Currently I'm working on a new project where I'm trying to connect multiple client devices (esp8266 + accelerometer) to one main server device (esp8266 + SD card module). I'm looking for the best and fastest method to do that. I was thinking about creating web server on main device and send data from client via web, but I'm worried that this will be too slow. I want to mount my devices on vehicle running around 100km/h and I need to get as much data as possible.
I need method supported by Arduino IDE as some of code is already created.
Thanks in advance for any tips.
Hemingway