ATLib

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ATLib is a C# library that makes it easy to communicate with modems.

ATLib 최신버젼 다운로드

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# ATLib
[![CI](https://github.com/hbjorgo/ATLib/workflows/CI/badge.svg)](https://github.com/hbjorgo/ATLib)
[![Nuget](https://img.shields.io/nuget/v/hebotech.atlib)](https://www.nuget.org/packages/HeboTech.ATLib)
[![Nuget](https://img.shields.io/nuget/dt/HeboTech.ATLib)](https://www.nuget.org/packages/HeboTech.ATLib)

ATLib is a C# AT command library that abstracts away the commands and makes it easy to communicate with modems.

Hayes command set (commonly known as AT commands) is a command set frequently used in modems. Read more about it at [Wikipedia](https://en.wikipedia.org/wiki/Hayes_command_set).

Feedback is very much welcome and please request features 🙂

## Supported commands:
- Send SMS in PDU format (GSM 7 bit or UCS2 encoding)
- Send concatenated SMS (message that spans over multiple SMSs) in PDU format (GSM 7 bit or UCS2 encoding)
- SMS supports emojies
- List SMSs
- Read SMS (PDU format (GSM 7 bit or UCS2 encoding))
- Delete SMS
- Get SMS Status Report (delivery status)
- Dial number
- Answer incoming call
- Hang up call
- Get SIM status
- Enter SIM PIN
- Get remaining PIN & PUK attempts
- Get product information
- Get battery status
- Get signal strength
- Get / set date and time
- Disable echo
- Send USSD code
- Get / set character set
- Get IMSI
- Some modems may also support modem specific commands

## Events
- Incoming call
- Missed call
- Call started
- Call ended
- SMS received
- SMS Status Report received
- Error received
- USSD response received
- Generic event

## Supported modems:
- Adafruit FONA 3G (based on SIMCOM SIM5320 chipset)
- D-Link DWM-222 (based on Qualcomm MDM9225 chipset)
- TP-LINK MA260 (based on a Qualcomm chipset)
- Cinterion MC55i
- Other modems may work using one of the implementations above. You can add your own implementation using the existing functionality as base.

## Other
- Debug functionality that lets you intercept incoming and outgoing data

## Usage
Install as NuGet package
```shell
dotnet add package HeboTech.ATLib
```

Using a serial port to communicate with a modem is easy:
```csharp
using HeboTech.ATLib.Messaging;
using HeboTech.ATLib.Misc;
using HeboTech.ATLib.Modems;
using HeboTech.ATLib.Modems.Adafruit;
using HeboTech.ATLib.Numbering;
using HeboTech.ATLib.Parsing;
using System;
using System.IO.Ports;
using System.Threading.Tasks;

namespace HeboTech.ATLib.TestConsole
{
    public class GetStartedExample
    {
        public static async Task RunAsync(string portName, int baudRate, string pin, string recepientPhoneNumber)
        {
            // Set up serial port
            using SerialPort serialPort = new SerialPort(portName, baudRate, Parity.None, 8, StopBits.One)
            {
                Handshake = Handshake.RequestToSend
            };
            serialPort.Open();

// Create AT channel
            using AtChannel atChannel = AtChannel.Create(serialPort.BaseStream);

// Create the modem
            using IModem modem = new Fona3G(atChannel);

// Listen to incoming SMSs
            modem.SmsReceived += (sender, args) =>
            {
                Console.WriteLine($"SMS received: {args.SmsDeliver}");
            };

// Listen to incoming SMSs stored in memory
            modem.SmsStorageReferenceReceived += (sender, args) =>
            {
                Console.WriteLine($"SMS received. Index {args.Index} at storage location {args.Storage}");
            };

// Open AT channel
            atChannel.Open();

// Configure modem with required settings before PIN
            var requiredSettingsBeforePin = await modem.SetRequiredSettingsBeforePinAsync();

// Get SIM status
            var simStatus = await modem.GetSimStatusAsync();
            Console.WriteLine($"SIM Status: {simStatus}");

// Check if SIM needs PIN
            if (simStatus.Result == SimStatus.SIM_PIN)
            {
                var simPinStatus = await modem.EnterSimPinAsync(new PersonalIdentificationNumber(pin));
                Console.WriteLine($"SIM PIN Status: {simPinStatus}");
            }

// Configure modem with required settings after PIN
            var requiredSettingsAfterPin = await modem.SetRequiredSettingsAfterPinAsync();

// Read SMS at index 1
            var sms = await modem.ReadSmsAsync(1);
            if (sms.Success)
                Console.WriteLine(sms.Result);

// Send SMS to the specified number
            PhoneNumber phoneNumber = PhoneNumberFactory.CreateCommonIsdn(recepientPhoneNumber);
            string message = "Hello ATLib!";
            var smsReferences = await modem.SendSmsAsync(new SmsSubmitRequest(phoneNumber, message));
            foreach (var smsReference in smsReferences)
                Console.WriteLine($"SMS Reference: {smsReference}");
        }
    }
}
```
Because it relies on a stream, you can even control a modem over a network! Either use a network attached modem, or forward a modem serial port to a network port.

For more examples, check out the TestConsole project in the code.

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