Subscribe to our Newsletter | Join our LinkedIn Group | Post on IoT Central

Communicate between 2raspberry pi

Dear pros,

I am looking for a solution for my network: I have: raspberry1_connected_hotspot4G_1 (stay in province 1) and raspberry2_connected_hotspot4G_2 (stay in province 2). I want to send data between raspberry1 raspberry2. Do you have any suggestions?




You need to be a member of IoT Central to add comments!

Join IoT Central

Email me when people reply –


  • You can do it here:

    Qortex - Preorder Axon
  • Difficult if you don't have a public IP address for either raspi1 or raspi2. Have you tried ngrok ( before? You can set up a free account and get a public IP (sort of) to test your raspi1 <--> raspi2 connection.

    To test the connection:
    - launch a simple tcp echo server in raspi2, say listening to port 14000.
    - run ngrok in raspi2 "ngrok tcp 14000" and jot down the returned public IP address
    - launch a simple tcp echo client in raspi1 and have it connect to the "returned public IP address, port 14000" socket. Send some data to this socket
    - verify the tcp echo server in raspi2 receives the data from raspi1 echo client.

    ngrok - secure introspectable tunnels to localhost
    ngrok secure introspectable tunnels to localhost webhook development tool and debugging tool
This reply was deleted.

Premier Sponsors

Upcoming IoT Events

More IoT News

IoT Career Opportunities