TCP Client on ESP32 with ESP-IDF programmed in C: Step-by-Step Tutorial

Learn how to build a TCP Client on the ESP32 with ESP-IDF, all programmed in C, starting from scratch. This step-by-step tutorial guides you through setting up your environment, creating the project, and writing the necessary code for TCP communication. Perfect for anyone looking to explore networking on embedded systems. Check the links below for additional resources and tools.

GitHub Repository - Find all the code and related files for this project at the following link:

Berkeley Sockets Explained - Want to learn more about the underlying technology? Check out the Wikipedia page on Berkeley Sockets at:

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[bgable]

Very good demo and explanation of Sockets! "I'll be back"

[iam]

Very interesting, and just what I needed for my new peoject. Subscribed.

[shivangiranjan]

Hi, can you help me with a similar code for modbus RTU rather than TCP?

[sadf]

Do you have to reset the whole client every time? Seems like a waste of cpu cycles?

[Kevin-sxwe]

Thanks for the video.
Will you try to do TCP server example on ESP32?

[chev-ord-eep-ota]

Hi Josh, my name is Sam. I work as a maintenance mechanic for a manufacturing facility and I'm going to school for industrial engineering. I am currently starting a custom 24x36 inch 3d printer to practice my design skills and learn programming and controls. I have been reading about using CAN to run the print head of a 3d printer. big tree tech offers a can control board BIGTREETECH EBB 36/42 Can Bus U2C V2.1. But my issue is I am designing my print head to be a dual extruder. That being said it will have 2 sets of everything. Is there a way to connect 2 seperate can boards together, or do I have to custom put them together on the same can. I have been looking and talking to my control engineers at work and no one seams to know the answer. logically it can be done Im sure, i just am not sure how to proceed. Do you have any suggestions.

[asierdanjou]

Hi Josh, your video looks great and very usefull. My name is Asier and I'm electronic engineer. I'm now working with ESP32 and network interfaces. Do you have any example with UDP protocol ? Could I contact you for helping with an issuue I've got trying to send and UDP datagram ? Thanks!!

[wchen]

void tcp_client_connect(void* bla) .... thats about what you are doing here i guess. its just a small thing but please dont name functions after things and dont name things after something_do_to(). it makes code so much harder to read in the first place. i dont care about some typedef struct {void* bla}tcp_connection; at least at this stage but its just not a good naming. still 4*/5* cheers from berlin :-)