Strange Power consumption of brand new esp32
Posted: Wed Mar 10, 2021 8:56 am
Hi all, and thank you for your attention. i want to report here a strange behavior of my ESP32 - wroom 32E module.
I finalized a project, and made a prototype pcb. The project counts only few element, an ldo the esp32-wroom 32E 4MB, and a switch.
As usual the esp32 module arrived already soldered to the PCB and i presume blank..... but when i power up the module, i get a current of 100 ma, and is impossible to create a connection between the serial programmer and the esp32. The flash tool times out and fails.
That seems very strange to me and i can't find a reason. Testing some unsoldered and unprogrammed Esp32 wroom 32E i get a current around 50 ma . Testing an erased stand alone module i get no more than 20 ma. So can you tell me, based on your experience, if this is normal? why i get this 100 ma current request?
Thank you guys!
Guido
I finalized a project, and made a prototype pcb. The project counts only few element, an ldo the esp32-wroom 32E 4MB, and a switch.
As usual the esp32 module arrived already soldered to the PCB and i presume blank..... but when i power up the module, i get a current of 100 ma, and is impossible to create a connection between the serial programmer and the esp32. The flash tool times out and fails.
That seems very strange to me and i can't find a reason. Testing some unsoldered and unprogrammed Esp32 wroom 32E i get a current around 50 ma . Testing an erased stand alone module i get no more than 20 ma. So can you tell me, based on your experience, if this is normal? why i get this 100 ma current request?
Thank you guys!
Guido