Search found 31 matches

by Pcborges
Wed Apr 29, 2020 11:30 pm
Forum: ESP32 Arduino
Topic: ESP32 login to FTP server using GPRS does not work.
Replies: 0
Views: 863

ESP32 login to FTP server using GPRS does not work.

Hi, I am trying to transfer a small image (5k) to an FTP server (http would also do) but so far no success. The line: client.connect(ftpServer,21) works and the FTP server returns its welcome text but nothing else works. I can connect with the same credentials using telnet (using Putty). In my case ...
by Pcborges
Thu Apr 09, 2020 1:01 am
Forum: General Discussion
Topic: ESP32 to ESP32 local communication
Replies: 5
Views: 5379

Re: ESP32 to ESP32 local communication

Hi, thanks all.
What I need is to connect a camera to a TTGO Call where most pins are already taken. relocating some functions may be a solution but I would prefer to have an ESP32-Cam sending captured pictures once every, say, 10 minutes. That would solve the problem.
Regards
by Pcborges
Wed Apr 08, 2020 8:54 pm
Forum: General Discussion
Topic: Assistance with Tranfer image from ESP32-Cam to ESP32 via serial
Replies: 0
Views: 1395

Assistance with Tranfer image from ESP32-Cam to ESP32 via serial

Hi, I have run out of GPIO pins on my ESP32 project but still need to capture a picture. For that I am trying to use an ESP32-Cam. Cameras need a lot of pins and I just do not have them available. The ESP-Cam takes the picture and sends to ESP32, I would like to get the image and send it to FTP but ...
by Pcborges
Thu Mar 05, 2020 7:31 pm
Forum: General Discussion
Topic: ESP32 to ESP32 local communication
Replies: 5
Views: 5379

ESP32 to ESP32 local communication

Hi, I have a project where I need more GPIO pins than freely available on the ESP32 and would like to have a second ESP32 managing some sensors and, when requested, send sensor reading to the main ESP32 to be uploaded to the internet via GPRS (no Wifi available). I would like to avoid using local Wi...
by Pcborges
Wed Mar 04, 2020 12:41 am
Forum: General Discussion
Topic: Send picture from ESP32CAM to ESP32
Replies: 0
Views: 1399

Send picture from ESP32CAM to ESP32

Hi, I am working in a project where I need to transfer an image from an ESP32 to an FTP server via GPRS. The cheapest alternative I found was to use an ESP32CAM to take the pictures, send them to the TTGO T-SIM S7000G to be sent via GPRS to the FTP server. The TTGO does not have many pins left. WIFI...
by Pcborges
Sat Oct 12, 2019 1:27 pm
Forum: ESP32 Arduino
Topic: Preferences with FTP Client ESP32_FTPClient.h fails
Replies: 1
Views: 937

Preferences with FTP Client ESP32_FTPClient.h fails

I need to initialize FTP connection with credentials stored on Preferences. If I hard code like: //ESP32_FTPClient ftp("host.ftpserver.com", "ftpuser", "ftppass"); //WORKS OK preferences.begin("AppParms", true); String myserver = preferences.getString("ftpServer",""); String myuser = preferences.get...
by Pcborges
Mon Oct 07, 2019 9:55 pm
Forum: ESP32 Arduino
Topic: How to digest JSON data posted by http client to ESP32 Web Server?
Replies: 0
Views: 770

How to digest JSON data posted by http client to ESP32 Web Server?

Hi, My ESP32 WebServer sends a HTML page to a client browser. Customer fills the form and submits. Client browser posts form data using a var jsonFormInfo = JSON.stringify({ contruct type. Data arrives at ESP32 Web server as the console printout below. I am getting all the data I need (SEE BOLD TEXT...
by Pcborges
Fri Oct 04, 2019 11:50 pm
Forum: ESP-IDF
Topic: WIFI/BLE Simultaneously
Replies: 60
Views: 51330

Re: WIFI/BLE Simultaneously

Hi, it is said above that using BT and WiFi at the same time as long as they are not used simultaneously may work. I cannot make it work even when only one is used at any one time. I have a ESP32-CAM that sends emails with photos but needs WiFi connection. Wifi credentials are stored on SD card. Ask...
by Pcborges
Thu Sep 26, 2019 11:31 am
Forum: ESP32 Arduino
Topic: ESP32-Cam and SD Card
Replies: 12
Views: 13065

Re: ESP32-Cam and SD Card

@ mozgy-eu

But what gpio pins are freed by initializing the SD Card this way?
Thanks
Paulo
by Pcborges
Tue Sep 17, 2019 9:56 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM: Camera hex data stream use (How To?)
Replies: 0
Views: 841

ESP32-CAM: Camera hex data stream use (How To?)

Hi, I am trying to transfer an image from ESP32-CAM to Node-Red. ESP32-CAM can successfully save the image to SD and I can then view it on my PC. But when the jpg data stream arrives at Node_Red it looks like below: (FFD8FFE00010=jpg). An Exemple of what arrives to node-Red is as follow: FFD8FFE0001...

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