Now i have the results from the oscilloscope: No voltage drop at all - same error.

Do i have a faulty module? Should i return it to my reseller? Any other ideas what to do?

Are the measurements from my previous post in spec?

Thanks in advance!

Hi Angus,

i didnt have time today at work to measure the module with the oscilloscope so i will try again tomorrow.

While i was going to measure the EN-Reset current i noticed that the error type now changed from IllegalInstruction to InstrFetchProhibited with following output:


ets Jun 8 2016 ...

As suggested i tried again with one of those WIMA 2.2µF caps (see picture from Hans) directly soldered to the power pins of the ESP32. Unfortunately this didn't make any difference either - i still get the exact same error message from my initial post.

I'll bring the ESP32 to the Lab tomorrow and ...

Hi Angus,

the power supply can deliver up to 2A @ 0-15V and is set to ~3.33V.
IMAG0144.jpg

Setup on breadboard is following: (Caps are 470uF and 100nF)
IMAG0145.jpg

I also tried to solder the power pins directly to the power supply. Doesn't help. As i also tripple checked all solder pins of ...

Hi,

i spent the last couple of days trying to get any of the ESP32 Arduino examples to work. I got a ESP32 WROOM module on a simple breakout board. Connecting through standard USB->serial bridge. Circuit is very basic: EN pin connected via 22k to 3.3V, external power supply set to 3.3V, bunch of ...