modbus slave 设备通过 网关thingsboard-gateway 将数据上传到thingsboard云平台

   搭建thingsboard物联网云平台花了大量时间，从小白到最后搭建成功，折磨了好几天，也感谢网友的帮助，提供了思路最终成功搞定，特此记录。

 一、thingsboard环境搭建（Ubuntu20.04LTS）

        参考官方文档，按部就班操作即可

        http://www.ithingsboard.com/docs/user-guide/install/ubuntu/

      

二、thingsboard-gateway环境搭建

      也是参考官方文档，直接安装

      Step 1. Download the deb file

wget https://github.com/thingsboard/thingsboard-gateway/releases/latest/download/python3-thingsboard-gateway.deb

Step 2. Install the gateway using apt

Install ThingsBoard IoT Gateway as package and run it as daemon use the following command:
 

sudo apt install ./python3-thingsboard-gateway.deb -y

The deb package will automatically install the necessary libraries for the IOT Gateway to work:

1. System libraries: <