lora protocol

First, IntroductionThe data interchange format between the GPS (Global Positioning System) receiver and the handset is usually customized by the manufacturer, and its definition content is difficult for ordinary users to know, and the control applications configured by different brands and different models of GPS receivers are different depending on the manufacturer. Therefore, for general purpose GPS application software, a uniform format data standard is needed to solve the interface problem w

OTS does not have PHP SDK, only through the official AIP document itself to write an SDK, now signed these have been done, is the OTS API submitted parameter format must be protocol buffer, but PHP native does not support this format, only through the open source plug-in to solve, I now use pb4php this east, but through the OTS otsprotocolbuffer message definition, parse out the format is always wrong, there will be OTS, or will use PHP to do

To facilitate understanding, the waveform is the signal from the infrared receiver, which is the opposite of the signal level (0 or 1) described in the Protocol. The NEC protocol is one of the many infrared remote control protocols. In addition to NEC, there are other protocols such as RC5 and rc6. Most of the non-learning universal TV remote control devices I bought on the market integrate one or more c

differencein the network communication, TCP is similar to making a phone call, in this way for network communication, you need to establish a dedicated virtual connection, and then perform reliable data transmission, if the data sent failed, the client will automatically resend the data. and the UDP Way is similar to sends the text message, uses this way carries on the network communication, does not need to establish the specialized virtual connection, the transmission is not very reliable, if

original HTTP protocol), if the other side did not answer, he will always wait, know the other side to respond, or mobile phone wood power. Well It's me, hehe, I'm going to take a shower. "Tian made a response (the server gave a refusal to respond, the Goddess is so, oh, sleep, to bathe). The first courtship behavior of the iron Pillar failed successfully. There should be applause here, after all, this is the fate of a single dog.Iron again don't for

eclipse4.4 Proto File Editor protocol Buffer editor installationGoogle Protocol buffer file Editor. Plug-in Project name Protobuf-dt, is hosted on Google Code, the country is now not connected to Google code, the eclipse market can be found in the plug-in, but not installed. Found on GitHub that someone has already done the relevant synchronization, can be downloaded at the address below.Click to open linkO

Edit this BlogMr. Yuan BlogsRequest Protocol Request FormatRequest First line: Request Method: Get,post Request Path:/form/entry Protocol version: http/1.1 Request Header: Host Connection Content-type Content-length: Data content Size Request header and request body must be two \ r \ n to separateRequest Content entity: Only the POST request has the request body, the GET reque

timing of codec and STM32 timing is not a match. We can see that the Philips protocol the first clock on the rising edge of the latched data is invalid, while the codec chip's first rising edge latch data is valid. This causes the STM32 to transmit to the codec the highest bit of data will be lost, but in the same mic acquisition and playback process due to the acquisition and playback of the protocol is m

what is the HTTP protocol?HTTP is an abbreviation for the Hyper Text Transfer Protocol (Hypertext Transfer Protocol). Its development was the result of collaboration between the World Wide Web Association (Wide) and the Internet Working Group IETF (Internet Engineering Task Force), which eventually released a series of RFC,RFC 1945 defines the http/1.0 version. T

The difference between TCP protocol and UDP Protocol (RPM)First we find out that the TCP protocol and the UCP protocol and the TCP/IP protocol, many people confused, has always been the TCP/IP protocol and the difference between t

Part1. The most familiar strangersCompared with the TCP/UDP protocol, the HTTP protocol may be more familiar, as everyone can see the http://xxx.com word everywhere. But, reallyThe students who are aware of the HTTP protocol may be just a few, and many people don't even know what "404" means. And this article, it is to let everyone more in-depth understandingNext

IP protocol Header formatAddress Resolution Protocol ARPReverse Address Resolution Protocol RARPInter-network Control Message Protocol ICMPInternet Group Management Protocol IGMP IP Datagram HeaderIP Datagram Header format:The highest bit is on the left and is recorded

Linux2.6 kernel protocol stack series-TCP protocol 2. Receive, linux2.6 -- tcp 1. queuing mechanism When receiving incoming TCP packets, there are three Queues: ● Queue to be processed ● Pre-queuing queue ● Receiving queue The receiving queue contains the processed TCP data segment. That is, all the protocol headers are removed and the data is being copied to the

Solution to failure of win7 Protocol version attribute: win7 Protocol This morning, I started my computer and couldn't connect to the Internet. I found the problem: I couldn't open the win7 Protocol Version 4 attribute, for example: Click Install to complete subsequent operations. Solve the problem according to method 2. But a little different, according to th

MyProtocol.h#import @protocol MyProtocol @optional-(void) print: (int) value;@required-(int) Printvalue: (int) value1 andvalue: (int) value2;@endMyTest.h#import #import "MyProtocol.h"@interface Mytest:nsobject -(void) showinfo;@endMytest.m#import "MyTest.h"@implementation MyTest-(void) showinfo{NSLog (@ "Showinfo ...");}-(int) Printvalue: (int) value1 andvalue: (int) value2{NSLog (@ "value1 =%d, value2 =%d", value1, value2);return 0;}The following met

Protocol example{var simpledescription:string{get}Mutating func adjust ()}Class Inheritance ProtocolClass simple:example{var simpledescription = "Sing"Func Adjust () {println ("Description: \ (simpledescription)")}}var simple = simple ()Simple.simpledescriptionSimple.adjust ()struct Inheritance Protocolstruct simplestructure:example{var simpledescription = "struct"Mutating func adjust () {println ("This is \ (simpledescription)")}}var str = simplestru

integer var =? In the range of 128 to 127 assignment, the integer object is generated in the Integercache.cache, the existing objects will be reused, the integer value within this interval can be directly used = = to judge,However, all data outside this interval will be generated on the heap and will not be reused for existing objects, which is a big pit, and it is recommended to use the Equals method for judgment.8. The standard of use for basic data types and packaging data types is as follow

A. Request protocol format:请求首行;///index.html HTTP/1.1请求头信息;//请求头名称:请求头内容，即为key:value 格式，例如：Host:localhost空行;//用来与请求体分隔开请求体;//GET没有请求体，只有POST有请求体Two. Get request HTTP default request method is GET request No request body The data must be within 1K Get data is exposed in the browser's address bar Common operations for GET requests The browser gives the URL directly in the address bar, then it must be a GET

SMTP is used to deliver e-mail messages on the Internet. Document RFC821 provides all the details of the agreement. But you just have to remember the following-the basic commands and methods of the agreement. The principle of the protocol is simple. Nothing more than a client computer sending a command to the server, and then the server returns some information to the client computer. The commands sent by the guest room and the server response are s

Introduction There are many types of caching: Server caching, Third-party caching, browser caching, proxy caching, gateway caching, database caching, and so on. The browser cache is the least expensive because the browser cache relies on the client and consumes almost no server-side resources. Today's summary is also associated with browser caching. Browser caching must be very familiar, simply that the browser on the disk to the most recent user requested data storage, when we request this page