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by coolpixle
Tue Jul 14, 2026 11:45 am
Forum: General Discussion
Topic: ESP32-CAM-MB Upload Error: "Failed to write to target RAM (Checksum error)"
Replies: 4
Views: 74

Re: ESP32-CAM-MB Upload Error: "Failed to write to target RAM (Checksum error)"

I dont have another USB-serial device and what do you mean with lower the baud rate?
by coolpixle
Mon Jul 13, 2026 5:46 pm
Forum: General Discussion
Topic: ESP32-CAM-MB Upload Error: "Failed to write to target RAM (Checksum error)"
Replies: 4
Views: 74

ESP32-CAM-MB Upload Error: "Failed to write to target RAM (Checksum error)"

Hi everyone,

I recently bought an ESP32-CAM-MB board and I'm having trouble uploading code to it using the Arduino IDE. I'm trying to flash the default CameraWebServer example, but the upload consistently fails at the same spot.

Here is the full error log from the output console:

Sketch uses ...

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