Hi, I am looking for freelance developers who would be interested in working on projects based on the ESP32-WROOM-32E (or any other similar suitable ones). Suitable compensation will be offered. Please message me separately. (Moderators : I hope I am not violating the terms of use of this forum ! Pl...

Hi, Can the Wi-Fi and the wired Ethernet both be active simultaneously on the ESP32-WROOM-32E Module ? Or, is it only or the other that can be used at any given time ? My requirement is for the Wi-Fi interface to be on DHCP and connect as a station to the on-premise Wi-Fi AP in a location. The wired...

Hi, Another similar question on the same lines..... In the WROOM-32E Module with 4MB flash, is it possible for me to use, say 200k or 300k of memory from the 4MB Flash for my data storage ? My code is quite small and comes in under 2MB. Alternately, if I use a 8MB Module, then I can have 4MB for cod...

Hi, I am trying to find any document which shows how to interface the LAN8720 with the ESP32 Modules, but can't seem to find any ! Can someone help me with this please ? I need the schematic where a LAN8720 is connected to, say, ESP32-WROOM-32E Module. Any problems in using this device ? The only ex...

Thanks Jan ! My only problem with the Li or LiFe-PO4 type of batteries is their form factor. The large cylindrical shape makes it a little difficult for me to have a slim & sleek hand held pendant like a key fob....though, I do see a few in the 1/2AA size or AA diameter but much longer (18650 type)....

Understood ! However, is the 3.0V output from a Lithium battery (which could go down to say, 2.70V after some usage) adequate for the ESP32-WROOM-32E Module to work ? I was under the impression that you need 3.3V because of the SPI Flash chip on the module which needs 3.3V ! At what voltage will thi...

Hi Jan, I have made some progress in understanding the ESP32 & the idf.py environment. I made one module as an ibeacon Sender and another as ibeacon receiver (using the examples provided) and could successfully receive the ibeacon packets transmitted by the sender and see the output on the "idf.py m...

Success !
I had to bring EN & IO0 low, then make EN high while keeping IO0 low.....and I could download the firmware into flash at 115200 baud

Thanks for your help !

Tried various combinations of pulling the EN & IO0 pins LOW and then HI as you had suggested, but to no avail ! I used a small PIC micro to manipulate these pins in different ways, with / without a delay...but, nothing helped. In the "ESP32-WROOM-32E" datasheet, it says to keep IO0 and IO2 low to en...

Found some information on the specifications of the various Modules & Devices here :
https://www.espressif.com/sites/default ... ion_en.pdf

However, information on peripherals and the difference between similar parts is not given.
Still, helpful !