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NETWORKING AND COMMUNICATIONS

I am most interested in wireless control of devices for my final priject, so I learned using ESP32's WiFi modules this week. I first learned datasheet of ESP32-WROOM-32E and teh schematics of a dev board with ESP32. I then adopted the board deisgn from this as a basis and added the motor driver on it for potential use in my final project. Then I tested the server setting up via WiFi following this, it succeeded.

The problem occured after that is the board can hardly connect to WiFi. It only connects once after resetting about 20 times. Quentin told me it's probably the soldering issue, but I felet I cannot solder it to work. The copper pins on the ESP32-WROOM-32E is too small to solder and my soldering technique is not good enough to make it work.