# 701SecDev

**Repository Path**: ansitw/701SecDev

## Basic Information

- **Project Name**: 701SecDev
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-01-16
- **Last Updated**: 2026-01-31

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# 701SecDev

## 701SecDev 项目介绍
基于255MG-701 进行二次开发的项目

255MG-701运行ubuntu22.04系统，支持多种开发方式
1. 基于node-red进行开发
2. 基于python进行开发
3. 基于c/c++进行开发

Demo逐渐完善中

## 开发说明

1. chirpstack的上下行通路，走MQTT通道
   1. 上下行数据通过MQTT协议进行传递
   2. 上下行数据的topic分别为：
      1. 上行数据：`application/{applicationID}/device/{deviceID}/event/up`
      2. 下行数据：`application/{applicationID}/device/{deviceID}/command/down`
   3. 数据格式为JSON格式
2. 用户取到数据后再进行二次开发，添加自己的应用业务逻辑


eg:上行数据
topic: `application/7aa8a286-c592-4bc1-9479-b8c6b30f55c8/device/8dafe60100113001/event/up`

``` json
{
    "deduplicationId": "e76fe6dd-c06a-4c15-a4b0-176220b46e92",
    "time": "2026-01-13T08:18:03.931824220+00:00",
    "deviceInfo": {
        "tenantId": "0c5a7ec6-b6f9-49f3-8745-0abaeb1ce77c",
        "tenantName": "CustomerTest",
        "applicationId": "7aa8a286-c592-4bc1-9479-b8c6b30f55c8",
        "applicationName": "eu868-test-zw",
        "deviceProfileId": "fec0e378-734f-439d-a1c6-118fe85cb9ca",
        "deviceProfileName": "EU868_OTAA_CLASSA",
        "deviceName": "EC sensor",
        "devEui": "8dafe60100113001",
        "deviceClassEnabled": "CLASS_C",
        "tags": {}
    },
    "devAddr": "000dc18f",
    "adr": false,
    "dr": 3,
    "fCnt": 23,
    "fPort": 10,
    "confirmed": true,
    "data": "AQAKAAAAxgAAAAAPvw==",
    "rxInfo": [{
            "gatewayId": "f09e9efffe0d6fb4",
            "uplinkId": 46060,
            "nsTime": "2026-01-13T08:18:03.725344212+00:00",
            "rssi": -60,
            "snr": 12.0,
            "channel": 4,
            "location": {},
            "context": "sW4n1w==",
            "crcStatus": "CRC_OK"
        }
    ],
    "txInfo": {
        "frequency": 867300000,
        "modulation": {
            "lora": {
                "bandwidth": 125000,
                "spreadingFactor": 9,
                "codeRate": "CR_4_5"
            }
        }
    },
    "regionConfigId": "eu868"
}


```

## node-red 
见node-red目录

## Python

## C/C++

已含gcc交叉编译工具，另外设备也内置了gcc
gcc下载链接
https://developer.arm.com/-/media/Files/downloads/gnu/11.3.rel1/binrel/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-linux-gnueabihf.tar.xz