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Need help with TCP client mode with an android server
Posted:
Sat Nov 07, 2020 2:19 pmby MVRP
Hi
I just activate my cell phone's hotspot and esp8266 connects to its wifi as a TCP client and gets an IP. But when i try to use an app to send certain data into the esp a port is required while Android host does not assign a port number to the ESP.
I tried everything and no success so far.
Re: Need help with TCP client mode with an android server
Posted:
Sun Nov 08, 2020 5:08 amby JurajA
connection to an AP is not a TCP connection. TCP is some layers higher.
the DHCP assigns the IP address in a TCP/IP network.
port is for TCP connection or UDP message and is on you to set it when connecting a TCP socket or sending an UDP message or starting a TCP server or an UDP message listner
Re: Need help with TCP client mode with an android server
Posted:
Mon Nov 09, 2020 1:52 amby MVRP
JurajA wrote:connection to an AP is not a TCP connection. TCP is some layers higher.
the DHCP assigns the IP address in a TCP/IP network.
port is for TCP connection or UDP message and is on you to set it when connecting a TCP socket or sending an UDP message or starting a TCP server or an UDP message listner
So what exactly do you suggest? In udp mode i do the same with my cellphone but the ESP can grab a port number with AT+CIPSTART command but this command does not work in tcp mode.
Re: Need help with TCP client mode with an android server
Posted:
Mon Nov 09, 2020 1:50 pmby JurajA
for me it works.
what is the problem?