Search found 20 matches

by Synectix
Sun Jan 24, 2021 5:19 am
Forum: General Discussion
Topic: Looking for freelance developers
Replies: 2
Views: 4081

Looking for freelance developers

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...
by Synectix
Tue Jan 12, 2021 6:17 am
Forum: General Discussion
Topic: Wi-Fi and Wired Ethernet on ESP32
Replies: 0
Views: 2005

Wi-Fi and Wired Ethernet on ESP32

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...
by Synectix
Thu Jan 07, 2021 11:34 am
Forum: General Discussion
Topic: ESP32 maximum use of remaining Flash
Replies: 6
Views: 6083

Re: ESP32 maximum use of remaining Flash

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...
by Synectix
Thu Jan 07, 2021 9:14 am
Forum: General Discussion
Topic: ESP32 DHCP server lan8720 ethernet interface using arduino SDK
Replies: 11
Views: 17207

Re: ESP32 DHCP server lan8720 ethernet interface using arduino SDK

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...
by Synectix
Wed Dec 30, 2020 7:57 am
Forum: General Discussion
Topic: Newbie User - ESP32-WROOM-32E
Replies: 14
Views: 17814

Re: Newbie User - ESP32-WROOM-32E

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)....
by Synectix
Tue Dec 29, 2020 7:44 am
Forum: General Discussion
Topic: Newbie User - ESP32-WROOM-32E
Replies: 14
Views: 17814

Re: Newbie User - ESP32-WROOM-32E

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...
by Synectix
Mon Dec 28, 2020 12:00 pm
Forum: General Discussion
Topic: Newbie User - ESP32-WROOM-32E
Replies: 14
Views: 17814

Re: Newbie User - ESP32-WROOM-32E

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...
by Synectix
Fri Dec 25, 2020 11:58 am
Forum: General Discussion
Topic: IDF Boot Loader baud rate - can it be reduced ?
Replies: 5
Views: 8862

Re: IDF Boot Loader baud rate - can it be reduced ?

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 !
by Synectix
Fri Dec 25, 2020 11:35 am
Forum: General Discussion
Topic: IDF Boot Loader baud rate - can it be reduced ?
Replies: 5
Views: 8862

Re: IDF Boot Loader baud rate - can it be reduced ?

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...
by Synectix
Thu Dec 24, 2020 11:54 am
Forum: General Discussion
Topic: ESP32-WROOM-32 vs ESP32-WROOM-32D
Replies: 7
Views: 52576

Re: ESP32-WROOM-32 vs ESP32-WROOM-32D

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 !