Comments on: ESP32-CAM with Telegram: Take Photos, Control Outputs, Request Sensor Readings and Motion Notifications

By: Sara Santos

Sara Santos — Thu, 11 Dec 2025 14:59:10 +0000

Hi.
What code are you compiling?
We’re not using that line of code in our example.
Regards,
Sara

By: Aleksandr

Aleksandr — Mon, 08 Dec 2025 17:44:53 +0000

Everyone, have a great day! Why does an error occur when compiling your code in the Arduino IDE?
code: ”
// Init BME280 sensor
Wire.begin(I2C_SDA, I2C_SCL);
bme.settings.commInterface = I2C_MODE; ”
error: “exit status 1
‘I2C_MODE’ was not declared in this scope”

Thanks.

By: Luis Serranito

Luis Serranito — Fri, 31 Oct 2025 12:28:46 +0000

In reply to Massimo.

Same here… works fine on the original board, bot once I change I change to the RNT designed board I cannot get response from the camera. Next step : connect the data USB wires to the RNT PC board for fault finding (only the power wires are connected to the board)…

Great project, Sara and Rui, works well so far. I will need to have it on for a few days for a more objective assessment. Well done!

By: Massimo

Massimo — Wed, 08 Oct 2025 19:34:43 +0000

Hello,
Has anyone else built the PCB version and managed to get it working? Thank you in advance for any help.
Best regards,

By: Max

Max — Fri, 19 Sep 2025 16:47:07 +0000

Hello, I built the project you published, and while it works correctly on the breadboard, on the PCB the ESP32-CAM board does not power on. The voltage is supplied correctly: I am using a professional lab power supply and a tester to verify it. It seems like there is a permanent reset; I have already replaced the PCB board and checked all the solder joints. Could you help me?

Thank you
Best regards

By: Max

Max — Fri, 19 Sep 2025 10:52:36 +0000

Best Regards

By: Sara Santos

Sara Santos — Thu, 17 Jul 2025 21:06:49 +0000

In reply to Dusan.

We have this guide about the BME680 that might help: https://randomnerdtutorials.com/esp32-bme680-sensor-arduino/

Regards,
Sara

By: Dusan

Dusan — Thu, 17 Jul 2025 15:44:43 +0000

Hello. Has anyone replaced the BME280 sensor with the BME680 sensor? Please let me know.

By: Massimo

Massimo — Wed, 28 May 2025 16:44:55 +0000

Hello, I purchased an ESP32CAM Ai Thinker board from DIYmore with a micro USB interface that also serves as a power supply. Everything works correctly. When I power the board with an external source, the board no longer turns on. I contacted DIYmore, and they told me that the ESP32CAM only works with micro USB. Is that true?
Thank you for your attention. Best regards.

By: Uwe

Uwe — Sun, 09 Feb 2025 15:55:34 +0000

Hallo ihr Beiden,
bin nach ein paar Jahren zurück.
Problem beim Hochladen (zb. test LED)

Der Sketch verwendet 308216 Bytes (9%) des Programmspeicherplatzes. Das Maximum sind 3145728 Bytes.
Globale Variablen verwenden 20148 Bytes (6%) des dynamischen Speichers, 307532 Bytes für lokale Variablen verbleiben. Das Maximum sind 327680 Bytes.
esptool.py v4.8.1
Serial port COM5
Connecting………………………………..

A fatal error occurred: Failed to connect to ESP32: No serial data received.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
Fehlgeschlagenes Hochladen: Hochladefehler: exit status 2

Habe alles gelesen ,bekomme aber nichts hochgeladen. Hatte einmal funktioniert,am nächsten Tag nicht mehr ?
Benutze den micro programmierer, windows 11

zusatzfrage, wie gestaltet sich die Stromzufuhr zum cam shield pcb ?
Gruss Uwe