Hello everyone,
I connected the 5V output of an L298 (powered by an 11.1V battery) to the 5V pin of my ESP32. However, when I measure the voltage on the 5V pin of the ESP32, I get around 3.5V instead of 5V. The ESP32 does not turn on or execute the code. Can anyone help me ?
Thanks in advance !
This one?
or this?
in which case
5V Supplies power for the switching logic circuitry inside L298N IC
I a have the second one !
Yess !
If you disconnect the ESP and measure between 5V and GND what do you read?
Wait the Nano ESP does not have a 5V pin.
Exactly where did you connect this 5V?
Sorry my bad that's not actually a nano esp 32 it's a esp32 devkit
So did you disconnect and measure the voltage on the 5V pin of the driver like I asked?
Yes i did and I mesured 5V. But when I connected the esp32 to the 5v output of the driver I only mesured 5V on the 5V output of the esp
I assume you meant 3.5V
Well there are many ESP32 boards.
My board has Vin and no 5V pin
Which board do you have?
NOTE
On may ESP32 boards you can have only ONE power source connected at a time.
So if you have USB connected, you cannot have anything connect to 5V pin or Vin Pin
I only have a 5V pin. Thanks for your time !
When I made the test I had no usb connected. There was only the battery
If your ESP32 board still works OK when connected via USB, then I suspect there is something wrong with the L298 driver board OR you battery is almost dead.
Okay and how can I check that ?
And what if the esp is dead ?
Load the simple "hello world" sketch and see if it prints.
If it does, then the ESP is OK.
Unfortunately it doesnt :(. What could be the cause following you ?
Does the code compile and upload to the ESP32 without errors?