Finally, after a few posts, and a lot of work, our testing device (ie our dev board and our ESP) can be a complete sender. As a reminder at first our device will receive images from our server but we also wanted it to be able to send data to another device. Since my last post here are the issue I faced and the solutions I found.
The first issue was to send the data to the other device once we got its topic. To ensure we send the correct amount of byte, I wrote a python script that played the role of our second device.… Read more