Hi Md Ziaul Haque Zim , you can download a program (even though the same program resides already in memory) because during / after programming a reset is executed. Disadvantage: If the current program is of large size downloading might take some time.

Hello, Md Ziaul Haque Zim, you can restart the ESP32 with a call to the restart method on the ESP object using class EspClass .

void setup() {

Serial.begin(115200);

Serial.println("Restarting in 10 seconds");

delay(10000);

ESP.restart();

}

void loop() {}

you can execute a soft reset by generating EspClass us presented in the link : https://www.youtube.com/watch?v=VmKtrx3ocVc .

Hello Joerg Fricke , Salah Eddine Bouzid ,

Whenever we flash it, it will reboot automatically. But I just want to trigger it to reboot without flashing.

I was thinking, there is a possibility to reset the board via extra wires on the serial interface. (DTR and RTS) They use the two resistors next to the boot button. The espTool uses them to enter programming mode and to reset the board afterward. So it should be possible from the pc likely using the espTool with some extra arguments. Though no integration into the IDE afaik.

Connect any GPIO port to the RST pin.

Initiate that GPIO port as output and set it to HIGH at boot.

When you need a reset, switch the GPIO port to LOW.

If changing the hardware is not a problem at this stage of your project, then Petar Bojovic's solution is a good idea !