ESP32 Forum

Hello! I open the topic, because after a week of painstaking work, the result was not achieved.

Libraries tried different versions: early and latest. I load the code for deploying the mesh network on two ESP32-CAM boards (I attach the code - basic.ino). Both boards are from Aliexpress (manufacturer not identified). Both are powered by 5 volts. One of them is connected to the port monitor. No messaging takes place.

What could be wrong: in the code or in the hardware? Please give me some good advice: which way to dig. Could someone upload this code to their boards to test if it works?

Not sure what was painstaking about loading/running this demo code. I successfully tried this demonstration code in a 5 node mesh (2xESP32 dev boards, 2xESP8266 dev boards, ESP32-CAM.

I assume the code compiled and downloaded on your ESP's without error, and your Serial Monitor baud rate is set to 115200. You might want to enable the full debugging:

Uncomment this line:
mesh.setDebugMsgTypes( ERROR | MESH_STATUS | CONNECTION | SYNC | COMMUNICATION | GENERAL | MSG_TYPES | REMOTE ); // all types on

Comment this line:
// mesh.setDebugMsgTypes( ERROR | STARTUP ); // set before init() so that you can see startup messages

If still nothing, add a message inside the loop to see if the program is running:

Serial.printf("Loop Test\n");


... which will (should) give you plenty of this:
10:28:56.249 -> Loop Test
10:28:56.249 -> Loop Test
10:28:56.249 -> Loop Test
10:28:56.249 -> Loop Test
10:28:56.249 -> Loop Test

Thank you very much for checking the code! You were absolutely right - the code works fine! As it turned out, during Wi-Fi initialization, there was a peak load with a current greater than the USB port on the computer can supply. Therefore, the module was rebooted cyclically. Connecting the ESP32 to a self-contained 5V power supply solved the problem!