ESP32 to Windows Forms - TCP Connection with lowest latency possible <5ms

MCU: ESP-WROOM-32

Development Environment: Visual Studio Community and Visual GDB [login to view URL]

ESP32 Libraries: Espressif ESP-IDF

Code type: C (for ESP32) and C#(for Windows Forms App (.NET Framework))

I need assistance in creating an ESP32 to Windows forms group of applications that allows an ESP32 unit to communicate to a Windows device over a wireless connection with a focus on lowest possible latency. This solution should allow for consistent testing to replicate low latency results, and an explanation in the method used.

The requirements of this connection are as follows:

Communication between devices is over a TCP socket connection

The ESP32 will be the Server. It should act as an echo device, sending back the received data.

The windows device will act as the client, sending a packet and timing how long it takes to receive a response.

The packet size between the two devices remains a constant 512bytes

The latency between the two devices will be the lowest latency possible, < 5ms, in ideal situations. This latency should remain consistent when the delay between packets can range from 0-100ms.

The latency results should be able to be reproduced with the output being printed via a serial connection.

Previous tests were conducted using example code from Visual Studio Community and Visual GDB, however the desired latency was not consistently achieved. Notably, as soon as a delay of 70-100ms was introduced between receiving the echoed response and sending a new packet from the client, the latency would increase to approximately 100-200ms.

I have attached the current ESP32 Program and Windows Forms Application that achieved the above.

Beceriler: C Programlama, .NET, Mikrodenetleyici, WiFi, C# Programlama

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Proje NO: #29014897