Yes, esptool will print the revision automatically when it connects for any command. You will need esptool v2.8 or newer to correctly detect V3 silicon: Thanks. I tested the official ESP-WROOM-32E module it works. My esptool.exe is built by version 2.6 which showed revision 1. I tried esptool.py wh...

Hi,
I know the new ESP32 V3 chip is out now, which is used by the official ESP-WROOM-32E module. But I bought some dev board lately which's module is not the official one. Maybe 3rd party ones.
Can I use the software tools such as esptool.exe or espefuse.py to check if the chip's version is V3?

[update]
It's DC motor's spark pulses. I replaced the motor with another motor with a cap on it, got a flat line.
I tested with the better motor. ESP32 didn't crash.

Thanks a lot. @ESP_Sprite

[update] I continued to test the voltage with my laptop and the USB oscilloscope. During the heavy test, ACS70331's power supply got spikes. The 7.4V battery's output got spikes which were huge. And I added another voltage converter to convert another 3.3V from the same battery and test the output, ...

(is your ESP32 connected to the same power supply as the motor?) or indirectly (are the cables to the motor close to the ESP32 or its associated cables?) The motor is powered by a separate Motor Only battery. The circuit of the motor is very simple. A 7.4V battery module with switch and connect the...

[Solved] DC motor without the spark cap crashed everything. Hi, My ESP32 dev boad is MH-ET ESP32MiniKit. Lately, I tried to use ACS70331and ACS712 to measure the current of my robot's DC motor. But ESP32 crashed when the current changed rapidly. The motor's stall current I measured from my multimete...

Hi, I'm using ledc() to control my servos. I'm using 2 360° servos to replace the motors to make a simple robot. Lately, I've found that when I set the duty to 0 to stop my robot, the robot still moving. I use some code to print the duty of ledc() after I set it, the number is set to 0, but the serv...

Hi, I'm using ESP32 Arduino. I got a crash reboot lately and I couldn't reproduce it. But I realy want to find out if the cause is a hardware(power) failure or a software bug. My ESP32 is working alone, not monitored by a PC serial monitor. I think connecting a PC is not possible for my case, I'm te...

I understand now. Thanks.

its possible. Another option to try on a new motor driver board to help is to put a 100 or 220 Ohm resistor in series with your 2 control wires and PWM wire to your driver board. Thanks. I will try that. Could you tell me the physics theory of the small resistor? Do they protect the ESP32 from shor...