Comments for Random Nerd Tutorials

Comment on Raspberry Pi Pico W: Bluetooth Low Energy (BLE) with MicroPython by Jared

Jared — Tue, 12 May 2026 09:59:04 +0000

I have a Bluetooth LE mouse I’d like to be able to read X/Y values from, when moving it, on my Pi Pico W. How would I go about doing this?

Comment on Getting Started with ESP32 Cheap Yellow Display Board – CYD (ESP32-2432S028R) by Joh Kavathas

Joh Kavathas — Mon, 11 May 2026 21:08:11 +0000

Hello again,
Does anybody know what this 8 pin footprint next to the WROOM CPU can be used for? Somewhere read it is FLASH (memory?) but why it is unpopulated?
Thanks

Comment on Getting Started with the ESP32-C3 Super Mini by Michael

Michael — Mon, 11 May 2026 18:38:57 +0000

In reply to jvabole. See reply to Sara...

Comment on Getting Started with the ESP32-C3 Super Mini by Michael

Michael — Mon, 11 May 2026 18:37:47 +0000

In reply to Sara Santos.

Hi Sara, thanks for the reply. The code loaded and ran, just never got any of the serial messages. After a lot of research, trying fixes, and a few different C3 hardware profiles, everything works as intended simply after selecting the LOLIN C3 Mini. It was a Temu purchase, so had zero information on it.

Cheers,
Michael

Comment on Getting Started with the ESP32-C3 Super Mini by jvabole

jvabole — Mon, 11 May 2026 10:02:41 +0000

The problem could be in Win10, when the COM port number assigned to Win10 is different in the esp32c3 programming and operating modes, in which case the number must be specified manually in Win, the same for both cases.

Comment on Getting Started with the ESP32-C3 Super Mini by Sara Santos

Sara Santos — Mon, 11 May 2026 09:39:23 +0000

In reply to Michael L..

Hi.
What happens when you open the Serial Monitor?
Do you get any errors?
Can you upload code to the boarD?
Regards,
Sara

Comment on ESP32-CAM Video Streaming Web Server (works with Home Assistant) by Thomas Fischer

Thomas Fischer — Mon, 11 May 2026 06:38:02 +0000

Hi,
during updating the sketch I get those messages for both lines:

config.pin_sccb_sda = SIOD_GPIO_NUM;
config.pin_sccb_scl = SIOC_GPIO_NUM;

struct camera_config_t has no member named pin_sddb_sda
struct camera_config_t has no member named pin_sddb_scl

Thanks for your help

Comment on Getting Started with the ESP32-C3 Super Mini by Michael L.

Michael L. — Mon, 11 May 2026 02:53:28 +0000

Thank you for your great tutorials! Can you offer any thoughts why I cannot ever see any serial output on the C3 mini? I often have the same problem with ESP32-S3 Zero as well, though no issues with the full size NODEMCU-32 V1.2 – still using IDE v1.8.19

Comment on ESP32 CYD: Use Display, Touchscreen and MicroSD Card Simultaneously by fxarax

fxarax — Mon, 11 May 2026 02:28:31 +0000

I can suggest this different solution with standard libraries: “https://github.com/ropg/LVGL_CYD/issues/3”.
See the last comment.

Comment on Node-RED with Raspberry Pi Camera (Take Photos) by fabrice

fabrice — Sat, 09 May 2026 07:22:01 +0000

Hi,
I did not manage to run this tutorial.
Everything works with python but not with Node-red.
I always get “Cannot GET /photo1.JPEG”. I tried all the tips I could read on the net…
I am running a zero2W with Trixie. Did not try with Pi4.