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My NodeMCU V3 got overheated and died. Please help me figure out what i did wrong.

Brief Desrip: Project is an RC Car on ESPNOW Protocol. Transmitter setup have an Arduino Nano to take values from Two analogue joysticks and sends to a NodeMCU through Tx & Rx Pins, which then Transmits the values to the NodeMCU V3 in my Receiver (An RC CAR) over ESPNOW Protocol. Transmitter side is working perfect.

But, the NodeMCU V3 in my Receiver setup has got overheated and Died during a full throttled action. Here I am attaching the wiring diagram of the receiver setup. Please help me figure out whether there is any issues with the wiring.

WIRING DIAGRAM

NonTechGuyinTech
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1 Answers1

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Based on https://lastminuteengineers.com/l298n-dc-stepper-driver-arduino-tutorial/, you have wired your servo incorrectly. The third pin on the bottom blue connector (VSS) is the second input, not the output.

Power wiring diagram of the L298N

I can only speculate what happened, but I suspect that the servo tried to draw power from the D4 pin which overloaded and fried some internal circuitry of the ESP8266.

Draco-S
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