目的一切！描述一下如何执行这个rm.cmd { 直接双击rm.cmd 会失败的因为win的bash不支持通配符*

根据VSCODE的启发(微信文章:) 可以换一个bash C:\Program Files\Git\bin 这里有3个我选择这里的bash.exe 本来准备 C:\Program Files\Git\bin\bash.exe rm.cmd 的发现路径有问题直接 bash.exe rm.cmd 就成功了！应该是因为前面已经把git配置到系统环境变量啦！ }

建立本仓库是为了方便自己再调用它！计划修改 1--HCI接口切换 2--断开检查

第二次提交: 全局替换前面仓库已经推上去本地写代码 examples\nusclient\main.go 引用它以前是 import "tinygo.org/x/bluetooth" 我就写 import "GKoSon/gobluetooth" 测试失败！因为我这个项目的mod文件还是原始的本次提交做全局替换 tinygo.org/x/bluetooth -> GKoSon/gobluetooth module tinygo.org/x/bluetooth

第三次提交:全局替换本地测试还是不行

在本地执行go mod init xx 发现mod文件只有2行没有关联到我的仓库我手动修改一下本地的mod文件如图 ... module xx

go 1.17

require ( github.com/GKoSon/gobluetooth v1.2.3 ) ... 【后面的v1.2.3是随便写的根据ssh提示来的】在做单个文件go build main.go 看到有去拉我的代码啦！ go mod download github.com/GKoSon/gobluetooth root@raspberrypi:/home/pi/PK# go mod download github.com/GKoSon/gobluetooth go mod download: github.com/GKoSon/[email protected]: invalid version: unknown revision v1.2.3 最后失败换一个姿势 root@raspberrypi:/home/pi/PK# go mod tidy xx imports GKoSon/gobluetooth: github.com/GKoSon/[email protected]: reading github.com/GKoSon/gobluetooth/go.mod at revision v1.2.3: unknown revision v1.2.3 也是失败！！！

所以问题是:go.mod文件里面require项目最后的版本填写多少呢? 参考:http://t.zoukankan.com/twoheads-p-12889526.html

https://github.com/GKoSon/gobluetooth/commits/main 看到最后一个commit是 462c67d2a1ba951d39b7587e6e53053764b73284 我就写这个！ ... module xx

go 1.17

require github.com/GKoSon/gobluetooth v0.0.0-20220422050553-462c67d2a1ba ... 执行报错

root@raspberrypi:/home/pi/PK# go mod tidy xx imports GKoSon/gobluetooth: github.com/GKoSon/[email protected]: parsing go.mod: module declares its path as: GKoSon/gobluetooth but was required as: github.com/GKoSon/gobluetooth

修改以后再来一次 root@raspberrypi:/home/pi/PK# go mod tidy xx imports GKoSon/gobluetooth: malformed module path "GKoSon/gobluetooth": missing dot in first path element root@raspberrypi:/home/pi/PK# cat go.mod module xx

go 1.17

require GKoSon/gobluetooth v0.0.0-20220422050553-462c67d2a1ba root@raspberrypi:/home/pi/PK#

百度一下好像是有问题 "一个网络地址去下载,在下载前先CheckPath检查其合法性" 好像明白了那就再次全局修改一下

以前是 import "tinygo.org/x/bluetooth" 前面写 import "GKoSon/gobluetooth" 现在写import "github.com/GKoSon/gobluetooth" 这就是下载的路径啊！！！！测试一下【感觉还是fork一下在修改fork的仓库+replace的方式比较简单】

第四次提交:成功了前面提交以后我自己记录一下commit 手动修改本地文件 ... module xx

go 1.17

require github.com/GKoSon/gobluetooth a31499c265a17b1894e823ef49246b2b45d3a555 ... 现在执行 go mod tidy 可以成功了！

root@raspberrypi:/home/pi/PK# go mod tidy
go: downloading github.com/GKoSon/gobluetooth v0.0.0-20220422055325-a31499c265a1 root@raspberrypi:/home/pi/PK# go build main.go

command-line-arguments

./main.go:121:13: device.IsConnected undefined (type *bluetooth.Device has no field or method IsConnected) root@raspberrypi:/home/pi/PK#

再看一下 GO帮我做的事情 (其实没有意义) root@raspberrypi:/home/pi/PK# cat go.mod module xx

go 1.17

require github.com/GKoSon/gobluetooth v0.0.0-20220422055325-a31499c265a1

require ( github.com/fatih/structs v1.1.0 // indirect github.com/godbus/dbus/v5 v5.0.3 // indirect github.com/konsorten/go-windows-terminal-sequences v1.0.3 // indirect github.com/muka/go-bluetooth v0.0.0-20210812063148-b6c83362e27d // indirect github.com/sirupsen/logrus v1.6.0 // indirect golang.org/x/sys v0.0.0-20200826173525-f9321e4c35a6 // indirect )

本地的单例程序上传上来可以独立在PI运行的! 修改需要我自己的函数！

第五次提交: 直接把下面文件放在台湾树莓派运行流程如下 pi@raspberrypi:/XX $ go build main.go main.go:10:2: no required module provides package github.com/GKoSon/gobluetooth: go.mod file not found in current directory or any parent directory; see 'go help modules' pi@raspberrypi:/XX $ go mod init xx go: creating new go.mod: module xx go: to add module requirements and sums: go mod tidy pi@raspberrypi:/XX $ go mod tidy go: finding module for package github.com/GKoSon/gobluetooth go: downloading github.com/GKoSon/gobluetooth v0.0.0-20220422070120-588124614c38 go: found github.com/GKoSon/gobluetooth in github.com/GKoSon/gobluetooth v0.0.0-20220422070120-588124614c38 go: downloading github.com/godbus/dbus/v5 v5.0.3 go: downloading github.com/sirupsen/logrus v1.6.0 go: downloading github.com/stretchr/testify v1.6.1 go: downloading github.com/konsorten/go-windows-terminal-sequences v1.0.3 go: downloading golang.org/x/sys v0.0.0-20200826173525-f9321e4c35a6 go: downloading github.com/davecgh/go-spew v1.1.1 go: downloading github.com/pmezard/go-difflib v1.0.0 go: downloading gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c pi@raspberrypi:/XX $ go build main.go main.go:10:2: found packages bluetooth (adapter.go) and main (koson_pi_nus.go) in /home/pi/go/pkg/mod/github.com/!g!ko!son/[email protected] pi@raspberrypi:~/XX $ 这是因为我自己代码里面koson_pi_nus.go也有mian.go 提交一次del它

第六次提交: 本地写代码如下可以的操作是和上面说的一样利用mod 自动拉如果更新mod 就手动把V1.2.3修改为最后的commit

package main

// This example implements a NUS (Nordic UART Service) client. See nusserver for // details.

import ( "log" "time"

bluetooth "github.com/GKoSon/gobluetooth"

)

var ( serviceUUID = bluetooth.ServiceUUIDNordicUART rxUUID = bluetooth.CharacteristicUUIDUARTRX txUUID = bluetooth.CharacteristicUUIDUARTTX )

var adapter = bluetooth.DefaultAdapter

const target_name = "M_KOSON"

var runCnt int64 = 0

func oneloop() { // Enable BLE interface. //STEP 准备通过这个接口选择不同HCI err := adapter.Enable() if err != nil { log.Printf("could not enable the BLE stack:%v", err.Error()) return }

// The address to connect to. Set during scanning and read afterwards.
var foundDevice bluetooth.ScanResult

// Scan for NUS peripheral.
runCnt++
log.Printf("Scanning...%d", runCnt)
err = adapter.Scan(func(adapter *bluetooth.Adapter, result bluetooth.ScanResult) {
	if !result.AdvertisementPayload.HasServiceUUID(serviceUUID) {
		return
	}
	/*加强停止Scan函数的限制条件*/
	/*条件1--从机必须有名字 而且符合约定*/
	log.Printf("Scanned MAC %s", result.Address.String())
	if target_name != result.AdvertisementPayload.LocalName() {
		log.Printf("Failed name")
		return
	}
	log.Printf("Scanned name %s", result.LocalName())
	/*条件2--从机连接成功*/
	d, e := adapter.Connect(result.Address, bluetooth.ConnectionParams{})
	if e != nil {
		log.Printf("Failed Connect %v %v", d, e)
		return
	}

	foundDevice = result

	// Stop the scan.
	err := adapter.StopScan()
	if err != nil {
		// Unlikely, but we can't recover from this.
		log.Printf("Failed StopScan %v ", err.Error())
	}
})

if err != nil {
	log.Printf("Failed Scan %v ", err.Error())
	return
}

// Found a NUS peripheral. Connect to it.
device, err := adapter.Connect(foundDevice.Address, bluetooth.ConnectionParams{})
if err != nil {
	log.Printf("TG Failed to connect: %v ", err.Error())
	return
}

// Connected. Look up the Nordic UART Service.
log.Printf("Discovering service...")
services, err := device.DiscoverServices([]bluetooth.UUID{serviceUUID})
if err != nil {
	println("Failed to discover the Nordic UART Service:", err.Error())
	return
}
service := services[0]

// Get the two characteristics present in this service.
chars, err := service.DiscoverCharacteristics([]bluetooth.UUID{rxUUID, txUUID})
if err != nil {
	println("Failed to discover RX and TX characteristics:", err.Error())
	return
}
var rx bluetooth.DeviceCharacteristic
var tx bluetooth.DeviceCharacteristic
if chars[0].UUID() == txUUID {
	tx = chars[0]
	rx = chars[1]
} else {
	tx = chars[1]
	rx = chars[0]
}
log.Printf("RX %v\r\n", rx)
log.Printf("TX %v\r\n", tx)
log.Printf("DiscoverCharacteristics:%+v\r\n", chars)

// Enable notifications to receive incoming data.
err = tx.EnableNotifications(func(value []byte) {
	log.Printf("PI recv %d bytes: %+v\r\n", len(value), value)
})
if err != nil {
	log.Printf("Failed EnableNotifications %+v\r\n", err.Error())
	return
}

log.Printf("Connected.When NODE disconnect.This pid while Exit\r\n")
/*等待从机断开 PI从不发消息*/
for {
	if !device.IsConnected() {
		log.Printf("device GoodBye\r\n")
		return
	}
	time.Sleep(time.Microsecond * 500)
}

}

func main() { for { oneloop() } }

/* 程序逻辑 main是死循环也就是一旦oneloop()调用return那就继续下一次正常retun是等待BLE链路的标记位

现在小结一下两种思路 1---就是我这个把别人的拉下来 rm别人的.git文件初始化自己的git文件把代码推上来全局修改仓库里面的mod的包名现在可以自己本地引用这个新的包了和别人的完全脱钩你感觉不到别人

2--我另外一个fork的把别人的fork到自己GitHub 把自己这个仓库拉下来自己随便ADD函数什么的自己修改在推上去

现在不可以自己本地引用这个新的包因为没有新包呀本地的代码和前面一样还是在使用原始仓库的包想使用自己fork的这个的修改的话那就自己把本地文件的mod文件修改一下采用replace的关键字从一个云端切换到另外一个云端

# Packages

# README

command-line-arguments